A Synopsis of Frullania

Frullaniaceae, Marchantiophyta — 617 accepted species

Frullania Raddi, Jungermanniogr. Etrusca: 9. 1818. (Raddi 1818)
- =Salviatus Gray, Nat. Arr. Brit. Pl. 1: 687. 1821, nom. illeg. (Yano & Gradstein 1997)
- =Mylia Léman, Dict. Sci. Nat. (ed. 2) 34: 13. 1825, nom. illeg. (Grolle 1983)
- =Amphijubula R.M. Schust., J. Hattori Bot. Lab. 33: 298. 1970. (Schuster 1970; von Konrat et al. 2011)
- =Steerea S. Hatt. & Kamim., J. Hattori Bot. Lab. 34: 429. 1971. (Hattori & Kamimura 1971; Schuster 1992)
- =Schusterella S. Hatt., Sharp & Mizut., Jap. J. Bot. 20: 330. 1972. (Hattori et al. 1972; Yano & Gradstein 1997)
Frullania aberrans (C. Massal.) Mamontov, Vilnet & J.J. Atwood, Plants 13(17, 2397): 36. 2024. (Mamontov et al. 2024)

Basionym: Frullania aeolotis var. aberrans C. Massal., Mem. Accad. Verona 73(2): 39. 1897. (Massalongo 1897; Mamontov et al. 2024)
Frullania acicularis Hentschel & von Konrat, Phytotaxa 220(2): 134. 2015. (Hentschel et al. 2015)

Replaced synonym: Frullania tamarisci var. azorica J.-P. Frahm, Trop. Bryol. 27: 102. 2006. (Frahm 2006)
Frullania aculeata Taylor, London J. Bot. 5: 407. 1846. (Taylor 1846)
- =Jungermannia pungens Wilson, Trans. Linn. Soc. London 20: 165. 1847. ≡Frullania pungens (Wilson) Steph., Sp. Hepat. (Stephani) 4: 549. 1911. (Clark 1956)
- =Frullania acuminata Steph., Sp. Hepat. (Stephani) 4: 606. 1911. (Uribe-M. & Gradstein 2003)
†Frullania acutata Casp., Schriften Königl. Phys.-Ökon. Ges. Königsberg 27: 5. 1887. (Caspary 1887)
Frullania affinis Nees & Mont., Ann. Sci. Nat., Bot., sér. 2, 19: 257. 1843. (Montagne 1843)
Frullania afraria Steph., Hedwigia 33(3): 141. 1894. (Stephani 1894)
- =Frullania stephanii Schiffn., Nov. Actorum Acad. Caes. Leop.-Carol. German. Nat. Cur. 60(2): 226. 1893. (Wigginton 2018)
- =Frullania hoehneliana Steph., Hedwigia 33(3): 145. 1894. (Wigginton 2018)
- =Frullania molleri Steph., Hedwigia 33(3): 146. 1894. (Wigginton 2018)
- =Frullania sandei Kiaer ex Steph., Hedwigia 33(3): 147. 1894. (Grolle 1995)
- =Frullania nutans Steph., Bot. Jahrb. Syst. 30: 260. 1901. (Wigginton 2018)
- =Frullania lobangensis Steph., Sp. Hepat. (Stephani) 4: 379. 1910. (Wigginton 2018)
- =Frullania erosolimbata Steph., Sp. Hepat. (Stephani) 6: 538. 1924. (Wigginton 2018)
Frullania afraria Steph. f. afraria
Frullania afraria f. anomala Vanden Berghen, Bull. Jard. Bot. Natl. Belg. 46: 183. 1976. (Vanden Berghen 1976; Wigginton 2018)
Frullania akiyamae S. Hatt., J. Hattori Bot. Lab. 60: 240. 1986. (Hattori 1986c)
Frullania allanii E.A. Hodgs., Trans. & Proc. Roy. Soc. New Zealand 77: 371. 1949. (Hodgson 1949)
Frullania alstonii Verd., Ann. Bryol., Suppl. 1: 76. 1930. (Verdoorn 1930a)
- =Frullania perocellata Onr., Rev. Bryol. Lichénol. 44: 77. 1978. (Onraedt 1978; Long & Rubasinghe 2014)
Frullania alstonii Verd. var. alstonii
Frullania alstonii var. pfleidereri S. Hatt., J. Hattori Bot. Lab. 36: 119. 1972[1973]. (Hattori 1972b; Singh et al. 2016)
Frullania alternans Nees, Syn. Hepat.: 430. 1845. (Gottsche et al. 1844)
Frullania amamiensis Kamim., Bull. Kochi Gakuen Junior Coll. 1: 51. 1970. (Kamimura 1970)
Frullania amazonica E. Lima, Ilk.-Borg. & Gradst., Phytotaxa 456(1): 120. 2020. (Lima et al. 2020)
Frullania ambronnii Steph., Biblioth. Bot. 87: 242. 1916. (Herzog 1916)
- =Frullania harpantha Herzog, Beih. Bot. Centralbl., Abt. 2, 61: 571. 1942. (Hentschel et al. 2015)
Frullania amplicrania Steph., Sp. Hepat. (Stephani) 4: 404. 1910. (Stephani 1912)
Frullania ampullifera J.B. Jack & Steph., Hedwigia 33(3): 139. 1894. (Stephani 1894)
Frullania anderssonii Ångstr., Öfvers. Kongl. Vetensk.-Akad. Förh. 30(5): 144. 1873. (Ångström 1873)
- =Frullania ovalifolia Kiaer & Pearson, Forh. Vidensk.-Selsk. Kristiania 1890(2): 4. 1891. (Wigginton 2018)
- =Frullania robillardii Steph., Bull. Soc. Roy. Bot. Belgique 32: 103. 1893. (Wigginton 2018)
- =Frullania obscura Steph., Sp. Hepat. (Stephani) 4: 375. 1910, nom. illeg. (Wigginton 2018)
- =Frullania macroloba Steph., Sp. Hepat. (Stephani) 4: 377. 1910. (Wigginton 2018)
- =Frullania renistipula Steph., Sp. Hepat. (Stephani) 4: 378. 1910. (Wigginton 2018)
Frullania angulata Mitt., J. Proc. Linn. Soc., Bot. 7: 169. 1864. (Mitten 1863)
- =Frullania varia Gottsche, Abh. Naturwiss. Vereins Bremen 7: 363. 1882. (Wigginton 2018)
- =Frullania elliotii Steph., Hedwigia 33: 153. 1894. (Wigginton 2018)
- =Frullania holstii Steph., Hedwigia 33: 158. 1894. (Wigginton 2018)
- =Frullania goetzeana Steph., Bot. Jahrb. Syst. 30: 261. 1901. (Wigginton 2018) ≡Frullania angulata var. goetzeana (Steph.) Demaret & Vanden Berghen, Bull. Jard. Bot. Natl. Belg. 20: 9. 1950.
- =Frullania jungneri Steph., Sp. Hepat. (Stephani) 4: 482. 1911. (Wigginton 2018)
- =Frullania kizarensis Steph., Sp. Hepat. (Stephani) 4: 549. 1911. (Wigginton 2018)
- =Frullania newtonii Steph., Sp. Hepat. (Stephani) 4: 592. 1911. (Wigginton 2018)
- =Frullania subatrata Steph., Sp. Hepat. (Stephani) 4: 592. 1911. (Wigginton 2018)
- =Frullania cordifolia Steph., Sp. Hepat. (Stephani) 4: 683. 1911. (Wigginton 2018)
- =Frullania hispida Steph., Sp. Hepat. (Stephani) 4: 685. 1911. (Wigginton 2018)
- =Frullania substricta Steph., Denkschr. Kaiserl. Akad. Wiss., Wien Math.-Naturwiss. Kl. 88: 729. 1913. (Wigginton 2018)
Frullania angulata Mitt. f. angulata
Frullania angulata Mitt. var. angulata
Frullania angulata var. laciniata Vanden Berghen, Bull. Jard. Bot. Natl. Belg. 46: 72. 1976. (Vanden Berghen 1976; Wigginton 2018)
Frullania angulata f. serratoides Vanden Berghen, Cryptog. Bryol. Lichénol. 4: 175. 1983. (Vanden Berghen 1983; Wigginton 2018)
Frullania angustistipa Steph., Denkschr. Kaiserl. Akad. Wiss., Wien Math.-Naturwiss. Kl. 81: 297. 1908. (Rechinger 1908)
Frullania anomala E.A. Hodgs., Trans. & Proc. Roy. Soc. New Zealand 77(3): 374. 1949. (Hodgson 1949)
Frullania antaresensis S. Hatt., J. Hattori Bot. Lab. 47: 92. 1980. (Hattori 1980d)
Frullania aoshimensis Horik., Sci. Rep. Tôhoku Imp. Univ., Ser. 4, Biol. 4: 64. 1929. (Horikawa 1929)
- =Frullania tsukushiensis Horik., Sci. Rep. Tôhoku Imp. Univ., Ser. 4, Biol. 4: 66. 1929. (Horikawa 1929; Yamada & Iwatsuki 2006)
Frullania apertilobula Gerola, Lav. Bot. Ist. Bot. Univ. Padova 12: 478. 1947. (Gerola 1947)
Frullania apicalis Mitt., Philos. Trans. 168(extra vol.): 401. 1879. (Mitten 1879)
- =Frullania rutenbergii Gottsche, Abh. Naturwiss. Vereins Bremen 7: 363. 1882. (Wigginton 2018)
- =Frullania rodriguezii Steph., Hedwigia 33: 166. 1894. (Wigginton 2018)
- =Frullania densepinnata Steph., Sp. Hepat. (Stephani) 4: 480. 1911. (Wigginton 2018)
- =Frullania stipatiflora Steph., Sp. Hepat. (Stephani) 4: 483. 1911. (Wigginton 2018)
- =Frullania laceriloba Steph., Sp. Hepat. (Stephani) 4: 484. 1911. (Wigginton 2018)
- =Frullania brunnthaleri Steph., Sp. Hepat. (Stephani) 4: 623. 1911. (Wigginton 2018)
- =Frullania renauldii Steph., Sp. Hepat. (Stephani) 4: 627. 1911, nom. illeg. ≡Frullania insularis Beauverd, Sp. Hepat. (Stephani) 6: 570. 1924. (Wigginton 2018)
- =Frullania kinangopii Gola, Mem. Reale Accad. Sci. Torino, ser. 2, 65: 9. 1914. (Gola 1914b; Wigginton 2018)
- =Frullania kilimandjarica Vanden Berghen, Svensk Bot. Tidskr. 47: 267. 1953. (Wigginton 2018)
- =Frullania laceriloba var. acutifolia S.W. Arnell, Svensk Bot. Tidskr. 50(4): 528. 1956. (Arnell 1956; Vanden Berghen 1976)
Frullania apicalis Mitt. var. apicalis
Frullania apicalis var. camerunensis Vanden Berghen, Bull. Jard. Bot. Natl. Belg. 46: 53. 1976. (Vanden Berghen 1976; Wigginton 2018)
Frullania apiculata (Reinw., Blume & Nees) Nees, Syn. Hepat.: 452. 1845. (Gottsche et al. 1844)

Basionym: Jungermannia apiculata Reinw., Blume & Nees, Nova Acta Phys.-Med. Acad. Caes. Leop.-Carol. Nat. Cur. 12: 222. 1825. (Reinwardt et al. 1824; Vanden Berghen 1976)
- =Jungermannia apiculata var. nodulosa Nees, Enum. Pl. Crypt. Jav.: 50. 1830. ≡Frullania apiculata var. nodulosa (Nees) Schiffn., Consp. Hepat. Arch. Ind.: 320. 1898. (Söderström et al. 2010)
- =Frullania explicata Mont., Ann. Sci. Nat., Bot., sér. 2, 19: 256. 1843. (Montagne 1843; So & Wang 2006) ≡Frullania apiculata var. explicata (Mont.) Schiffn., Oesterr. Bot. Z. 60(11): 432. 1910.
- =Frullania mertensiana Lindenb., Syn. Hepat. (fasc. 3): 446. 1845. (Gottsche et al. 1844; Sukkharak 2018)
- =Frullania apiculata var. obscura Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 3): 452. 1845. (Gottsche et al. 1844; Söderström et al. 2010)
- =Frullania pacificae Taylor, London J. Bot. 5: 406. 1846. (Taylor 1846; Hattori & Piippo 1986)
- =Frullania apiculata var. guianensis Lindenb. & Gottsche, Linnaea 24(6): 638. 1851[1852]. (Lindenberg & Gottsche 1851)
- =Frullania karstenii Schiffn., Nova Acta Acad. Caes. Leop.-Carol. German. Nat. Cur. 60(2): 223. 1893. (Sukkharak 2018)
- =Frullania densifolia Steph., Hedwigia 33(3): 161. 1894. (Sukkharak 2018)
- =Frullania nigricans Steph., Sp. Hepat. (Stephani) 4: 476. 1911. (Wigginton 2018)
- =Frullania uncifolia Gottsche, Sp. Hepat. (Stephani) 4: 540. 1911. (Sukkharak 2018)
- =Frullania acutistipula Steph., Sp. Hepat. (Stephani) 4: 550. 1911. (Hattori & Piippo 1986)
- =Frullania anamensis Steph., Sp. Hepat. (Stephani) 4: 551. 1911. (Sukkharak 2018)
- =Frullania camerunensis Steph., Sp. Hepat. (Stephani) 4: 620. 1911. (Wigginton 2018)
- =Frullania perrotiana Steph., Sp. Hepat. (Stephani) 4: 621. 1911. (Wigginton 2018)
- =Frullania capilliformis Steph., Sp. Hepat. (Stephani) 4: 639. 1911. (Sukkharak 2018)
- =Frullania staudtiana Steph., Sp. Hepat. (Stephani) 4: 685. 1911. (Wigginton 2018)
- =Jubula vittata Steph., Sp. Hepat. (Stephani) 4: 692. 1911. (Sukkharak 2018)
- =Frullania pandanicola Steph., Sp. Hepat. (Stephani) 6: 553. 1924. (Hattori & Piippo 1986)
- =Frullania apiculata f. warburgii Verd., Nova Guinea 14: 542. 1930. (Hattori & Piippo 1986)
- =Frullania apiculata f. aculeata Verd., Nova Guinea 14: 543. 1930. (Hattori & Piippo 1986)
- =Frullania apiculata subsp. kaindimontana S. Hatt., J. Hattori Bot. Lab. 36: 417. 1972[1973]. (Hattori 1982d)
- =Frullania apiculata var. obtusata S. Hatt., J. Jap. Bot. 53: 129. 1978. (Hattori & Thaithong 1978a; Hattori 1982d)
- =Frullania apiculata var. parva S. Hatt., Cryptog. Bryol. Lichénol. 5: 177. 1984. (Hattori 1984a; von Konrat & Braggins 2001)
Frullania apiculata (Reinw., Blume & Nees) Nees var. apiculata
Frullania apiculata var. goebelii Schiffn., Nova Acta Acad. Caes. Leop.-Carol. German. Nat. Cur. 60(2): 222. 1893. (Schiffner 1893; Bardat et al. 2021)
- =Frullania oceanica Mitt., Fl. Vit.: 417. 1871[1873]. (Bardat et al. 2021)
- =Frullania relicta Steph., Sp. Hepat. (Stephani) 4: 543. 1911. (Verdoorn 1930a)
- =Frullania pallida Steph., Sp. Hepat. (Stephani) 4: 641. 1911. (Söderström et al. 2010)
Frullania apiculata var. laxa Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 3): 452. 1845, nom. illeg. (Gottsche et al. 1844; Söderström et al. 2010)
Frullania aposinensis S. Hatt. & P.J. Lin, J. Hattori Bot. Lab. 59: 131. 1985. (Hattori & Lin 1985b)

Replaced synonym: Frullania chinensis Steph., Sp. Hepat. (Stephani) 4: 469. 1911, nom. illeg. (Stephani 1912)
Frullania appalachiana R.M. Schust., Phytologia 53(5): 366. 1983. (Schuster 1983)
Frullania appendiculata Steph., Bull. Herb. Boissier 5: 88. 1897. (Stephani 1897b; Konstantinova et al. 2009)

≡Frullania moniliata f. appendiculata (Steph.) Verd., Ann. Bryol., Suppl. 1: 81. 1930.
- =Frullania moniliata var. rotundata Horik., Bot. Mag. (Tokyo) 49: 675. 1935. (Yamada & Iwatsuki 2006)
Frullania appendistipula S. Hatt., J. Hattori Bot. Lab. 36: 424. 1972[1973]. (Hattori 1972c)
Frullania appendistipula S. Hatt. var. appendistipula
Frullania appendistipula var. spinifera S. Hatt., J. Hattori Bot. Lab. 38: 226. 1974. (Hattori 1974d; Söderström et al. 2016)
Frullania armata Herzog & L. Clark, Bryologist 57(1): 36. 1954. (Clark 1954)
Frullania armatifolia Verd., Bull. Jard. Bot. Buitenzorg, sér. 3, 12(1): 61. 1932. (Verdoorn 1932b)
- =Frullania altemammillata S. Hatt., J. Hattori Bot. Lab. 36: 435. 1972[1973]. (Hattori & Piippo 1986)
- =Frullania repandistipula var. dioica S. Hatt., J. Hattori Bot. Lab. 38: 176. 1974. (Hattori 1974b; Hattori & Piippo 1986)
Frullania armitiana Steph., Sp. Hepat. (Stephani) 4: 538. 1911. (Stephani 1912)
Frullania armitiana Steph. var. armitiana
Frullania armitiana var. inflexula S. Hatt., J. Hattori Bot. Lab. 65: 415. 1988. (Hattori 1988b; Söderström et al. 2016)
Frullania asagrayana Mont., Ann. Sci. Nat., Bot., sér. 2, 18(1): 14 [footnote]. 1842. (Montagne 1842a; Stotler & Crandall-Stotler 2017)

≡Frullania tamarisci subsp. asagrayana (Mont.) S. Hatt., Fl. E. Himalaya 1: 528. 1966.
- =Frullania tamarisci var. americana Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 3): 439. 1845. (Gottsche et al. 1844; Schuster 1992)
- =Frullania grayana Sull., Manual (ed. 2): 697. 1856, nom. illeg. (Sullivant 1856; Schuster 1992)
Frullania asiatica (S. Hatt.) Mamontov & J.J. Atwood, Plants 13(17, 2397): 36. 2024. (Mamontov et al. 2024)

Basionym: Frullania dilatata subsp. asiatica S. Hatt., J. Jap. Bot. 57: 258. 1982. (Hattori 1982c; Mamontov et al. 2024)
Frullania astrolabea Steph., Sp. Hepat. (Stephani) 4: 460. 1910. (Stephani 1912)
Frullania aterrima (Hook. f. & Taylor) Gottsche, Lindenb. & Nees, Syn. Hepat.: 450. 1845. (Gottsche et al. 1844)

Basionym: Jungermannia aterrima Hook. f. & Taylor, London J. Bot. 3: 395. 1844. (Hooker & Taylor 1844a)
- =Frullania weymouthiana Steph., Sp. Hepat. (Stephani) 4: 660. 1911. (Scott & Bradshaw 1985)
Frullania atrata (Sw.) Nees ex Mont., Ann. Sci. Nat., Bot., sér. 2, 12: 51. 1839. (Montagne 1839a)

Basionym: Jungermannia atrata Sw., Prodr.: 144. 1788. (Swartz 1788; Uribe-M. 2008)
- =Jungermannia atrata var. flaccida F. Weber, Hist. Musc. Hepat. Prodr. (Weber): 25. 1815. ≡Frullania atrata var. flaccida (F. Weber) Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 3): 464. 1845. (Gottsche et al. 1844)
- =Frullania atrata var. martiana Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 3): 464. 1845. (Gottsche et al. 1844)
- =Frullania atrata var. swartzii Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 3): 464. 1845. (Söderström et al. 2011a)
- =Frullania atrata var. mexicana Gottsche, Lindenb. & Nees, Syn. Hepat.: 464. 1845. (Gottsche et al. 1844)
- =Frullania liebmanniana Lindenb. & Gottsche, Syn. Hepat. (fasc. 5): 784. 1847. (Uribe-M. & Gradstein 2003)
- =Frullania reflexa Ångstr., Öfvers. Kongl. Vetensk.-Akad. Förh. 33(7): 89. 1876. (Ångström 1876; Gradstein & Costa 2003)
- =Frullania subaculeata Spruce, Bull. Soc. Bot. France 36(Suppl. Congrés Bot. 1889): CCII. 1889[1890]. (Spruce 1889; Uribe-M. & Gradstein 2003)
- =Frullania lechleri Steph., Hedwigia 33: 153. 1894. (Uribe-M. & Gradstein 2003)
- =Frullania turbata Steph., Sp. Hepat. (Stephani) 4: 597. 1911. (Uribe-M. & Gradstein 2003)
- =Frullania lindeniana Steph., Sp. Hepat. (Stephani) 4: 603. 1911. (Uribe-M. & Gradstein 2003)
- =Frullania crinoidea Spruce ex Steph., Sp. Hepat. (Stephani) 4: 604. 1911. (Uribe-M. & Gradstein 2003)
- =Frullania leiboldiana Steph., Sp. Hepat. (Stephani) 4: 609. 1911. (Uribe-M. & Gradstein 2003)
Frullania attenuata Steph., Sp. Hepat. (Stephani) 4: 538. 1911. (Stephani 1912)
- =Frullania longeattenuata S. Hatt., J. Hattori Bot. Lab. 37: 66. 1973. (Hattori & Piippo 1986) ≡Frullania attenuata var. longeattenuata (S. Hatt.) S. Hatt., J. Hattori Bot. Lab. 39: 280. 1975. (Hattori 1975f) ≡Frullania armitiana var. longeattenuata (S. Hatt.) S. Hatt., J. Hattori Bot. Lab. 47: 107. 1980. (Hattori 1980d)
Frullania auriculata S. Hatt., Bull. Natl. Sci. Mus. Tokyo, B 11: 11. 1985. (Hattori 1985)
Frullania austinii J.J. Atwood, Vilnet, Mamontov & Konstant., Nova Hedwigia Beih. 150: 231. 2020. (Mamontov et al. 2020b)
Frullania azorica Sim-Sim, Sérgio, Mues & Kraut, Cryptog. Bryol. Lichénol. 16: 112. 1995. (Sim-Sim et al. 1995)
Frullania azureomontana Schäf.-Verw. & Gerh. Winter, Frahmia 30: 2. 2022. (Schäfer-Verwimp & Winter 2022)
†Frullania baerlocheri Heinrichs, Reiner-Drehwald, K. Feldberg, von Konrat, Hentschel, Váňa & A.R. Schmidt, Rev. Palaeobot. Palynol. 169(1): 26. 2012. (Heinrichs et al. 2012)
- =†Frullania pinnata Heinrichs, K. Feldberg, Schäf.-Verw. & M. Krings, Cretaceous Res. 78: 57. 2017. (Heinrichs et al. 2017; Li et al. 2021a)
Frullania baileyana Steph., Sp. Hepat. (Stephani) 4: 417. 1910. (Stephani 1912)
Frullania baladina Gottsche ex Steph., Hedwigia 33: 140. 1894. (Stephani 1894)
- =Frullania baladina var. edentata S. Hatt., J. Hattori Bot. Lab. 57: 407. 1984. (Hattori 1984c; Thouvenot et al. 2011)
†Frullania baltica Grolle, Prace Muz. Ziemi 37: 89. 1985. (Grolle 1985)
Frullania baumannii S. Hatt., J. Hattori Bot. Lab. 43: 410. 1977. (Hattori 1977a)
- =Frullania baumannii var. elongata S. Hatt., J. Hattori Bot. Lab. 43: 411. 1977. (Hattori 1977a; Thouvenot et al. 2011)
Frullania beauverdii Steph., Biblioth. Bot. 87: 241. 1916. (Herzog 1916)
- =Frullania ovistipula Steph., Biblioth. Bot. 87: 240. 1916. (Herzog 1916; Gradstein et al. 2003)
- =Frullania barbeyana Steph., Biblioth. Bot. 87: 241. 1916. (Herzog 1916; Gradstein et al. 2003)
Frullania bella Steph., Sp. Hepat. (Stephani) 4: 643. 1911. (Stephani 1912)
Frullania belmorensis Steph., J. & Proc. Roy. Soc. New South Wales 48(1–2): 106. 1914. (Stephani & Watts 1914)
Frullania benjaminiana Inoue, Bull. Natl. Sci. Mus. Tokyo, n.s. 10(2): 158. 1967. (Inoue 1967)
Frullania bergmanii S. Hatt., J. Hattori Bot. Lab. 38: 192. 1974. (Hattori 1974c)
- =Frullania bergmanii var. latiloba S. Hatt., J. Hattori Bot. Lab. 38: 229. 1974. (Hattori 1974d; Hattori & Piippo 1986)
Frullania berthoumieui Steph., Hedwigia 33: 140. 1894. (Stephani 1894)
Frullania beyrichiana (Lehm. & Lindenb.) Lehm. & Lindenb., Syn. Hepat.: 460. 1845. (Gottsche et al. 1844)

Basionym: Jungermannia beyrichiana Lehm. & Lindenb., Nov. Stirp. Pug. 5: 25. 1833. (Lehmann 1833)

≡Frullania beyrichii Ångstr., Öfvers. Kongl. Vetensk.-Akad. Förh. 33(7): 89. 1876, nom. illeg.
- =Frullania beyrichiana var. granatensis Gottsche, Ann. Sci. Nat., Bot., sér. 5, 1: 174. 1864. (Stotler 1969)
- =Frullania fluminensis Gottsche ex Steph., Hedwigia 33(3): 157. 1894. (Stotler 1969)
- =Frullania coalita Steph., Sp. Hepat. (Stephani) 4: 683. 1911. (Gradstein & Uribe-M. 2016)
Frullania bhutanensis S. Hatt., Fl. E. Himalaya 2: 232. 1971. (Hattori 1971)
- =Frullania sinosphaerantha S. Hatt. & P.J. Lin, J. Hattori Bot. Lab. 59: 144. 1985. (Hattori & Lin 1985b; Schäfer-Verwimp & Winter 2020)
Frullania bicornistipula Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 46. 1884. (Spruce 1884–1885; Söderström et al. 2016)
- =Frullania bradeana Steph., Sp. Hepat. (Stephani) 6: 545. 1924. (Stotler 1969) ≡Frullania bicornistipula var. bradeana (Steph.) L. Clark & Svihla, Bryologist 54(2): 124. 1951.
- =Frullania mucroloba L. Clark & Svihla, Bryologist 52(3): 134. 1949. (Stotler 1969) ≡Frullania bicornistipula var. mucroloba (L. Clark & Svihla) L. Clark & Svihla, Bryologist 54(2): 124. 1951.
Frullania blastopetala S. Hatt., J. Hattori Bot. Lab. 57: 407. 1984. (Hattori 1984c)
Frullania blepharozia Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 18. 1884. (Spruce 1884–1885)
Frullania bogotensis Steph., Sp. Hepat. (Stephani) 4: 327. 1910. (Stephani 1912)
Frullania bolanderi Austin, Proc. Acad. Nat. Sci. Philadelphia 21(4): 226. 1869. (Austin 1869)
- =Frullania hallii Austin, Bull. Torrey Bot. Club 6(3): 20. 1875. (Austin 1875; Schuster 1992)
Frullania bonariensis M.E. Reiner, Bol. Soc. Argent. Bot. 25: 313. 1988. (Reiner 1988)
Frullania bonincola S. Hatt., J. Hattori Bot. Lab. 44: 551. 1978. (Hattori 1978)

Replaced synonym: Frullania viridis Horik., Sci. Rep. Tôhoku Imp. Univ., Ser. 4, Biol. 5(4): 646. 1929[1930], nom. illeg. (Horikawa 1930)
Frullania borbonica Lindenb., Syn. Hepat.: 455. 1845. (Gottsche et al. 1844)
Frullania boveana C. Massal., Nuovo Giorn. Bot. Ital. 17: 244. 1885. (Massalongo 1885)
Frullania brachycarpa Spruce, Bull. Soc. Bot. France 36(Suppl. Congrés Bot. 1889): CCIV. 1889[1890]. (Spruce 1889)
Frullania brasiliensis Raddi, Critt. Bras.: 12. 1822. (Raddi 1822)
- =Jungermannia globosa C.F.W. Meissn. ex Spreng., Syst. Veg. [Sprengel] 4(2): 324. 1827. (Gottsche et al. 1844)
- =Jungermannia divergens Lehm. & Lindenb., Nov. Stirp. Pug. 5: 22. 1833. ≡Frullania divergens (Lehm. & Lindenb.) Mont., Ann. Sci. Nat., Bot., sér. 2, 14: 333. 1840. (Stotler 1969)
- =Jungermannia mucronata Lehm. & Lindenb., Nov. Stirp. Pug. 6: 54. 1834. ≡Jubula mucronata (Lehm. & Lindenb.) Nees & Mont., Ann. Sci. Nat., Bot., sér. 2, 5: 65. 1836. ≡Frullania mucronata (Lehm. & Lindenb.) Lehm. & Lindenb., Syn. Hepat.: 461. 1845. (Uribe-M. & Gradstein 2003)
- =Frullania tenuis Hampe ex Lehm., Nov. Stirp. Pug. 7: 13. 1838. (Uribe-M. & Gradstein 2003)
- =Frullania cylindrica Gottsche ex Lehm., Nov. Stirp. Pug. 8: 13. 1844. (Gradstein & Uribe-M. 2016) ≡Frullania brasiliensis var. cylindrica (Gottsche ex Lehm.) Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 50. 1884.
- =Frullania cylindrica f. major Lehm., Nov. Stirp. Pug. 8: 13. 1844. (Lehmann 1844)
- =Frullania cylindrica f. minor Lehm., Nov. Stirp. Pug. 8: 13. 1844. (Lehmann 1844)
- =Frullania mucronata var. submutica Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 3): 462. 1845. (Gottsche et al. 1844)
- =Frullania patens Lindenb., Syn. Hepat. (fasc. 3): 462. 1845. (Hässel de Menéndez & Rubies 2009)
- =Frullania cylindrica var. atrofusca Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 5): 781. 1847. (Gottsche et al. 1844)
- =Frullania cylindrica var. grandis Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 5): 781. 1847. (Gottsche et al. 1844)
- =Frullania leiboldii Lindenb. & Gottsche, Syn. Hepat.: 782. 1847. (Stotler 1969)
- =Frullania brasiliensis var. muelleriana Gottsche, Mexik. Leverm.: 246 (342). 1863. (Fulford & Sharp 1990)
- =Frullania cylindrica f. brevicalycina Gottsche, Ann. Sci. Nat., Bot., sér. 5, 1: 171. 1864. (Stotler 1969)
- =Frullania cylindrica var. granatensis Gottsche, Ann. Sci. Nat., Bot., sér. 5, 1: 171. 1864. (Gradstein & Hekking 1979)
- =Frullania cylindrica f. laevior Gottsche, Ann. Sci. Nat., Bot., sér. 5, 1: 171. 1864. (Stotler 1969)
- =Frullania cylindrica var. lindigii Gottsche, Ann. Sci. Nat., Bot., sér. 5, 1: 171. 1864. (Stotler 1969) ≡Frullania brasiliensis subvar. lindigii (Gottsche) Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 50. 1884.
- =Frullania granatensis Gottsche, Ann. Sci. Nat., Bot., sér. 5, 1: 173. 1864. (Gradstein 2021)
- =Frullania brasiliensis var. robusta Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 51. 1884. (Spruce 1884–1885) ≡Frullania robusta (Spruce) Steph., Sp. Hepat. (Stephani) 4: 505. 1911. (Gradstein & Uribe-M. 2016)
- =Frullania spruceana Steph., Hedwigia 33(3): 160. 1894. (Gradstein & Uribe-M. 2016)
- =Frullania bipinnata Steph., Sp. Hepat. (Stephani) 4: 491. 1911. (Menzel 1984)
- =Frullania cocosensis Steph., Sp. Hepat. (Stephani) 4: 492. 1911. (Stotler 1969)
- =Frullania guadalupensis Gottsche, Sp. Hepat. (Stephani) 4: 496. 1911. (Gradstein & Lavocat Bernard 2020)
- =Frullania lacouturei Steph., Sp. Hepat. (Stephani) 4: 499. 1911. (Stotler 1969)
- =Frullania nigra Steph., Sp. Hepat. (Stephani) 4: 502. 1911. (Stotler 1969)
- =Frullania rufa Steph., Sp. Hepat. (Stephani) 4: 505. 1911. (Stotler 1969)
- =Frullania subcylindrica Steph., Sp. Hepat. (Stephani) 4: 506. 1911. (Stotler 1969)
- =Frullania panamana Steph., Sp. Hepat. (Stephani) 4: 529. 1911. (Stotler 1969)
- =Frullania caracensis Steph., Sp. Hepat. (Stephani) 4: 599. 1911. (Uribe-M. & Gradstein 2003)
- =Frullania capilliformis Steph., Biblioth. Bot. 87: 244. 1916, nom. illeg. (Herzog 1916) ≡Frullania trichomorpha Beauverd, Sp. Hepat. (Stephani) 6: 547. 1924. (Uribe-M. & Gradstein 2003)
- =Frullania goebeliana Steph., Biblioth. Bot. 87: 245. 1916. (Herzog 1916; Uribe-M. & Gradstein 2003)
- =Frullania hastatistipula Steph., Biblioth. Bot. 87: 245. 1916. (Herzog 1916; Uribe-M. & Gradstein 2003)
- =Frullania columbica Steph., Sp. Hepat. (Stephani) 6: 546. 1924. (Gradstein & Uribe-M. 2016)
- =Frullania effusa Steph., Sp. Hepat. (Stephani) 6: 548. 1924. (Uribe-M. & Gradstein 2003)
- =Frullania hondurae Herzog & L. Clark, Bryologist 56(4): 289. 1953. (Stotler 1969)
Frullania brasiliensis Raddi var. brasiliensis
Frullania brasiliensis var. elegantula Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 50. 1884. (Spruce 1884–1885; Söderström et al. 2016)
Frullania breuteliana Gottsche, Syn. Hepat.: 461. 1845. (Gottsche et al. 1844)
- =Frullania connata Lindenb. & Gottsche, Syn. Hepat.: 783. 1847. (Gottsche et al. 1844; Gradstein et al. 2003)
- =Frullania sagittistipula Lindenb. & Gottsche, Syn. Hepat.: 784. 1847. (Gottsche et al. 1844; Gradstein et al. 2003)
- =Frullania sagittistipula var. laxior Lindenb. & Gottsche, Syn. Hepat.: 784. 1847. (Gottsche et al. 1844; Fulford & Sharp 1990)
- =Frullania diffusa Steph., Sp. Hepat. (Stephani) 4: 516. 1911, nom. illeg. (Stotler 1969)
Frullania brevicalycina Steph., Hedwigia 33(3): 141. 1894. (Stephani 1894)
Frullania brittoniae A. Evans, Trans. Connecticut Acad. Arts Sci. 10(1): 15. 1897. (Evans 1897)

≡Frullania muscicola subsp. brittoniae (A. Evans) R.M. Schust. & S. Hatt., J. Hattori Bot. Lab. 49: 165. 1981. (Hattori 1981a)
Frullania brotheri Steph., Hedwigia 33: 150. 1894. (Stephani 1894)
- =Frullania nodulosa var. nipponica S. Hatt. & Kamim., Nat. Sci. Mus. 14: 292. 1943. (Yamada & Iwatsuki 2006)
Frullania brunea (Spreng.) Drège, Flora 26(Beig.): 186. 1843. (Drège 1843)

Basionym: Jungermannia brunea Spreng., Syst. Veg. [Sprengel] 4(2): 325. 1827. (Sprengel 1827b)
Frullania buchtienii Herzog, Beih. Bot. Centralbl., Abt. 2, 61: 573. 1942. (Herzog 1942; Gradstein et al. 2003)
Frullania bullata Steph., Sp. Hepat. (Stephani) 4: 371. 1910. (Stephani 1912)
- =Frullania subplana Gottsche ex Steph., Sp. Hepat. (Stephani) 4: 383. 1910. (Wigginton 2018)
- =Frullania sphaeroflora Steph., Sp. Hepat. (Stephani) 4: 591. 1911. (Wigginton 2018)
Frullania caduca S. Hatt., Bull. Natl. Sci. Mus. Tokyo, B 6: 33. 1980. (Hattori 1980a; Schäfer-Verwimp et al. 2019)
Frullania caespitans Beauverd, Sp. Hepat. (Stephani) 6: 537. 1924. (Stephani 1925)

Replaced synonym: Frullania campanulata Steph., Biblioth. Bot. 87: 242. 1916, nom. illeg. (Herzog 1916)
Frullania calcarata Ångstr., Öfvers. Kongl. Vetensk.-Akad. Förh. 30(5): 137. 1873. (Ångström 1873)
Frullania calcarifera Steph., Hedwigia 26(1): 1. 1887. (Stephani 1887; Hodgetts et al. 2020)

≡Frullania tamarisci var. calcarifera (Steph.) Casares-Gil, Fl. Ibér. Brióf., Hepát.: 698. 1919.
Frullania caldensis Ångstr., Öfvers. Kongl. Vetensk.-Akad. Förh. 33(7): 89. 1876. (Ångström 1876)
Frullania californica (Austin ex Underw.) A. Evans, Trans. Connecticut Acad. Arts Sci. 10(1): 25. 1897. (Evans 1897)

Basionym: Frullania grayana var. californica Austin ex Underw., Bull. Illinois State Lab. Nat. Hist. 2(1): 67. 1884. (Underwood 1884)

≡Frullania asagrayana var. californica (Austin ex Underw.) Pearson, List Canad. Hepat.: 3. 1890.
- =Frullania asagrayana var. alsophila M. Howe, Erythea 2(6): 99. 1894. (Evans 1897)
Frullania campanulata Sande Lac., Ned. Kruidk. Arch. 3(4): 422. 1855. (Sande Lacoste 1855)
Frullania campanulata var. caduca Verd., Ann. Bryol., Suppl. 1: 41. 1930. (Verdoorn 1930a; Söderström et al. 2010)
Frullania campanulata Sande Lac. var. campanulata
Frullania campanulata var. malesiaca (Verd.) S. Hatt., Bull. Natl. Sci. Mus. Tokyo, B 1: 158. 1975. (Hattori 1975b; Söderström et al. 2010)

Basionym: Frullania malesiaca Verd., Ann. Bryol., Suppl. 1: 59. 1930. (Verdoorn 1930a)
Frullania canaliculata Gottsche ex Steph., Sp. Hepat. (Stephani) 4: 391. 1910. (Stephani 1912)
Frullania capensis Gottsche, Syn. Hepat.: 449. 1845. (Gottsche et al. 1844)
- =Frullania multiramosa Steph., Hedwigia 33: 165. 1894. (Wigginton 2018)
- =Frullania rehmannii Steph., Sp. Hepat. (Stephani) 4: 485. 1911. (Wigginton 2018)
Frullania capillaris Steph., Sp. Hepat. (Stephani) 4: 616. 1911. (Stephani 1912)
- =Frullania grandiclava Steph., Sp. Hepat. (Stephani) 4: 676. 1911. (Thouvenot et al. 2011)
Frullania carrii Kamim. & S. Hatt., J. Hattori Bot. Lab. 37: 520. 1973. (Hattori & Kamimura 1973)
- =Frullania carrii var. subcarrii S. Hatt., J. Hattori Bot. Lab. 47: 112. 1980. (Hattori 1980d; Hattori & Piippo 1986)
†Frullania casparyi Grolle, Prace Muz. Ziemi 37: 92. 1985. (Grolle 1985)
- =†Frullania tenella Casp., Schriften Königl. Phys.-Ökon. Ges. Königsberg 27: 5. 1887, nom. illeg. (Caspary 1887; Grolle & Meister 2004)
Frullania catalinae A. Evans, Trans. Connecticut Acad. Arts Sci. 10(1): 11. 1897. (Evans 1897; Mamontov et al. 2020b)
Frullania cataractarum Steph., Sp. Hepat. (Stephani) 4: 657. 1911. (Stephani 1912)
Frullania caucasica Steph., Sp. Hepat. (Stephani) 4: 440. 1910. (Stephani 1912; Mamontov et al. 2024)

Replaced synonym: Frullania tenera Lindb. ex Steph., Acta Soc. Sci. Fenn. 19(12): 144. 1892, nom. illeg. (Brotherus 1892)

≡Frullania eboracensis subsp. caucasica (Steph.) R.M. Schust., Hepat. Anthocerotae N. Amer. 5: 143. 1992. (Schuster 1992)
Frullania caulisequa (Nees) Mont., Ann. Sci. Nat., Bot., sér. 2, 12: 51. 1839. (Montagne 1839a; Winter & Schäfer-Verwimp 2020)

Basionym: Jungermannia caulisequa Nees, Fl. Bras. Enum. Pl. 1: 373. 1833. (Martius et al. 1833)
Frullania cavallii Gola, Ann. Bot. (Rome) 6: 275. 1907. (Gola 1907)
Frullania ceylanica Nees, Syn. Hepat.: 436. 1845. (Gottsche et al. 1844; Daniels & Daniel 2008)

≡Frullania gaudichaudii var. ceylanica (Nees) S. Hatt., J. Hattori Bot. Lab. 47: 104. 1980. (Hattori 1980d; Daniels & Daniel 2008)
Frullania changii S. Hatt. & C. Gao, J. Jap. Bot. 60: 1. 1985. (Hattori & Gao 1985)
Frullania chenii S. Hatt. & P.J. Lin, J. Jap. Bot. 60: 106. 1985. (Hattori & Lin 1985a)
Frullania chevalieri (R.M. Schust.) R.M. Schust., Hepat. Anthocerotae N. Amer. 5: 34. 1992. (Schuster 1992)

Basionym: Neohattoria chevalieri R.M. Schust., J. Hattori Bot. Lab. 33: 289. 1970. (Schuster 1970)

≡Schusterella chevalieri (R.M. Schust.) S. Hatt., Sharp & Mizut., Jap. J. Bot. 20: 331. 1972. (Hattori et al. 1972; Larraín et al. 2018)
- =Neohattoria caledonica R.M. Schust., J. Hattori Bot. Lab. 33: 291. 1970. ≡Schusterella caledonica (R.M. Schust.) S. Hatt., Sharp & Mizut., Jap. J. Bot. 20: 331. 1972. (Hattori et al. 1972) ≡Frullania caledonica (R.M. Schust.) R.M. Schust., Hepat. Anthocerotae N. Amer. 5: 34. 1992, nom. illeg. (Schuster 1992) ≡Frullania neocaledonica J.J. Engel, Novon 9: 344. 1999. (Engel & Merrill 1999; Larraín et al. 2018)
- =Schusterella chevalieri f. integerrima S. Hatt., Bull. Natl. Sci. Mus. Tokyo, B 2: 83. 1976. (Hattori 1976a; Thouvenot et al. 2011)
Frullania chiapasana Steph., Sp. Hepat. (Stephani) 4: 392. 1910. (Stephani 1912)
†Frullania chiapasensis Mamontov & K. Feldberg, Fossil Rec. 28(1): 81. 2025. (Feldberg et al. 2025)
Frullania chilcootiensis Steph., Bot. Jahrb. Syst. 8(2): 98. 1886. (Stephani 1886)
- =Frullania hattoriana J.D. Godfrey & G. Godfrey, J. Hattori Bot. Lab. 48: 321. 1980. (Godfrey & Godfrey 1980; Atwood & Mamontov 2020)
Frullania chilensis Steph., Hedwigia 33: 142. 1894. (Stephani 1894)
- =Frullania decipiens Herzog, Hedwigia 64(1): 8. 1923. (Hässel de Menéndez & Rubies 2009)
Frullania chinlingensis X.J. Li & M.X. Zhang, Acta Bot. Yunnan. 5: 387. 1983. (Li & Zhang 1983; Potemkin et al. 2015)
Frullania chiovendae Gola, Ann. Bot. (Rome) 13(1): 71. 1914. (Gola 1914a)
Frullania chodatii Beauverd, Sp. Hepat. (Stephani) 6: 533. 1924. (Stephani 1925)
Frullania ciliata Lindenb. & Gottsche, Syn. Hepat.: 775. 1847. (Gottsche et al. 1844)
Frullania cinchonae Gottsche, Syn. Hepat. (fasc. 3): 455. 1845. (Gottsche et al. 1844)
Frullania clandestina (Nees & Mont.) Nees, Syn. Hepat.: 457. 1845. (Gottsche et al. 1844; Gradstein & Uribe-M. 2011)

Basionym: Lejeunea clandestina Nees & Mont., Ann. Sci. Nat., Bot., sér. 2, 5(1): 59. 1836. (Nees von Esenbeck & Montagne 1836)
Frullania clarkiae J.J. Atwood & Mamontov, Phytotaxa 383(2): 208. 2018. (Atwood & Mamontov 2018)
Frullania clavata (Hook. f. & Taylor) Taylor ex Gottsche, Lindenb. & Nees, Syn. Hepat.: 428. 1845. (Gottsche et al. 1844)

Basionym: Jungermannia clavata Hook. f. & Taylor, London J. Bot. 4: 88. 1845. (Hooker & Taylor 1845)
- =Frullania cinnamomea Carrington & Pearson, Proc. Linn. Soc. New South Wales, ser. 2, 2(4): 1035. 1888. (Scott & Bradshaw 1985)
Frullania claviloba Steph., Sp. Hepat. (Stephani) 4: 651. 1911. (Stephani 1912)
- =Frullania benguetensis Steph., Sp. Hepat. (Stephani) 4: 652. 1911. (Sukkharak 2018)
Frullania cleistostoma Schiffn. & W. Wollny, Oesterr. Bot. Z. 59: 467. 1909. (Schiffner 1909; Mamontov et al. 2020b)
Frullania clemensiana Verd., Ned. Kruidk. Arch., ser. 3, 42(2): 493. 1932. (Verdoorn 1932c)

≡Steerea clemensiana (Verd.) S. Hatt., Misc. Bryol. Lichenol. 7: 13. 1975. (Hattori 1975g)
- =Steerea mastigophoroides S. Hatt. & Kamim., J. Hattori Bot. Lab. 34: 429. 1971. (Menzel 1988)
Frullania cobrensis Gottsche ex Steph., Hedwigia 33(3): 142. 1894. (Stephani 1894)
Frullania colliculosa von Konrat, Braggins, Hentschel & Heinrichs, Nova Hedwigia 91(3–4): 494. 2010. (von Konrat et al. 2010)
Frullania compacta Gottsche ex Steph., Sp. Hepat. (Stephani) 4: 493. 1911. (Stephani 1912; Schuster 1992)
Frullania complicata Steph., Sp. Hepat. (Stephani) 4: 671. 1911. (Stephani 1912)
Frullania confertiloba Steph., Sp. Hepat. (Stephani) 4: 326. 1910. (Stephani 1912)
- =Frullania bomboizana Steph., Sp. Hepat. (Stephani) 6: 530. 1924. (Yuzawa 1991)
Frullania congesta Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 3): 451. 1845. (Gottsche et al. 1844; von Konrat et al. 2006)

Replaced synonym: Jungermannia congesta Hook. f. & Taylor, London J. Bot. 3: 396. 1844, nom. illeg. (Hooker & Taylor 1844a)

≡Frullania grollei Hamlin, Rec. Domin. Mus. 7: 262. 1972, nom. illeg.
- =Frullania dissitifolia Steph., Sp. Hepat. (Stephani) 4: 659. 1911. (von Konrat et al. 2006)
Frullania conistipula Steph., Sp. Hepat. (Stephani) 4: 399. 1910. (Stephani 1912; Mamontov et al. 2024)
Frullania consociata Steph., Sp. Hepat. (Stephani) 4: 461. 1910. (Stephani 1912)
Frullania contracta Steph., Sp. Hepat. (Stephani) 4: 469. 1911. (Stephani 1912; Hattori 1986b)
Frullania convoluta Lindenb. & Hampe, Linnaea 24: 303. 1851. (Hampe 1851)
- =Frullania longipinna Steph., Sp. Hepat. (Stephani) 4: 534. 1911. (Uribe-M. 2008)
- =Frullania herzogiana Steph., Biblioth. Bot. 87: 246. 1916, nom. illeg. (Herzog 1916) ≡Frullania controversa Beauverd, Sp. Hepat. (Stephani) 6: 549. 1924. (Uribe-M. 2008)
- =Frullania convoluta var. ampliata Herzog, Rev. Bryol. Lichénol. 20(1–2): 129. 1951[1952]. (Söderström et al. 2023)
Frullania cordaeana Lindenb., Syn. Hepat. (fasc. 3): 463. 1845. (Gottsche et al. 1844)
Frullania cordistipula (Reinw., Blume & Nees) Nees, Voy. Amér. Mér. 7(2): 68. 1839. (Montagne 1839b)

Basionym: Jungermannia cordistipula Reinw., Blume & Nees, Nova Acta Phys.-Med. Acad. Caes. Leop.-Carol. Nat. Cur. 12: 220. 1825. (Reinwardt et al. 1824; Söderström et al. 2010)
- =Frullania cordistipula var. tahitica Gottsche, J. Bot. (Morot) 12: 137. 1898. (Bescherelle 1898)
- =Frullania solmsiana Steph., Sp. Hepat. (Stephani) 4: 541. 1911. (Söderström et al. 2010)
Frullania cordistipula (Reinw., Blume & Nees) Nees var. cordistipula
Frullania cordistipula var. dentistipula S. Hatt., J. Hattori Bot. Lab. 60: 242. 1986. (Hattori 1986c; Akiyama 2009)
Frullania cordistipula var. mutica (Gottsche, Lindenb. & Nees) Schiffn., Consp. Hepat. Arch. Ind.: 323. 1898. (Schiffner 1898; Söderström et al. 2016)

Basionym: Frullania cordistipula f. mutica Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 3): 454. 1845. (Gottsche et al. 1844)
Frullania cordistipula var. regularis (Nees) Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 3): 454. 1845. (Gottsche et al. 1844; Söderström et al. 2010)

Basionym: Jungermannia cordistipula var. regularis Nees, Enum. Pl. Crypt. Jav.: 49. 1830. (Nees von Esenbeck 1830)
Frullania cornuta Steph., Sp. Hepat. (Stephani) 4: 467. 1911. (Stephani 1912)
- =Frullania cornuta f. undulosa S. Hatt., J. Hattori Bot. Lab. 57: 411. 1984. (Hattori 1984c)
Frullania cranialis (Hook. f. & Taylor) Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 3): 419. 1845. (Gottsche et al. 1844; Pócs 2008)

Basionym: Jungermannia cranialis Hook. f. & Taylor, London J. Bot. 4: 86. 1845. (Hooker & Taylor 1845)
Frullania crassissima J.J. Engel, von Konrat & Glenny, Acta Biol. Pl. Agr. 11(1): 251. 2023. (Engel et al. 2023)
Frullania crassitexta Steph., Sp. Hepat. (Stephani) 4: 423. 1910. (Stephani 1912; Renner et al. 2024)
Frullania crawfordii Steph., Hedwigia 33(3): 143. 1894. (Stephani 1894)
Frullania crenatiloba Steph., Sp. Hepat. (Stephani) 6: 551. 1924. (Stephani 1925; So & Wang 2006)
- =Frullania hawaiiensis H.A. Mill., Bryologist 56(1): 41. 1953. (So & Wang 2006)
†Frullania cretacea Hentschel, A.R. Schmidt & Heinrichs, Cryptog., Bryol. 30: 326. 2009. (Hentschel et al. 2009)
Frullania crispiloba Steph., Hedwigia 33: 156. 1894. (Stephani 1894)
Frullania crispiplicata Yuzawa & S. Hatt., J. Jap. Bot. 58: 43. 1983. (Yuzawa & Hattori 1983)
Frullania cristata S. Hatt., J. Hattori Bot. Lab. 49: 165. 1981. (Hattori 1981a)
Frullania cuencensis Taylor, London J. Bot. 5: 406. 1846. (Taylor 1846)
- =Frullania boliviana Spruce, Mem. Torrey Bot. Club 1: 118. 1890. (Gradstein et al. 2003)
- =Frullania pehlkeana Steph., Sp. Hepat. (Stephani) 4: 340. 1910. (Yuzawa 1991)
- =Frullania parva Steph., Sp. Hepat. (Stephani) 6: 534. 1924. (Yuzawa 1991)
- =Frullania subcordistipula Steph., Sp. Hepat. (Stephani) 6: 534. 1924. (Yuzawa 1991)
Frullania cuneatistipula Steph., Sp. Hepat. (Stephani) 6: 538. 1924. (Stephani 1925)
Frullania cuneiloba Nees, Syn. Hepat. (fasc. 3): 427. 1845. (Gottsche et al. 1844)
Frullania curvilobula Schäf.-Verw., D.F. Peralta & S.M. Siqueira, Phytotaxa 57: 27. 2012. (Schäfer-Verwimp et al. 2012)
Frullania curviramea Steph., Sp. Hepat. (Stephani) 4: 684. 1911. (Stephani 1912)
Frullania curvistipula Steph., Sp. Hepat. (Stephani) 4: 548. 1911. (Stephani 1912)
- =Frullania bambusana Steph., Sp. Hepat. (Stephani) 6: 552. 1924. (Hattori & Piippo 1986)
- =Frullania pycnophylla S. Hatt., J. Hattori Bot. Lab. 37: 60. 1973. (Hattori & Piippo 1986)
Frullania curvistipula Steph. var. curvistipula
Frullania curvistipula var. falcatidentata S. Hatt., Misc. Bryol. Lichenol. 9: 124. 1982. (Hattori 1982e; Hattori & Piippo 1986)
Frullania curvistipula var. lamii Verd., Nova Guinea 14: 543. 1930. (Verdoorn 1930b; Hattori 1988b)
Frullania cuspidifolia Steph., Sp. Hepat. (Stephani) 4: 543. 1911. (Stephani 1912)
Frullania cuspiloba Steph., Sp. Hepat. (Stephani) 4: 394. 1910. (Stephani 1912)
Frullania cyparioides (Schwägr.) Nees, Naturgesch. Eur. Leberm. 3: 210. 1838. (Nees von Esenbeck 1838)

Basionym: Jungermannia cyparioides Schwägr., Hist. Musc. Hepat. Prodr. (Schwägrichen): 14. 1814. (Schwägrichen 1814)
Frullania darwinii Gradst. & Uribe, Cryptog., Bryol. 25: 296. 2004. (Uribe-M. 2004)
Frullania dasyueshanensis Schäf.-Verw. & Gerh. Winter, Frahmia 20: 2. 2020. (Schäfer-Verwimp & Winter 2020)
Frullania davurica Hampe ex Gottsche, Lindenb. & Nees, Syn. Hepat.: 422. 1845. (Gottsche et al. 1844)
- =Frullania japonica Sande Lac., Ann. Mus. Bot. Lugduno-Batavi 1: 131. 1863. (Yamada & Iwatsuki 2006) ≡Frullania jackii subsp. japonica (Sande Lac.) S. Hatt., J. Hattori Bot. Lab. 21: 128. 1959.
- =Frullania rotundistipula Steph., Mém. Soc. Sci. Nat. Math. Cherbourg 29: 213. 1894. (Hattori & Lin 1985b)
- =Frullania microta C. Massal., Mem. Accad. Verona 73(2): 42. 1897. (Yamada & Iwatsuki 2006)
- =Frullania jishibae Steph., Sp. Hepat. (Stephani) 6: 540. 1924. (Yamada & Iwatsuki 2006)
- =Frullania sawadae Steph., Sp. Hepat. (Stephani) 6: 543. 1924. (Hattori & Lin 1985b)
- =Frullania japonica subsp. emarginata Kamim., Contr. Fl. Hepat. Shikoku.: 125. 1952. (Hattori & Lin 1985b)
- =Frullania jackii var. chichibuensis Kamim., J. Hattori Bot. Lab. 24: 53. 1961. (Yamada & Iwatsuki 2006) ≡Frullania davurica var. chichibuensis (Kamim.) S. Hatt., Bull. Natl. Sci. Mus. Tokyo, B 2(1): 21. 1976.
Frullania davurica var. concava K.C. Chang, Fl. Hepat. Chin. Boreali-Orient.: 208. 1981. (Gao & Chang 1981; Piippo 1990)
Frullania davurica Hampe ex Gottsche, Lindenb. & Nees f. davurica
Frullania davurica Hampe ex Gottsche, Lindenb. & Nees var. davurica
Frullania davurica f. dorsoblastos (S. Hatt.) S. Hatt. & P.J. Lin, J. Hattori Bot. Lab. 59: 132. 1985. (Hattori & Lin 1985b; Jia et al. 2016)

Basionym: Frullania dorsoblastos S. Hatt., Bull. Natl. Sci. Mus. Tokyo, B 8: 93. 1982. (Hattori 1982a; Hattori & Lin 1985b)
Frullania davurica f. microphylla (C. Massal.) S. Hatt. & P.J. Lin, J. Hattori Bot. Lab. 59: 133. 1985. (Hattori & Lin 1985b; Jia et al. 2016)

Basionym: Frullania microta var. microphylla C. Massal., Mem. Accad. Verona 73(2): 43. 1897. (Massalongo 1897)
Frullania debilis Steph. ex S. Hatt., J. Hattori Bot. Lab. 38: 190. 1974. (Hattori 1974c)
Frullania decidua Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 30. 1884. (Spruce 1884–1885; Gradstein 2021)
- =Frullania flammea Taylor, Trans. & Proc. Bot. Soc. Edinburgh 15: 29. 1884. (Gradstein 2021)
- =Frullania rioblancana Steph., Sp. Hepat. (Stephani) 4: 343. 1910. (Gradstein et al. 2003)
Frullania deflexa Mitt., Bonplandia (Hannover) 10: 19. 1862. (Mitten 1862)
- =Frullania pendula Austin, Bull. Torrey Bot. Club 3(3): 16. 1872, nom. illeg. (Austin 1872; Söderström et al. 2011b)
Frullania degelii S.W. Arnell, Svensk Bot. Tidskr. 53(4): 503. 1959. (Arnell 1959)
†Frullania delgadilloi Juárez-Mart. & Estrada-Ruiz, J. S. Amer. Earth Sci. 137(104858): 4. 2024. (Juárez-Martínez et al. 2024)
Frullania densiloba Steph. ex A. Evans, Proc. Wash. Acad. Sci. 8: 157. 1906. (Evans 1906)
Frullania dentata S. Hatt., J. Hattori Bot. Lab. 38: 231. 1974. (Hattori 1974d)
Frullania dentata S. Hatt. var. dentata
Frullania dentata var. secernens S. Hatt., J. Hattori Bot. Lab. 65: 422. 1988. (Hattori 1988b; Söderström et al. 2016)
Frullania dentifera S. Hatt. & Streimann, J. Hattori Bot. Lab. 59: 102. 1985. (Hattori & Streimann 1985)
Frullania dentiloba S. Hatt., J. Jap. Bot. 6: 161. 1975. (Hattori 1975e)
Frullania deplanata Mitt., Fl. Nov.-Zel. 2: 161. 1855. (Hooker 1855)
- =Frullania scabriseta Colenso, Trans. & Proc. New Zealand Inst. 19: 298. 1887. (Colenso 1887; Hamlin 1972)
- =Frullania implexicaulis Colenso, Trans. & Proc. New Zealand Inst. 19: 299. 1887. (Colenso 1887; Hamlin 1972)
- =Frullania curnowii Steph., Sp. Hepat. (Stephani) 4: 409. 1910. (Hamlin 1972)
- =Frullania grayana Steph., Sp. Hepat. (Stephani) 6: 539. 1924, nom. illeg. (Scott & Bradshaw 1985)
Frullania deppii Lehm., Nov. Stirp. Pug. 8: 15. 1844. (Lehmann 1844)
Frullania depressa Mitt., J. Proc. Linn. Soc., Bot. 7: 168. 1864. (Mitten 1863)
- =Frullania traversiana Steph., Sp. Hepat. (Stephani) 4: 325. 1910. (Wigginton 2018)
- =Frullania erronea Steph., Sp. Hepat. (Stephani) 4: 672. 1911. (Wigginton 2018)
- =Frullania sylvestris Sim, Trans. Roy. Soc. South Africa 15: 40. 1926, nom. illeg. (Sim 1926; Wigginton 2018)
- =Frullania natalensis Sim, Trans. Roy. Soc. South Africa 15: 44. 1926. (Sim 1926; Wigginton 2018)
Frullania dilatata (L.) Dumort., Recueil Observ. Jungerm.: 13. 1835. (Dumortier 1835)

Basionym: Jungermannia dilatata L., Sp. Pl.: 1133. 1753. (Linnaeus 1753; Damsholt 2002)

≡Salviatus dilatatus (L.) Gray, Nat. Arr. Brit. Pl. 1: 688. 1821. ≡Lejeunea dilatata (L.) Corda, Naturalientausch 12 [Opiz, Beitr. Naturgesch.]: 652. 1829. ≡Jubula dilatata (L.) Dumort., Syll. Jungerm. Europ.: 36. 1831. (Dumortier 1831)
- =Jungermannia cupressiformis Lam., Encycl. 3(1): 283. 1789, nom. illeg. (Lamarck 1789; Schumacker & Váňa 2005)
- =Jungermannia tamariscifolia Schmidel ex Schrad., Syst. Samm. Cryptog. Gew. 2: 6. 1797, nom. illeg. (Hooker 1816)
- =Jungermannia dilatata var. microphylla Wallr., Fl. Crypt. Germ. 1: 79. 1831. ≡Frullania dilatata f. microphylla (Wallr.) Nees, Naturgesch. Eur. Leberm. 3: 219. 1838. ≡Frullania dilatata var. microphylla (Wallr.) Debat, Fl. Musc.: 231. 1874. (Paton 1999)
- =Frullania dilatata f. macrotus Nees, Naturgesch. Eur. Leberm. 3: 219. 1838. (Trabut 1942)
- =Frullania dilatata f. subtilissima Nees, Naturgesch. Eur. Leberm. 3: 219. 1838. (Ștefănuț 2008) ≡Frullania dilatata var. subtilissima (Nees) Debat, Fl. Musc.: 231. 1874.
- =Frullania dilatata var. viridis De Not., Mem. Reale Accad. Sci. Torino, ser. 2, 22: 376. 1865. (Massalongo 1912)
- =Frullania dilatata var. lusitanica Steph., Hedwigia 26(1): 2. 1887. (Stephani 1887; Sim-Sim 1999)
- =Frullania dilatata var. anomala Corb., Mém. Soc. Sci. Nat. Math. Cherbourg 26: 343. 1889. (Ros et al. 2007)
- =Frullania dilatata var. briziana C. Massal., Nuovo Giorn. Bot. Ital. 21: 519. 1889. (Ros et al. 2007)
- =Frullania dilatata f. tenuissima Matousch., Ber. Naturwiss.-Med. Vereins Innsbruck 28: 38. 1903. (Matouschek 1903)
- =Frullania dilatata f. major Torka, Z. Naturwiss. Abt. Deutsch. Ges. Kunst Posen 12(Bot. 1): 4. 1905. (Torka 1905)
- =Frullania trabutiana Steph., Sp. Hepat. (Stephani) 4: 368. 1910. (Ros et al. 2007)
- =Frullania dilatata f. fuscovirens Jørg., Bergens Mus. Skr. 16: 332. 1934. (Jørgensen 1934)
Frullania dioica (S. Hatt. & Thaithong) Mamontov & J.J. Atwood, Nova Hedwigia Beih. 150: 220. 2020. (Mamontov et al. 2020b)

Basionym: Frullania inflata var. dioica S. Hatt. & Thaithong, J. Hattori Bot. Lab. 44: 185. 1978. (Hattori & Thaithong 1978c; Mamontov et al. 2020b)
Frullania diptera (Lehm.) Drège, Flora 26(Beig.): 186. 1843. (Drège 1843)

Basionym: Jungermannia diptera Lehm., Linnaea 9: 425. 1835. (Lehmann 1835)
- =Frullania inflatiloba Steph., Sp. Hepat. (Stephani) 4: 378. 1910. (Wigginton 2018)
Frullania dispar Nees, Syn. Hepat. (fasc. 3): 429. 1845. (Gottsche et al. 1844)
Frullania diversitexta Steph., Bull. Herb. Boissier 5: 89. 1897. (Stephani 1897b)
- =Frullania abducens Steph., Sp. Hepat. (Stephani) 4: 396. 1910. (Yamada & Iwatsuki 2006)
- =Frullania tenella Steph., Sp. Hepat. (Stephani) 4: 397. 1910, nom. illeg. ≡Frullania tosana Horik., Acta Phytotax. Geobot. 13: 213. 1943. (Yamada & Iwatsuki 2006)
- =Frullania sendaica Steph., Sp. Hepat. (Stephani) 6: 552. 1924. (Yamada & Iwatsuki 2006)
Frullania donnellii Austin, Bull. Torrey Bot. Club 6(52): 301. 1879. (Austin 1879)
Frullania dorsimamillosa Mamontov, Hentschel, Sofronova & Potemkin, Phytotaxa 227(1): 5. 2015. (Potemkin et al. 2015)
Frullania dulimensis Uribe, Cryptog., Bryol. 27: 309. 2006. (Uribe-M. 2006)
Frullania durifolia Steph., Hedwigia 33(3): 162. 1894. (Stephani 1894)
Frullania dusenii Steph., Arch. Mus. Nac. Rio de Janeiro 13: 115. 1903. (Dusén 1903)
- =Frullania transfalcicula L. Clark & Svihla, Bryologist 53(1): 70. 1950. (Gradstein & Uribe-M. 2016)
Frullania duthieana Steph., Sp. Hepat. (Stephani) 4: 351. 1910. (Stephani 1912)
Frullania duthieana var. appendiculata S. Hatt., Fl. E. Himalaya 2: 234. 1971. (Hattori 1971; Long & Grolle 1990)
Frullania duthieana Steph. var. duthieana
Frullania duthieana var. laevis S. Hatt., Fl. E. Himalaya 3: 233. 1975. (Hattori 1975d; Bapna & Kachroo 2000)
Frullania duthieana var. szechuanensis S. Hatt. & C. Gao, J. Jap. Bot. 60: 1. 1985. (Hattori & Gao 1985; Piippo 1990)
Frullania eboracensis Lehm., Nov. Stirp. Pug. 8: 14. 1844. (Lehmann 1844)

≡Lejeunea eboracensis (Lehm.) H.C. Beardslee, Cat. Pl. Ohio: 19. 1874.
- =Frullania eboracensis var. major Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 3): 423. 1845. (Gottsche et al. 1844)
- =Frullania saxatilis Lindenb., Syn. Hepat. (fasc. 3): 424. 1845. (Gottsche et al. 1844; Evans 1897)
- =Frullania microscypha Taylor, London J. Bot. 5: 402. 1846. (Taylor 1846; Schuster 1992)
- =Frullania laeviscypha Taylor, London J. Bot. 5: 403. 1846. (Taylor 1846; Schuster 1992)
- =Frullania nana Taylor, London J. Bot. 5: 404. 1846. (Taylor 1846; Schuster 1992)
Frullania echinantha S. Hatt., J. Hattori Bot. Lab. 38: 233. 1974. (Hattori 1974d)
Frullania echinatella S. Hatt., J. Hattori Bot. Lab. 65: 423. 1965. (Hattori 1988b)
Frullania ecklonii (Spreng.) Gottsche, Lindenb. & Nees, Syn. Hepat.: 413. 1845. (Gottsche et al. 1844; Wigginton 2018)

Basionym: Jungermannia ecklonii Spreng., Syst. Veg. [Sprengel] 4(2): 324. 1827. (Sprengel 1827b)
- =Frullania ecklonii var. huitamalcensis Gottsche, Mexik. Leverm.: 236 (332). 1863. (Fulford & Sharp 1990)
- =Frullania emergens Mitt., J. Proc. Linn. Soc., Bot. 7: 168. 1863. (Wigginton 2018)
- =Frullania viminicola Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 21. 1884. (Spruce 1884–1885; Gradstein & Uribe-M. 2016)
- =Frullania viminicola var. bicolor Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 21. 1884. (Spruce 1884–1885; Winter 2020)
- =Frullania longirostris Steph., Bot. Jahrb. Syst. 20: 314. 1895. (Wigginton 2018)
- =Frullania crassa Herzog, Hedwigia 64(1): 7. 1923. (Hässel de Menéndez & Rubies 2009)
Frullania ecklonii (Spreng.) Gottsche, Lindenb. & Nees var. ecklonii
Frullania ecklonii var. robustior (Gottsche, Lindenb. & Nees) Sim, Trans. Roy. Soc. South Africa 15(1): 39. 1926. (Sim 1926; Söderström et al. 2016)

Basionym: Frullania ecklonii f. robustior Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 5): 771. 1847. (Gottsche et al. 1844)
Frullania ecklonii var. rufescens Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 5): 771. 1847. (Gottsche et al. 1844; Söderström et al. 2016)
Frullania ecklonii var. tenerior (Gottsche, Lindenb. & Nees) Sim, Trans. Roy. Soc. South Africa 15(1): 39. 1926. (Sim 1926; Söderström et al. 2016)

Basionym: Frullania ecklonii f. tenerior Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 5): 771. 1847. (Gottsche et al. 1844)
†Frullania ekaterinae Mamontov, Ignatov & Perkovsky, Paleontol. J. 53(10): 1096. 2019[2020]. (Mamontov et al. 2019)
Frullania elegans Lehm., Nov. Stirp. Pug. 10: 16. 1857. (Lehmann 1857)
Frullania elephantum S. Hatt., J. Hattori Bot. Lab. 43: 416. 1977. (Hattori 1977a)
Frullania epiphylla S. Hatt., J. Hattori Bot. Lab. 38: 235. 1974. (Hattori 1974d)
Frullania epiphylla S. Hatt. subsp. epiphylla
Frullania epiphylla subsp. fijiensis S. Hatt., Bull. Natl. Sci. Mus. Tokyo, B 11: 14. 1985. (Hattori 1985; Söderström et al. 2011b)
Frullania eplicata Steph., Sp. Hepat. (Stephani) 4: 679. 1911. (Stephani 1912)
- =Frullania platyflora Pearson, Natuurw. Tijdschr., Antwerp 4(5–6): 118. 1922. (Wigginton 2018)
Frullania ericoides (Nees) Mont., Ann. Sci. Nat., Bot., sér. 2, 12(1): 51. 1839. (Montagne 1839a)

Basionym: Jungermannia ericoides Nees, Fl. Bras. Enum. Pl. 1: 346. 1833. (Martius et al. 1833)

≡Lejeunea ericoides (Nees) Nees & Mont., Ann. Sci. Nat., Bot., sér. 2, 5: 64. 1836. (Nees von Esenbeck & Montagne 1836) ≡Frullania squarrosa var. ericoides (Nees) Schiffn., Oesterr. Bot. Z. 49(11): 391. 1899. ≡Frullania squarrosa f. ericoides (Nees) Verd., Ann. Bryol. 2: 134. 1929.
- =Jungermannia squarrosa Reinw., Blume & Nees, Nova Acta Phys.-Med. Acad. Caes. Leop.-Carol. Nat. Cur. 12: 219. 1825, nom. illeg. ≡Frullania ericoides var. squarrosa Nees ex Mont., Ann. Sci. Nat., Bot., sér. 2, 12: 51. 1839. (Montagne 1839a) ≡Frullania squarrosa (Nees ex Mont.) Nees, Syn. Hepat.: 416. 1845. (Stotler & Crandall-Stotler 2017)
- =Jungermannia lagenifera Schwägr., Voy. Uranie: 217. 1828. (Gaudichaud-Beaupré 1826) ≡Frullania lagenifera (Schwägr.) Gottsche, Lindenb. & Nees, Syn. Hepat.: 420. 1845. (Hattori 1981b)
- =Jungermannia tuberculata Lehm., Linnaea 9: 423. 1835. (Wigginton 2018)
- =Frullania aeolotis Mont. & Nees, Hist. Phys. Cuba, Bot., Pl. Cell.: 461. 1842. (Bardat et al. 2021)
- =Frullania aeolotis var. auriculata Mont., Hist. Phys. Cuba, Bot., Pl. Cell.: 462. 1842, nom. illeg. (Söderström et al. 2010)
- =Frullania aeolotis var. evoluta Mont., Hist. Phys. Cuba, Bot., Pl. Cell.: 462. 1842. (Montagne 1842b)
- =Frullania laciniosa Lehm., Nov. Stirp. Pug. 8: 18. 1844. (Söderström et al. 2010)
- =Frullania squarrosa var. laevior Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 5): 772. 1847. (Gottsche et al. 1844)
- =Frullania squarrosa var. laxa Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 5): 772. 1847. (Gottsche et al. 1844)
- =Frullania squarrosa var. vulgaris Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 5): 772. 1847. (Gottsche et al. 1844)
- =Frullania squarrosa var. muelleri Gottsche, Mexik. Leverm.: 238 (334). 1863. (Gottsche 1863)
- =Frullania usagara Mitt., J. Linn. Soc., Bot. 22: 326. 1886. (Mitten 1886; Wigginton 2018)
- =Frullania julacea Spruce, Bull. Soc. Bot. France 36(Suppl. Congrés Bot. 1889): CXC. 1889[1890]. (Spruce 1889; Gradstein & Costa 2003)
- =Frullania tatanarivensis Steph., Hedwigia 33: 148. 1894. (Wigginton 2018)
- =Frullania welwitschii Steph., Cat. Afr. Pl. 2(2): 316. 1901. (Wigginton 2018)
- =Frullania symmetrica Steph., Rev. Bryol. 35(2): 29. 1908. (Thouvenot et al. 2011)
- =Frullania faurieana Steph., Denkschr. Kaiserl. Akad. Wiss., Wien Math.-Naturwiss. Kl. 85: 196. 1910, nom. illeg. ≡Frullania novopommeriensis H.A. Mill., Phytologia 47: 322. 1981. (Miller 1981; Hattori & Piippo 1986)
- =Frullania bangiensis Steph., Sp. Hepat. (Stephani) 4: 372. 1910. (Wigginton 2018)
- =Frullania armatistipula Steph., Sp. Hepat. (Stephani) 4: 378. 1910. (Wigginton 2018)
- =Frullania allionii Steph., Sp. Hepat. (Stephani) 4: 394. 1910. (Gradstein 2021)
- =Frullania luzonensis Steph., Sp. Hepat. (Stephani) 4: 447. 1910. (Söderström et al. 2010)
- =Frullania feana Steph., Sp. Hepat. (Stephani) 4: 452. 1910. (Sukkharak 2018)
- =Frullania longispica Steph., Sp. Hepat. (Stephani) 4: 454. 1910. (Thouvenot et al. 2011)
- =Frullania vesiculosa Steph., Sp. Hepat. (Stephani) 4: 457. 1910. (Söderström et al. 2011b)
- =Frullania birmensis Steph., Sp. Hepat. (Stephani) 4: 459. 1910. (Sukkharak 2018)
- =Frullania biroana Steph., Sp. Hepat. (Stephani) 4: 459. 1910. (Hattori & Piippo 1986)
- =Frullania symmetrica Steph., Sp. Hepat. (Stephani) 4: 462. 1910, nom. illeg. (Thouvenot et al. 2011)
- =Frullania fleischeri Steph., Sp. Hepat. (Stephani) 4: 463. 1910. (Thouvenot et al. 2011)
- =Frullania javanica Steph., Sp. Hepat. (Stephani) 4: 464. 1910. (Söderström et al. 2010)
- =Frullania nymanii Steph., Sp. Hepat. (Stephani) 4: 464. 1911. (Söderström et al. 2010)
- =Frullania pruniflora Steph., Sp. Hepat. (Stephani) 4: 465. 1911. (Sukkharak 2018)
- =Frullania rotundiloba Steph., Sp. Hepat. (Stephani) 4: 679. 1911. (Sukkharak 2018)
- =Frullania ocanniensis Steph., Sp. Hepat. (Stephani) 6: 542. 1924. (Gradstein 2021)
- =Frullania subnigra Steph., Sp. Hepat. (Stephani) 6: 544. 1924. (Sukkharak 2018)
- =Frullania squarrosa var. planescens Verd., Ann. Bryol. 2: 134. 1929. ≡Frullania ericoides var. planescens (Verd.) S. Hatt., J. Hattori Bot. Lab. 57: 412. 1984. (Hattori 1984c; Söderström et al. 2010)
- =Frullania squarrosa f. campanuloides Verd., Ann. Bryol., Suppl. 1: 38. 1930. (Söderström et al. 2010)
- =Frullania squarrosa f. chonanthelioides Verd., Ann. Bryol., Suppl. 1: 40. 1930. (Söderström et al. 2010)
- =Frullania sehnemii Luisier & Herzog, Brotéria, Ci. Nat. 6: 18. 1937. (Gradstein & Costa 2003) ≡Frullania glomerata var. sehnemii (Luisier & Herzog) Herzog, Feddes Repert. Spec. Nov. Regni Veg. 55(1): 10. 1952.
- =Frullania hamatirostra Gerola, Lav. Bot. Ist. Bot. Univ. Padova 12: 476. 1947. (Wigginton 2018)
- =Frullania hamatirostra f. evoluta Gerola, Lav. Bot. Ist. Bot. Univ. Padova 12: 477. 1947. (Wigginton 2018)
- =Frullania dilatata var. elongata Losada-Lima & Vanden Berghen, Vieraea 15: 4. 1985. (Losada-Lima & Vanden Berghen 1985; Schumacker & Váňa 2005)
Frullania ericoides (Nees) Mont. var. ericoides
Frullania ericoides var. laxa Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 3): 417. 1845. (Gottsche et al. 1844; Söderström et al. 2016)
Frullania ericoides var. minor Kamim., Bull. Kochi Gakuen Junior Coll. 2: 22. 1971. (Kamimura 1971; Söderström et al. 2016)
Frullania ericoides var. verrucosa (Kamim.) Hentschel & von Konrat, Phytotaxa 220(2): 134. 2015. (Hentschel et al. 2015; Söderström et al. 2016)

Basionym: Frullania squarrosa var. verrucosa Kamim., J. Hattori Bot. Lab. 24: 19. 1961. (Kamimura 1961)
Frullania erostrata S. Hatt., J. Hattori Bot. Lab. 38: 237. 1974. (Hattori 1974d)
Frullania errans Verd., Ann. Bryol., Suppl. 1: 59. 1930. (Verdoorn 1930a)
Frullania errans var. angulistipula S. Hatt., J. Hattori Bot. Lab. 36: 431. 1972[1973]. (Hattori 1972c; Hattori & Piippo 1986)
Frullania errans Verd. var. errans
Frullania esenbeckiana Beauverd, Sp. Hepat. (Stephani) 6: 570. 1924. (Stephani 1925)

Replaced synonym: Frullania grossiloba Steph., Sp. Hepat. (Stephani) 4: 531. 1911, nom. illeg. (Stephani 1912)
Frullania evansii Steph., Sp. Hepat. (Stephani) 4: 634. 1911. (Stephani 1912; Hattori 1972b)
Frullania evelynae S. Hatt. & Thaithong, J. Hattori Bot. Lab. 44: 179. 1978. (Hattori & Thaithong 1978c)
Frullania evelynae var. devendrae Sushil K. Singh & Barbhuiya, Taiwania 57(2): 109. 2012. (Singh & Barbhuiya 2012)
Frullania evelynae S. Hatt. & Thaithong var. evelynae
Frullania evelynae var. srivastavae Sushil K. Singh & Barbhuiya, Taiwania 57(2): 112. 2012. (Singh & Barbhuiya 2012)
Frullania evoluta Mitt., J. Proc. Linn. Soc., Bot. 5: 122. 1861. (Mitten 1861)
Frullania eymae S. Hatt., J. Hattori Bot. Lab. 39: 284. 1974. (Hattori 1975f)
- =Frullania eymae var. dentistipula S. Hatt., J. Hattori Bot. Lab. 44: 527. 1978. (Hattori 1978; Hattori & Piippo 1986)
Frullania eymae var. crispidentata S. Hatt. & Streimann, J. Hattori Bot. Lab. 59: 105. 1985. (Hattori & Streimann 1985; Hattori 1988b)
Frullania eymae S. Hatt. var. eymae
Frullania falciloba Lehm., Nov. Stirp. Pug. 8: 20. 1844. (Lehmann 1844)

≡Jungermannia falciloba (Lehm.) Hook. f. & Taylor, London J. Bot. 3: 581. 1844.
- =Frullania delicatula Colenso, Trans. & Proc. New Zealand Inst. 19: 297. 1887. (Colenso 1887; Hamlin 1972)
- =Frullania minutissima Colenso, Trans. & Proc. New Zealand Inst. 19: 298. 1887. (Colenso 1887; Hamlin 1972)
- =Frullania colensoana Steph., Sp. Hepat. (Stephani) 4: 405. 1910. (Hamlin 1972)
- =Frullania falcata Steph., Sp. Hepat. (Stephani) 4: 410. 1910.
- =Frullania forsythiana Steph., Sp. Hepat. (Stephani) 4: 419. 1910. (Scott & Bradshaw 1985)
- =Frullania mooreana Steph., Sp. Hepat. (Stephani) 4: 422. 1910. (Scott & Bradshaw 1985)
- =Frullania wattsiana Steph., Sp. Hepat. (Stephani) 4: 559. 1911. (Scott & Bradshaw 1985)
- =Frullania asperifolia Steph., J. & Proc. Roy. Soc. New South Wales 48(1–2): 105. 1914. (Scott & Bradshaw 1985)
- =Frullania excisula Steph., J. & Proc. Roy. Soc. New South Wales 48(1–2): 107. 1914. (Brown et al. 1992)
- =Frullania knightiana Steph., Sp. Hepat. (Stephani) 6: 542. 1924. (Scott & Bradshaw 1985)
- =Frullania binominata Steph., Sp. Hepat. (Stephani) 6: 545. 1924. (Scott & Bradshaw 1985)
Frullania fallax Gottsche, Syn. Hepat. (fasc. 3): 432. 1845. (Gottsche et al. 1844; Hattori 1980c)
- =Frullania fallax Gottsche ex Steph., Sp. Hepat. (Stephani) 4: 577. 1911, nom. illeg. (Verdoorn 1930a)
Frullania falsicornuta S. Hatt., J. Hattori Bot. Lab. 60: 212. 1986. (Hattori 1986b)
Frullania faurieana Steph., Hedwigia 33: 144. 1894. (Stephani 1894; Furuki & Mizutani 1994)
- =Frullania faurieana f. emarginata Kamim., Acta Phytotax. Geobot. 14: 109. 1952. (Kamimura 1952)
Frullania fengyangshanensis R.L. Zhu & M.L. So, Bryologist 100: 356. 1997. (Zhu & So 1997)
Frullania ferdinandi-muelleri Steph., Sp. Hepat. (Stephani) 4: 417. 1910. (Stephani 1912)
Frullania fertilis De Not., Jungerm. Amer. Pug.: 29. 1855. (De Notaris 1855)
- =Frullania fertilis var. major C. Massal., Nuovo Giorn. Bot. Ital. 17(3): 246. 1885. (Hässel de Menéndez & Rubies 2009)
- =Frullania magellanica var. diminutiva Herzog, Arch. Esc. Fárm. Fac. Ci. Méd. Córdoba 7: 29. 1938. (Hentschel et al. 2015)
Frullania flexuosa S. Hatt., J. Hattori Bot. Lab. 54: 146. 1983. (Hattori 1983; Renner et al. 2024)
Frullania formosa Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 46. 1884. (Spruce 1884–1885)
Frullania fragilifolia (Taylor) Gottsche, Lindenb. & Nees, Syn. Hepat.: 437. 1845. (Gottsche et al. 1844)

Basionym: Jungermannia fragilifolia Taylor, Ann. Mag. Nat. Hist. 12: 172. 1843. (Taylor 1843)
Frullania franciscana M. Howe, Erythea 2(6): 99. 1894. (Howe 1894)
Frullania fuegiana Steph., Sp. Hepat. (Stephani) 4: 428. 1910. (Stephani 1912)
Frullania fugax (Hook. f. & Taylor) Gottsche, Lindenb. & Nees, Syn. Hepat.: 445. 1845. (Gottsche et al. 1844)

Basionym: Jungermannia fugax Hook. f. & Taylor, London J. Bot. 4: 87. 1845. (Hooker & Taylor 1845)
- =Frullania yorkiana Steph., Sp. Hepat. (Stephani) 4: 558. 1911. (Hentschel et al. 2015)
Frullania fukuzawana Steph. ex Mamontov, J.J. Atwood & Vilnet, Plants 13(17, 2397): 34. 2024. (Mamontov et al. 2024)
Frullania fulfordiae S. Hatt., Bryologist 90: 365. 1987[1988]. (Hattori 1987b)
Frullania fuscovirens Steph., Sp. Hepat. (Stephani) 4: 401. 1910. (Stephani 1912; Piippo 1990)

≡Frullania valida var. fuscovirens (Steph.) S. Hatt., J. Hattori Bot. Lab. 47: 120. 1980. (Hattori 1980d)
Frullania fuscovirens Steph. var. fuscovirens
Frullania fuscovirens var. gemmipara (R.M. Schust. & S. Hatt.) S. Hatt. & P.J. Lin, J. Hattori Bot. Lab. 59: 135. 1985. (Hattori & Lin 1985b; Piippo 1990)

Basionym: Frullania gemmipara R.M. Schust. & S. Hatt., J. Hattori Bot. Lab. 44: 547. 1978. (Hattori 1978)
Frullania gabonensis Vanden Berghen, Bull. Jard. Bot. Natl. Belg. 46: 81. 1976. (Vanden Berghen 1976)
Frullania gaoligongensis X.L. Bai & C. Gao, Hikobia 13: 87. 1999. (Bai & Gao 1999)
Frullania gaudichaudii (Nees & Mont.) Nees & Mont., Syn. Hepat.: 435. 1845. (Gottsche et al. 1844)

Basionym: Jubula gaudichaudii Nees & Mont., Ann. Sci. Nat., Bot., sér. 2, 5: 64. 1836. (Nees von Esenbeck & Montagne 1836)
- =Frullania recurvata Lehm. & Lindenb., Nov. Stirp. Pug. 7: 12. 1838. (Sukkharak 2018)
- =Frullania taylorii Gottsche, Syn. Hepat. (fasc. 3): 436. 1845. (Gottsche et al. 1844; Sukkharak 2018)
- =Frullania zippelii Sande Lac., Ann. Mus. Bot. Lugduno-Batavi 1: 313. 1864. (Hattori & Piippo 1986)
- =Frullania hasseltii Sande Lac., Bijdr. Fl. Midd. Sumatra 4(2): 44. 1884. (Sukkharak 2018) ≡Frullania gaudichaudii f. hasseltii (Sande Lac.) Verd., Ann. Bryol., Suppl. 1: 94. 1930. (Sukkharak 2018)
- =Frullania mannii Steph., Hedwigia 33(3): 151. 1894. (Sukkharak 2018)
- =Frullania geheebii Steph., Sp. Hepat. (Stephani) 4: 553. 1911. (Hattori & Piippo 1986)
- =Frullania minutiloba Steph., Sp. Hepat. (Stephani) 4: 555. 1911. (Yamada & Iwatsuki 2006)
- =Frullania nietneri Steph., Sp. Hepat. (Stephani) 4: 610. 1911. (Long & Rubasinghe 2014)
Frullania gemmulosa S. Hatt. & Thaithong, J. Hattori Bot. Lab. 43: 449. 1977. (Hattori et al. 1977)
Frullania gibbosa Nees, Syn. Hepat.: 411. 1845. (Gottsche et al. 1844)
- =Frullania macrotus Lindenb., Syn. Hepat. (fasc. 3): 425. 1845. (Gottsche et al. 1844; Schuster 1992)
- =Frullania gibbosa var. major Gottsche, Mexik. Leverm.: 233 (329). 1863. (Fulford & Sharp 1990)
- =Frullania gibbosa var. densissima Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 46. 1884. (Spruce 1884–1885; Yuzawa 1991)
- =Frullania wullschlaegelii Steph., Sp. Hepat. (Stephani) 4: 338. 1910. (Yuzawa 1991)
- =Frullania tolimana Steph., Sp. Hepat. (Stephani) 4: 339. 1910. (Gradstein & Uribe-M. 2016)
- =Frullania cerina Steph., Sp. Hepat. (Stephani) 4: 340. 1910. (Yuzawa 1991)
Frullania gigantea Steph., Sp. Hepat. (Stephani) 4: 467. 1911. (Stephani 1912)
Frullania giraldiana C. Massal., Mem. Accad. Verona 73(2): 41. 1897. (Massalongo 1897)
- =Frullania nepalensis f. rotundata Verd., Symb. Sin. 5: 41. 1930. (Piippo 1990)
Frullania giraldiana C. Massal. var. giraldiana
Frullania giraldiana var. handelii (Verd.) S. Hatt., J. Hattori Bot. Lab. 36: 123. 1972[1973]. (Hattori 1972b; Piippo 1990)

Basionym: Frullania nepalensis var. handelii Verd., Symb. Sin. 5: 41. 1930. (Nicholson et al. 1930)
Frullania globosa S. Hatt. & Streimann, J. Hattori Bot. Lab. 59: 107. 1985. (Hattori & Streimann 1985)
Frullania glomerata (Lehm. & Lindenb.) Mont., Ann. Sci. Nat., Bot., sér. 2, 9(1): 46. 1838. (Montagne 1838)

Basionym: Jungermannia glomerata Lehm. & Lindenb., Nov. Stirp. Pug. 5: 21. 1833. (Lehmann 1833)
- =Jungermannia spicata Lehm. & Lindenb., Nov. Stirp. Pug. 5: 6. 1833. ≡Frullania spicata (Lehm. & Lindenb.) Lehm. & Lindenb., Syn. Hepat.: 431. 1845. (Gradstein & Costa 2003)
- =Frullania hilariana Mont., Ann. Sci. Nat., Bot., sér. 2, 9: 45. 1838. (Montagne 1838; Gradstein & Costa 2003)
- =Frullania libera Nees, Repert. Pharm. 76: 43. 1842. (Gradstein & Costa 2003)
- =Frullania squamuligera Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 33. 1884. (Spruce 1884–1885; Gradstein 2021)
- =Frullania hirtiflora Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 35. 1884. (Spruce 1884–1885; Gradstein 2021)
- =Frullania hirtelliflora Gottsche, Sp. Hepat. (Stephani) 4: 390. 1910. (Gradstein & Costa 2003)
- =Frullania apiahyna Gottsche ex Steph., Sp. Hepat. (Stephani) 6: 535. 1924. (Gradstein & Costa 2003)
†Frullania grabenhorstii Heinrichs, K. Feldberg, Alina S. Müll., Schäf.-Verw., von Konrat & A.R. Schmidt, Bryoph. Diversity & Evol. 40(2): 94. 2018. (Feldberg et al. 2018)
Frullania gracilicaulis S. Hatt., J. Hattori Bot. Lab. 43: 421. 1977. (Hattori 1977a)
Frullania gracilis (Reinw., Blume & Nees) Nees, Syn. Hepat. (fasc. 3): 452. 1845. (Gottsche et al. 1844)

Basionym: Jungermannia gracilis Reinw., Blume & Nees, Nova Acta Phys.-Med. Acad. Caes. Leop.-Carol. Nat. Cur. 12: 221. 1825. (Reinwardt et al. 1824)
- =Frullania minor Sande Lac., Ned. Kruidk. Arch. 3(4): 424. 1855, nom. illeg. (Söderström et al. 2010) ≡Frullania gracilis subsp. minor S. Hatt., Bull. Natl. Sci. Mus. Tokyo, B 2: 11. 1976. (Hattori 1976b)
- =Frullania micholitzii Steph., Hedwigia 33(3): 164. 1894. (Hattori 1982d)
- =Frullania microstipula Steph., Hedwigia 33(3): 164. 1894. (Hattori 1982d)
- =Frullania fuscopurpurea Steph., Sp. Hepat. (Stephani) 4: 643. 1911. (Söderström et al. 2010)
- =Frullania lacerifolia Steph., Sp. Hepat. (Stephani) 4: 648. 1911. (Sukkharak 2018) ≡Frullania gracilis var. lacerifolia (Steph.) Verd., Ann. Bryol. 2: 144. 1929.
- =Frullania gracilis var. subapiculata Schiffn. ex Verd., Ann. Bryol. 2: 145. 1929. (Söderström et al. 2010)
- =Frullania minor var. exorta Verd., Ann. Bryol. 2: 148. 1929. ≡Frullania gracilis var. exorta (Verd.) S. Hatt., Bull. Natl. Sci. Mus. Tokyo, B 2: 13. 1976. (Hattori 1976b; Hattori & Lin 1985b)
- =Frullania minor var. subsinuata Schiffn. ex Verd., Ann. Bryol. 2: 159. 1929. ≡Frullania gracilis var. subsinuata (Schiffn. ex Verd.) S. Hatt., Bull. Natl. Sci. Mus. Tokyo, B 2: 13. 1976. (Hattori 1976b; Hattori & Lin 1985b)
- =Frullania gracilis f. subintegra S. Hatt., J. Hattori Bot. Lab. 38: 174. 1974. (Hattori 1974b; Hattori & Lin 1985b)
- =Frullania gracilis f. distincteocellata S. Hatt., J. Hattori Bot. Lab. 39: 288. 1975. (Hattori 1975f; Hattori & Lin 1985b)
- =Frullania minor var. integribracteola S. Hatt., J. Hattori Bot. Lab. 39: 293. 1975. (Hattori 1975f; Hentschel et al. 2015)
- =Frullania minor subsp. recurviloba S. Hatt., J. Hattori Bot. Lab. 39: 293. 1975. (Hattori 1975f; Hentschel et al. 2015)
Frullania gracilis var. brevior Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 3): 453. 1845. (Gottsche et al. 1844; Söderström et al. 2016)
Frullania gracilis (Reinw., Blume & Nees) Nees subsp. gracilis
Frullania gracilis (Reinw., Blume & Nees) Nees var. gracilis
Frullania gracilis var. vittata S. Hatt., J. Hattori Bot. Lab. 60: 243. 1986. (Hattori 1986c; Akiyama 2009)
Frullania gracilis subsp. zennoskei S. Hatt. & Thaithong, J. Hattori Bot. Lab. 44: 183. 1978. (Hattori & Thaithong 1978c; Singh et al. 2008)
Frullania gradsteinii Yuzawa, Mues & S. Hatt., J. Hattori Bot. Lab. 63: 429. 1987. (Yuzawa et al. 1987)
Frullania grandifolia Steph., Sp. Hepat. (Stephani) 4: 684. 1911. (Stephani 1912)
- =Frullania rabenhorstii Steph., Sp. Hepat. (Stephani) 4: 601. 1911. (Uribe-M. 2008)
Frullania grandilobula S. Hatt. & Piippo, Acta Bot. Fenn. 133: 45. 1986. (Hattori & Piippo 1986)
Frullania grandistipula Lindenb., Syn. Hepat.: 430. 1845. (Gottsche et al. 1844)
- =Frullania rugosa Mitt., J. Proc. Linn. Soc., Bot. 5: 120. 1861. (Long & Rubasinghe 2014) ≡Frullania grandistipula var. rugosa (Mitt.) S. Hatt., Bull. Natl. Sci. Mus. Tokyo, B 1: 78. 1975. (Hattori 1975c)
- =Frullania apiculiloba Steph., Sp. Hepat. (Stephani) 4: 440. 1910. (Söderström et al. 2010)
- =Frullania kurzii Steph., Sp. Hepat. (Stephani) 4: 454. 1910. (Verdoorn 1930a)
Frullania griffithsiana Gottsche, Syn. Hepat. (fasc. 4): 466. 1846. (Gottsche et al. 1844)
- =Frullania gottscheana Lindenb., Syn. Hepat. (fasc. 4): 466. 1846. (Gottsche et al. 1844; Stotler 1969)
Frullania grossiclava Steph., Sp. Hepat. (Stephani) 4: 384. 1910. (Stephani 1912)
Frullania grossifolia Steph., Sp. Hepat. (Stephani) 4: 633. 1911. (Stephani 1912)
Frullania guatemalensis Steph., Sp. Hepat. (Stephani) 4: 497. 1911. (Stephani 1912)
Frullania haematocysta Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 54. 1884. (Spruce 1884–1885)
Frullania hainanensis S. Hatt. & P.J. Lin, J. Jap. Bot. 61: 307. 1986. (Hattori & Lin 1986)
Frullania hamata Steph., Sp. Hepat. (Stephani) 4: 582. 1911. (Stephani 1912)
Frullania hamaticoma Steph., Hedwigia 28(3): 158. 1889. (Stephani 1889)
Frullania hamatiloba Steph., Sp. Hepat. (Stephani) 4: 400. 1910. (Stephani 1912)

≡Frullania pedicellata var. hamatiloba (Steph.) S. Hatt., J. Hattori Bot. Lab. 5: 67. 1951.
- =Frullania koreana Steph., Sp. Hepat. (Stephani) 4: 468. 1911. (Hattori 1980d)
- =Frullania hamatiloba f. grosseappendiculata S. Hatt., J. Jap. Bot. 20: 155. 1944. (Yamada & Iwatsuki 2006)
- =Frullania hamatiloba var. latistipula S. Hatt., Misc. Bryol. Lichenol. 7: 50. 1975. (Hattori 1975i; Yamada & Iwatsuki 2006)
- =Frullania fukushimensis Kamim., Misc. Bryol. Lichenol. 9: 87. 1982. (Kamimura 1982; Yamada & Iwatsuki 2006)
Frullania hamiflora Herzog & L. Clark, Bryologist 56: 180. 1953. (Clark & Schultz 1953)
- =Frullania macrorhyncha Herzog & L. Clark, Bryologist 56(4): 283. 1953. (Stotler 1969)
Frullania handel-mazzettii S. Hatt., J. Hattori Bot. Lab. 49: 150. 1981. (Hattori 1981a)
Frullania handelii Verd., Symb. Sin. 5: 36. 1930. (Nicholson et al. 1930)
Frullania hasskarliana Lindenb., Syn. Hepat.: 453. 1845. (Gottsche et al. 1844)
- =Frullania crassicaulis Steph., Sp. Hepat. (Stephani) 4: 552. 1911. (Verdoorn 1930a)
- =Frullania hasskarliana f. integribractea Verd., Ann. Bryol., Suppl. 1: 89. 1930. (Söderström et al. 2010) ≡Frullania hasskarliana var. integribractea (Verd.) S. Hatt., J. Hattori Bot. Lab. 39: 290. 1975. (Hattori 1975f)
Frullania hasskarliana var. gracilis S. Hatt., J. Hattori Bot. Lab. 60: 243. 1986. (Hattori 1986c; Akiyama 2009)
Frullania hasskarliana Lindenb. var. hasskarliana
Frullania hasskarliana var. parvidentata S. Hatt., J. Hattori Bot. Lab. 60: 245. 1986. (Hattori 1986c; Akiyama 2009)
Frullania hattoriantha Udar & Vir. Nath, Misc. Bryol. Lichenol. 9: 44. 1981. (Udar & Nath 1981)
Frullania hattorii von Konrat & Braggins, New Zealand J. Bot. 41: 56. 2003. (von Konrat & Braggins 2003)
Frullania hebridensis Steph., Sp. Hepat. (Stephani) 4: 469. 1911. (Stephani 1912)
Frullania hedrantha S. Hatt. & Kamim., J. Hattori Bot. Lab. 37: 519. 1973. (Hattori & Kamimura 1973)
Frullania heinrichsii Gradst., Espinoza-Prieto & J.J. Atwood, Bryoph. Diversity & Evol. 40(2): 69. 2018. (Atwood et al. 2018)
Frullania heteromorpha Schiffn., Forschungsr. Gazelle 4(Lebermoose): 38. 1890. (Schiffner 1889)
- =Frullania pallidissima Steph., Sp. Hepat. (Stephani) 4: 578. 1911. (Thouvenot et al. 2011)
- =Frullania ultima Beauverd, Sp. Hepat. (Stephani) 6: 554. 1924. (Hattori & Piippo 1986)
- =Frullania heteromorpha f. mamillosa Verd., Ann. Bryol., Suppl. 1: 171. 1930. (Hattori & Piippo 1986)
Frullania hicksiae S. Hatt., Cryptog. Bryol. Lichénol. 5: 182. 1984. (Hattori 1984a)
- =Frullania hicksiae f. litoralis S. Hatt., Beih. Nova Hedwigia 90: 149. 1988. (Hattori 1988a)
Frullania higuchii Yuzawa, N. Koike & S. Hatt., J. Hattori Bot. Lab. 75: 194. 1994. (Yuzawa & Koike 1994)
Frullania hiroshii S. Hatt., Bull. Natl. Sci. Mus. Tokyo, B 6: 34. 1980. (Hattori 1980a)
Frullania hodgsoniae von Konrat, Braggins, Hentschel & Heinrichs, Nova Hedwigia 91(3–4): 482. 2010. (von Konrat et al. 2010)

Replaced synonym: Frullania aterrima var. lepida E.A. Hodgs., Trans. & Proc. Roy. Soc. New Zealand 77(3): 386. 1949. (Hodgson 1949)
Frullania hohenesteri Schäf.-Verw. & Gerh. Winter, Frahmia 39: 2. 2023. (Schäfer-Verwimp & Winter 2023)
Frullania holostipula S. Hatt. & D.G. Griffin, Misc. Bryol. Lichenol. 8: 47. 1978. (Hattori & Griffin III 1978)
Frullania hottana S. Hatt., J. Hattori Bot. Lab. 40: 479. 1976. (Hattori 1976d)
Frullania howeana Steph., J. & Proc. Roy. Soc. New South Wales 48(1–2): 107. 1914. (Stephani & Watts 1914)
Frullania huerlimannii S. Hatt., Bull. Natl. Sci. Mus. Tokyo, B 2: 84. 1976. (Hattori 1976a)
- =Frullania huerlimannii var. latiloba S. Hatt., J. Hattori Bot. Lab. 43: 422. 1977. (Hattori 1977a; Thouvenot et al. 2011)
Frullania huerlimannii var. dioica S. Hatt., J. Hattori Bot. Lab. 57: 413. 1984. (Hattori 1984c; Hattori 1986b)
Frullania huerlimannii S. Hatt. var. huerlimannii
Frullania humbertii Vanden Berghen, Bull. Jard. Bot. Natl. Belg. 46: 24. 1976. (Vanden Berghen 1976)
Frullania humilis Spruce, Mem. Torrey Bot. Club 1(3): 119. 1890. (Spruce 1890)
Frullania hypoleuca Nees, Nov. Actorum Acad. Caes. Leop.-Carol. Nat. Cur. 19(Suppl. 1): 470. 1843. (Gottsche et al. 1843)
- =Frullania parvilobula Steph., Sp. Hepat. (Stephani) 4: 642. 1911. (Sukkharak 2018)
- =Frullania papulirostra Steph., Sp. Hepat. (Stephani) 4: 652. 1911. (Sukkharak 2018)
- =Frullania bosseana Steph., Sp. Hepat. (Stephani) 4: 655. 1911. (Hattori & Piippo 1986)
- =Frullania australis Steph., Sp. Hepat. (Stephani) 4: 659. 1911. (Sukkharak 2018)
- =Frullania reptans var. integristipula W.E. Nicholson, Bryologist 28(2): 19. 1925. (Miller et al. 1983)
- =Frullania itoana Kamim., J. Hattori Bot. Lab. 24: 77. 1961. (Yamada & Iwatsuki 2006)
Frullania hypoleucula S. Hatt., J. Hattori Bot. Lab. 57: 413. 1984. (Hattori 1984c)
Frullania ignatovii Sofronova, Mamontov & Potemkin, Novosti Sist. Nizsh. Rast. 47: 335. 2013. (Sofronova et al. 2013)
Frullania imerinensis Steph., Sp. Hepat. (Stephani) 4: 484. 1911. (Stephani 1912)
Frullania immersa Steph., Bot. Jahrb. Syst. 23: 315. 1896. (Reinecke 1896; Hattori & Piippo 1986)

≡Frullania gaudichaudii subsp. immersa (Steph.) S. Hatt., Bull. Natl. Sci. Mus. Tokyo, B 1: 143. 1975. (Hattori 1975b)
- =Frullania rechingeri Steph., Denkschr. Kaiserl. Akad. Wiss., Wien Math.-Naturwiss. Kl. 81: 298. 1907. (Grolle 1980)
Frullania incisoduthiana S. Hatt., J. Hattori Bot. Lab. 46: 391. 1979. (Mizutani 1979b)
Frullania incisoduthiana S. Hatt. var. incisoduthiana
Frullania incisoduthiana var. parva S. Hatt., J. Hattori Bot. Lab. 46: 391. 1979. (Mizutani 1979b; Hattori 1982b)
Frullania incisostipula Steph., Sp. Hepat. (Stephani) 6: 541. 1924. (Stephani 1925)
Frullania inconstans Verd., Nova Guinea 14: 543. 1930. (Verdoorn 1930b)
- =Frullania inconstans f. integrior Verd., Nova Guinea 14: 544. 1930. (Hattori & Piippo 1986)
Frullania inconstans var. grossedentata Kamim. & S. Hatt., J. Hattori Bot. Lab. 37: 530. 1973. (Hattori & Kamimura 1973; Hattori & Piippo 1986)
Frullania inconstans Verd. var. inconstans
Frullania incumbens Mitt., Fl. Nov.-Zel. 2: 162. 1855. (Hooker 1855)
Frullania incurva S. Hatt., J. Hattori Bot. Lab. 54: 431. 1988. (Hattori 1988b)
Frullania inflata Gottsche, Syn. Hepat.: 424. 1845. (Gottsche et al. 1844)
- =Frullania illyrica Grolle, Feddes Repert. Spec. Nov. Regni Veg. 68(2): 101. 1963. (Ros et al. 2007) ≡Frullania inflata subsp. illyrica (Grolle) R.M. Schust., Phytologia 53(5): 366. 1983. ≡Frullania inflata var. illyrica (Grolle) R.M. Schust., Hepat. Anthocerotae N. Amer. 5: 213. 1992.
- =Frullania inflata var. communis R.M. Schust., Phytologia 57(5): 372. 1985. (Schuster 1985; Mamontov et al. 2020b)
Frullania inflexa Mitt., J. Proc. Linn. Soc., Bot. 5: 120. 1861. (Mitten 1861)
- =Frullania delavayi Steph., Mém. Soc. Sci. Nat. Math. Cherbourg 29: 212. 1894. (Yamada & Iwatsuki 2006)
- =Frullania bidentula Steph., Sp. Hepat. (Stephani) 4: 398. 1910. (Yamada & Iwatsuki 2006)
- =Frullania tamsuina f. reniformia Kamim., Contr. Fl. Hepat. Shikoku.: 133. 1952. (Yamada & Iwatsuki 2006)
Frullania inflexiloba S. Hatt., J. Hattori Bot. Lab. 57: 415. 1984. (Hattori 1984c)
Frullania inouei S. Hatt., Bull. Natl. Sci. Mus. Tokyo, B 6: 36. 1980. (Hattori 1980a)
Frullania integristipula (Nees) Nees, Syn. Hepat.: 431. 1845. (Gottsche et al. 1844)

Basionym: Jungermannia integristipula Nees, Enum. Pl. Crypt. Jav.: 54. 1830. (Nees von Esenbeck 1830)
- =Frullania integristipula var. reflexistipuloides Verd., Ann. Bryol. 2: 153. 1929. (Söderström et al. 2010)
Frullania integristipula var. emarginata Verd., Ann. Bryol. 2: 153. 1929. (Verdoorn 1929a; Hattori 1980c)
Frullania integristipula (Nees) Nees var. integristipula
Frullania intermedia (Reinw., Blume & Nees) Nees, Syn. Hepat. (fasc. 3): 434. 1845. (Gottsche et al. 1844)

Basionym: Jungermannia intermedia Reinw., Blume & Nees, Nova Acta Phys.-Med. Acad. Caes. Leop.-Carol. Nat. Cur. 12: 218. 1825. (Reinwardt et al. 1824; Sukkharak 2018)
- =Frullania billardiereana Nees & Mont., Ann. Sci. Nat., Bot., sér. 2, 19: 256. 1843. (Montagne 1843; Hattori & Piippo 1986) ≡Frullania intermedia f. billardiereana (Nees & Mont.) Verd., Nova Guinea 14: 546. 1930.
- =Frullania explanata Mitt., J. Proc. Linn. Soc., Bot. 5: 121. 1861. (Long & Rubasinghe 2014)
- =Frullania angulosa Mitt., Fl. Vit.: 417. 1871[1873]. (Söderström et al. 2011b)
- =Frullania amboinensis Schiffn., Forschungsr. Gazelle 4(4): 39. 1889. (Hattori & Piippo 1986) ≡Frullania intermedia var. amboinensis (Schiffn.) Verd., Ann. Bryol., Suppl. 1: 163. 1930.
- =Frullania bicornustipula Steph., Hedwigia 28(3): 157. 1889, nom. illeg. ≡Frullania plumiformis Steph., Hedwigia 28(4): 278. 1889. (Sukkharak 2018)
- =Frullania kehdingiana Steph., Hedwigia 33(3): 150. 1894. (Thouvenot et al. 2011)
- =Frullania elegantissima Steph., Sp. Hepat. (Stephani) 4: 575. 1911. (Miller et al. 1983)
- =Frullania papilliloba Steph., Sp. Hepat. (Stephani) 4: 575. 1911. (Sukkharak 2018)
- =Frullania stellatitexta Steph., Sp. Hepat. (Stephani) 4: 585. 1911. (Söderström et al. 2011b)
- =Frullania polilloensis Steph., Sp. Hepat. (Stephani) 4: 586. 1911. (Sukkharak 2018)
- =Frullania subcommutata Steph., Denkschr. Kaiserl. Akad. Wiss., Wien Math.-Naturwiss. Kl. 91: 166. 1915[1914]. (Miller et al. 1983)
- =Frullania comptonii Pearson, J. Linn. Soc., Bot. 46(305): 32. 1922. (Sukkharak 2018)
- =Frullania intermedia f. fallacoides Verd., Ann. Bryol., Suppl. 1: 164. 1930. (Hattori 1982d)
- =Frullania intermedia var. submorokensis S. Hatt., J. Hattori Bot. Lab. 40: 483. 1976. (Hattori 1976d; Hattori 1982d)
Frullania intermedia (Reinw., Blume & Nees) Nees subsp. intermedia
Frullania intermedia (Reinw., Blume & Nees) Nees var. intermedia
Frullania intermedia subsp. morokensis (Steph.) S. Hatt., J. Hattori Bot. Lab. 47: 194. 1980. (Hattori 1980c; Hattori & Piippo 1986)

Basionym: Frullania morokensis Steph., Sp. Hepat. (Stephani) 4: 578. 1911. (Stephani 1912)
Frullania intermedia var. nonapiculata S. Hatt., J. Hattori Bot. Lab. 39: 291. 1975. (Hattori 1975f; Thouvenot et al. 2011)
- =Frullania graeffeana Steph., Sp. Hepat. (Stephani) 4: 585. 1911. (Thouvenot et al. 2011)
- =Frullania applanata Steph., Sp. Hepat. (Stephani) 4: 587. 1911. (Thouvenot et al. 2011)
Frullania intumescens (Lehm. & Lindenb.) Lehm. & Lindenb., Syn. Hepat.: 460. 1845. (Gottsche et al. 1844)

Basionym: Jungermannia intumescens Lehm. & Lindenb., Nov. Stirp. Pug. 6: 52. 1834. (Lehmann 1834)
- =Frullania baptistae Gottsche, Syn. Hepat. (fasc. 3): 455. 1845. (Gottsche et al. 1844; Stotler 1969)
- =Frullania cucullata Lindenb. & Gottsche, Syn. Hepat.: 782. 1847. (Gottsche et al. 1844; Gradstein et al. 2003)
- =Frullania longicollis Lindenb. & Gottsche, Syn. Hepat.: 783. 1847. (Gottsche et al. 1844; Gradstein & Uribe-M. 2016)
- =Frullania dubia Lindenb. & Hampe, Linnaea 24: 641. 1851. (Stotler 1969)
- =Frullania cucullata var. zacuapana Gottsche, Mexik. Leverm.: 345. 1863. (Fulford & Sharp 1990)
- =Frullania closterantha var. hylonoma Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 51. 1884. (Spruce 1884–1885; Stotler 1969)
- =Frullania fallax Steph., Sp. Hepat. (Stephani) 4: 495. 1911, nom. illeg. ≡Frullania fuscobrunnea Steph., Sp. Hepat. (Stephani) 6: 570. 1924. (Gradstein et al. 2003)
- =Frullania josephinae Gottsche, Sp. Hepat. (Stephani) 4: 498. 1911. (Stotler 1969)
- =Frullania pachoensis Steph., Sp. Hepat. (Stephani) 4: 503. 1911. (Gradstein & Uribe-M. 2016)
- =Frullania huatuscana Steph., Sp. Hepat. (Stephani) 4: 511. 1911. (Stotler 1969)
- =Frullania evolutiloba Steph., Biblioth. Bot. 87: 244. 1916. (Herzog 1916; Gradstein et al. 2003)
Frullania intumescens var. closterantha (Spruce) Gradst. & Pócs, Nova Hedwigia 112(1–2): 58. 2021. (Gradstein & Pócs 2021)

Basionym: Frullania closterantha Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 51. 1884. (Spruce 1884–1885; Gradstein & Pócs 2021)
- =Frullania sabanetica Gottsche, Ann. Sci. Nat., Bot., sér. 5, 1: 170. 1864. (Gradstein & Pócs 2021) ≡Frullania intumescens var. sabanetica (Gottsche) Gradst., Mem. New York Bot. Gard. 121: 370. 2021. (Gradstein 2021; Gradstein & Pócs 2021)
Frullania intumescens (Lehm. & Lindenb.) Lehm. & Lindenb. var. intumescens
Frullania involvens S. Hatt. & Kamim., J. Hattori Bot. Lab. 37: 526. 1973. (Hattori & Kamimura 1973)
Frullania iriomotensis S. Hatt., J. Jap. Bot. 55: 133. 1980. (Hattori 1980b)
Frullania irregularis S. Hatt. & Piippo, Acta Bot. Fenn. 133: 46. 1986. (Hattori & Piippo 1986)
Frullania iwatsukii S. Hatt., J. Hattori Bot. Lab. 35: 240. 1972. (Hattori 1972a)
Frullania jackii Gottsche, Hepat. Eur. 29–30: no. 294. 1863. (Gottsche & Rabenhorst 1863; Inoue 1976)

≡Frullania davurica subsp. jackii (Gottsche) S. Hatt., Bull. Natl. Sci. Mus. Tokyo, B 2: 21. 1976. (Hattori 1976b)
- =Frullania jackii var. rotundata Arnell, Rev. Bryol. 25(1): 1. 1898. (Arnell 1898; Müller 1912-1916)
Frullania jacobsii S. Hatt., Bull. Natl. Sci. Mus. Tokyo, B 12: 129. 1986. (Hattori 1986a)
Frullania jacquinotii Gottsche, J. Bot. (Morot) 12: 138. 1898. (Bescherelle 1898)
- =Frullania curvirostris var. setchellii Verd., Ned. Kruidk. Arch., ser. 3, 40(2): 159. 1930. (Bardat et al. 2021)
Frullania jelskii Loitl., Diagn. Pl. Nov.: 18. 1894. (Szyszyłowicz 1894)
Frullania johnsonii Steph., Hedwigia 33: 163. 1894. (Stephani 1894)
- =Frullania hasskarliana subsp. queenslandica S. Hatt., Cryptog. Bryol. Lichénol. 5: 180. 1984. (Hattori 1984a; Hattori 1988a)
Frullania jovetiana von Konrat & Hentschel, Phytotaxa 220(2): 135. 2015. (Hentschel et al. 2015)

Replaced synonym: Frullania pseudericoides S. Hatt., Bull. Natl. Sci. Mus. Tokyo, B 12: 132. 1986, nom. illeg. (Hattori 1986a)
Frullania junghuhniana Gottsche, Syn. Hepat.: 444. 1845. (Gottsche et al. 1844)
- =Jungermannia lobulata var. major Nees, Enum. Pl. Crypt. Jav.: 45. 1830. (Söderström et al. 2010)
- =Frullania diversifolia Steph., Sp. Hepat. (Stephani) 4: 640. 1911. (Thouvenot et al. 2011)
- =Frullania sundaica Steph., Sp. Hepat. (Stephani) 4: 644. 1911. (Hagborg et al. 2024)
Frullania junghuhniana var. bisexualis S. Hatt., J. Hattori Bot. Lab. 40: 485. 1976. (Hattori 1976d; Lee et al. 2022)
Frullania junghuhniana Gottsche var. junghuhniana
Frullania junghuhniana var. tenella (Sande Lac.) Grolle & S. Hatt., Misc. Bryol. Lichenol. 9: 123. 1982. (Hattori 1982e; Sukkharak 2018)

Basionym: Frullania tenella Sande Lac., Ned. Kruidk. Arch. 3(4): 423. 1855. (Sande Lacoste 1855)

≡Frullania sinuata var. tenella (Sande Lac.) Sande Lac., Syn. Hepat. Jav.: 87. 1856[1857].
- =Frullania perversa Steph., Hedwigia 33: 165. 1894. (Söderström et al. 2010) ≡Frullania junghuhniana var. perversa (Steph.) Horik., Acta Phytotax. Geobot. 13: 213. 1943. ≡Neohattoria perversa (Steph.) R.M. Schust., J. Hattori Bot. Lab. 33: 288. 1970.
- =Frullania minuta Steph., Sp. Hepat. (Stephani) 4: 640. 1911. (Sukkharak 2018)
- =Frullania subtilis Steph., Sp. Hepat. (Stephani) 4: 647. 1911. (Hattori & Piippo 1986)
- =Frullania junghuhniana var. minutissima Schiffn. ex Verd., Ann. Bryol. 2: 147. 1929. (Söderström et al. 2010)
- =Frullania reductiloba Verd., Ann. Bryol., Suppl. 1: 121. 1930. (Hattori & Piippo 1986)
- =Frullania junghuhniana subsp. denticulilobula S. Hatt., J. Hattori Bot. Lab. 36: 438. 1972[1973]. (Hattori & Piippo 1986)
- =Frullania perminuta S. Hatt., J. Hattori Bot. Lab. 36: 440. 1972[1973]. (Hattori & Piippo 1986)
- =Frullania perversa var. monoica S. Hatt., J. Hattori Bot. Lab. 38: 177. 1974. (Hattori 1974b) ≡Frullania junghuhniana var. monoica (S. Hatt.) S. Hatt., J. Hattori Bot. Lab. 39: 292. 1975. (Hattori 1975f; Sukkharak 2018) ≡Frullania junghuhniana subvar. monoica (S. Hatt.) S. Hatt., J. Hattori Bot. Lab. 40: 485. 1976. (Hattori 1976d)
†Frullania kachinensis Ya Li bis, Y.D. Wang & K. Feldberg, Geological J. 56(10): 5048. 2021. (Li et al. 2021b)
Frullania kagoshimensis Steph., Sp. Hepat. (Stephani) 4: 353. 1910. (Stephani 1912)
- =Frullania hinoi Kamim., Misc. Bryol. Lichenol. 9: 89. 1982. (Kamimura 1982; Yamada & Iwatsuki 2006)
Frullania kagoshimensis subsp. hunanensis (S. Hatt.) S. Hatt. & P.J. Lin, J. Hattori Bot. Lab. 59: 137. 1985. (Hattori & Lin 1985b; Piippo 1990)

Basionym: Frullania hunanensis S. Hatt., J. Hattori Bot. Lab. 49: 152. 1981. (Hattori 1981a)
Frullania kagoshimensis Steph. subsp. kagoshimensis
Frullania kalimantanensis S. Hatt., Bull. Natl. Sci. Mus. Tokyo, B 12: 127. 1986. (Hattori 1986a)
Frullania kashyapii Verd., Ann. Bryol. 5: 162. 1932. (Verdoorn 1932a)
Frullania kitagawana S. Hatt., J. Hattori Bot. Lab. 57: 417. 1984. (Hattori 1984c)
Frullania klotzschii Nees ex Steph., Sp. Hepat. (Stephani) 4: 558. 1911. (Stephani 1912)
Frullania knightbridgei von Konrat & de Lange, PhytoKeys 8: 28. 2012. (von Konrat et al. 2012)
Frullania koponenii S. Hatt., Ann. Bot. Fenn. 15: 111. 1978. (Koponen et al. 1978; Mamontov et al. 2024)
Frullania kunzei (Lehm. & Lindenb.) Mont., Hist. Phys. Cuba, Bot., Pl. Cell.: 537. 1842. (Montagne 1842b)

Basionym: Jungermannia kunzei Lehm. & Lindenb., Nov. Stirp. Pug. 6: 50. 1834. (Lehmann 1834)
- =Frullania leprieurii Lindenb., Syn. Hepat.: 449. 1845, nom. illeg. (Gottsche et al. 1844) ≡Frullania magniflora L. Clark & Svihla, Bryologist 55(4): 289. 1965. (Stotler 1969)
- =Frullania neesii Lindenb., Syn. Hepat.: 450. 1845. (Gottsche et al. 1844; Gradstein & Ilkiu-Borges 2009)
- =Frullania drummondii Taylor, London J. Bot. 5: 401. 1846. (Taylor 1846; Schuster 1992)
- =Frullania spatuliflora Spruce, J. Linn. Soc., Bot. 30(210): 333. 1895. (Schäfer-Verwimp 2010)
- =Frullania expansa Steph., Bih. Kongl. Svenska Vetensk.-Akad. Handl. 23(III,2): 18. 1897. (Gradstein & Costa 2003)
- =Frullania ecuadorensis Steph., Sp. Hepat. (Stephani) 4: 526. 1911. (Gradstein 2021)
- =Frullania elliottiana Steph., Sp. Hepat. (Stephani) 4: 527. 1911. (Schäfer-Verwimp 2010)
- =Frullania urbanii Steph., Sp. Hepat. (Stephani) 4: 527. 1911. (Stotler 1969)
- =Frullania brevipinna Steph., Sp. Hepat. (Stephani) 4: 528. 1911. (Stotler 1969)
- =Frullania galapagona Steph., Sp. Hepat. (Stephani) 4: 532. 1911, nom. illeg. ≡Frullania decipiens Beauverd, Sp. Hepat. (Stephani) 6: 570. 1924, nom. illeg. (Stotler 1969)
- =Frullania minima Steph., Sp. Hepat. (Stephani) 4: 532. 1911. (Stotler 1969)
- =Frullania capillacea Steph., Sp. Hepat. (Stephani) 4: 682. 1911. (Stotler 1969)
- =Frullania magniflora var. wrightii L. Clark & Svihla, Bryologist 55(4): 291. 1965. (Stotler 1969)
Frullania kunzei (Lehm. & Lindenb.) Mont. var. kunzei
Frullania kunzei var. maritima R.M. Schust. ex Hentschel & von Konrat, Phytotaxa 220(2): 135. 2015. (Hentschel et al. 2015)
Frullania laetevirens Hampe ex Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 3): 420. 1845. (Gottsche et al. 1844)
Frullania laeviperiantha X.L. Bai & C. Gao ex Hentschel & von Konrat, Phytotaxa 220(2): 136. 2015. (Hentschel et al. 2015)
Frullania lancistyla Steph., Sp. Hepat. (Stephani) 4: 389. 1910. (Stephani 1912)
Frullania larjiana Sushil K. Singh & D.K. Singh, J. Bryol. 27: 105. 2005. (Singh & Singh 2005)
Frullania larjiana var. didyhatii S.N. Srivast. & M. Rai, Geophytology 41(1–2): 109. 2011. (Srivastava & Rai 2011)
Frullania larjiana Sushil K. Singh & D.K. Singh var. larjiana
Frullania laticaulis Spruce, Mem. Torrey Bot. Club 1(3): 120. 1890. (Spruce 1890)
Frullania latiflora Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 34. 1884. (Spruce 1884–1885)
Frullania latogaleata Herzog, Trans. Brit. Bryol. Soc. 1(3): 189. 1949. (Herzog 1949)
Frullania laxiflora Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 26. 1884. (Spruce 1884–1885)
- =Frullania laxiflora var. crossii Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 27. 1884. (Spruce 1884–1885; Gradstein 2021)
- =Frullania fendleri Steph., Hedwigia 33(3): 138. 1894. (Yuzawa 1991)
- =Frullania hastata Steph., Sp. Hepat. (Stephani) 4: 672. 1911. (Gradstein et al. 2003)
Frullania leana Austin, Proc. Acad. Nat. Sci. Philadelphia 21(4): 227. 1869. (Austin 1869)
Frullania leeuwenii Verd., Nova Guinea 14: 545. 1930. (Verdoorn 1930b)
Frullania lepida S. Hatt. & Piippo, Acta Bot. Fenn. 133: 48. 1986. (Hattori & Piippo 1986)
Frullania letestui Vanden Berghen, Bull. Jard. Bot. Natl. Belg. 46: 38. 1976. (Vanden Berghen 1976)
Frullania levieri Steph., Sp. Hepat. (Stephani) 4: 388. 1910. (Stephani 1912)
Frullania lindbergiana Gottsche, Mexik. Leverm.: 240 (336). 1863. (Gottsche 1863)
Frullania lindenbergii Lehm., Nov. Stirp. Pug. 8: 17. 1844. (Lehmann 1844)
- =Frullania fusca Steph., Hedwigia 33: 163. 1894. (Wigginton 2018)
- =Frullania clavellifera Steph., Sp. Hepat. (Stephani) 4: 627. 1911. (Wigginton 2018)
- =Frullania lepervanchei Steph., Sp. Hepat. (Stephani) 4: 628. 1911. (Wigginton 2018)
Frullania lindenbergii var. fusca Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 5): 780. 1847. (Gottsche et al. 1844; Fulford & Sharp 1990)
Frullania lindenbergii Lehm. var. lindenbergii
Frullania lindmanii Steph., Bih. Kongl. Svenska Vetensk.-Akad. Handl. 23, Afd. 3(2): 19. 1897. (Stephani 1897a)
Frullania linii S. Hatt., J. Hattori Bot. Lab. 49: 155. 1981. (Hattori 1981a)
Frullania lobatohastata Steph., Sp. Hepat. (Stephani) 4: 499. 1911. (Stephani 1912)
- =Frullania apollinarii Steph., Sp. Hepat. (Stephani) 4: 602. 1911. (Gradstein & Uribe-M. 2016)
- =Frullania villosa Steph., Sp. Hepat. (Stephani) 4: 608. 1911. (Gradstein & Uribe-M. 2016)
Frullania lobulata (Hook.) Hook. & Nees, Syn. Hepat.: 445. 1845. (Gottsche et al. 1844)

Basionym: Jungermannia lobulata Hook., Musci Exot. 2: pl. 1819. (Hooker 1820)

≡Amphijubula lobulata (Hook.) R.M. Schust., Phytologia 45: 435. 1980. (Schuster 1980)
Frullania longistipula Steph., Bull. Soc. Roy. Bot. Belgique 30: 199. 1891. (Renauld & Cardot 1891)
Frullania longistipula var. apiculata Demaret & Vanden Berghen, Bull. Jard. Bot. État Bruxelles 20(1): 4. 1950. (Demaret & Vanden Berghen 1950; Söderström et al. 2016)
Frullania longistipula Steph. var. longistipula
Frullania longistyla Yuzawa & S. Hatt., J. Jap. Bot. 63: 361. 1988. (Yuzawa & Hattori 1988b)
Frullania loricata Pearson, Forh. Vidensk.-Selsk. Kristiania 1890(2): 6. 1891. (Pearson 1891)
- =Frullania camboueana Steph., Bull. Soc. Roy. Bot. Belgique 30: 198. 1891. (Wigginton 2018)
- =Frullania bessonii Steph., Bull. Soc. Roy. Bot. Belgique 32: 102. 1893. (Wigginton 2018)
- =Frullania filiformis Steph., Sp. Hepat. (Stephani) 4: 470. 1910. (Wigginton 2018)
- =Frullania bilabiata Steph., Sp. Hepat. (Stephani) 4: 489. 1911. (Wigginton 2018)
- =Frullania creberrima Steph., Sp. Hepat. (Stephani) 4: 489. 1911. (Wigginton 2018)
Frullania loricata var. laxa Pearson, Forh. Vidensk.-Selsk. Kristiania 1890(2): 8. 1891. (Pearson 1891; Wigginton 2018)
Frullania loricata Pearson var. loricata
Frullania ludovicae Steph., Rev. Bryol. 35(2): 29. 1908. (Stephani 1908)
Frullania lushanensis S. Hatt. & P.J. Lin, J. Hattori Bot. Lab. 59: 137. 1985. (Hattori & Lin 1985b)
Frullania macgregorii Steph., Hedwigia 33: 154. 1894. (Stephani 1894)
- =Frullania verdoorniana var. wilhelmensis S. Hatt., J. Hattori Bot. Lab. 37: 124. 1973. ≡Frullania reimersii var. wilhelmensis (S. Hatt.) S. Hatt., J. Hattori Bot. Lab. 38: 262. 1974. (Hattori 1974d; Hattori & Piippo 1986)
Frullania macgregorii Steph. var. macgregorii
Frullania macgregorii var. rostellula (S. Hatt.) S. Hatt., J. Hattori Bot. Lab. 51: 220. 1982. (Hattori 1982d; Hattori & Piippo 1986)

Basionym: Frullania reimersii var. rostellula S. Hatt., J. Hattori Bot. Lab. 38: 258. 1974. (Hattori 1974d)
Frullania macrocephala (Lehm. & Lindenb.) Lehm. & Lindenb., Syn. Hepat.: 460. 1845. (Gottsche et al. 1844)

Basionym: Jungermannia macrocephala Lehm. & Lindenb., Nov. Stirp. Pug. 5: 20. 1833. (Lehmann 1833)
- =Frullania repanda Gottsche, Ann. Sci. Nat., Bot., sér. 5, 1: 175. 1864. (Hentschel et al. 2015)
- =Frullania strobilantha Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 48. 1884. (Spruce 1884–1885; Menzel 1984)
- =Frullania tubiflora Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 49. 1884. (Spruce 1884–1885; Stotler 1969)
- =Frullania grossistipula Steph., Sp. Hepat. (Stephani) 4: 511. 1911. (Gradstein et al. 2003)
- =Frullania costaricensis Steph., Sp. Hepat. (Stephani) 4: 512. 1911. (Stotler 1969)
- =Frullania bullatiflora Steph., Sp. Hepat. (Stephani) 4: 513. 1911. (Gradstein & Uribe-M. 2016)
Frullania macrophylla S. Hatt., J. Hattori Bot. Lab. 47: 220. 1980. (Hattori 1980c)
Frullania macularis Taylor, London J. Bot. 5: 403. 1846. (Taylor 1846)
Frullania madagascariensis Gottsche, Abh. Naturwiss. Vereins Bremen 7: 364. 1882. (Gottsche 1882)
Frullania madens Steph., Sp. Hepat. (Stephani) 6: 553. 1924. (Stephani 1925)
Frullania madothecoides Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 47. 1884. (Spruce 1884–1885)
Frullania magellanica F. Weber & Nees, Syn. Hepat.: 446. 1845. (Gottsche et al. 1844)

Replaced synonym: Jungermannia magellanica Spreng., Ann. Wetterauischen Ges. Gesammte Naturk. 1(1): 25. 1809, nom. illeg. (Sprengel 1809)
Frullania magellanica F. Weber & Nees subsp. magellanica
Frullania magellanica subsp. tristaniana (S.W. Arnell) Váňa & J.J. Engel, Mem. New York Bot. Gard. 105: 59. 2013. (Váňa & Engel 2013)

Basionym: Frullania tristaniana S.W. Arnell, Results Norweg. Sci. Exped. Tristan da Cunha 42: 9. 1958. (Arnell 1958)
†Frullania magniloba Casp., Schriften Königl. Phys.-Ökon. Ges. Königsberg 27: 5. 1887. (Caspary 1887)
†Frullania mammilligera Grolle, Courier Forschungsinst. Senckenberg 241: 155. 2003. (Grolle 2003)
Frullania mammillosa S. Hatt., J. Hattori Bot. Lab. 43: 424. 1977. (Hattori 1977a)
Frullania matafaoica H.A. Mill., Phytologia 47: 322. 1981. (Miller 1981)

Replaced synonym: Frullania minutissima Pearson, Publ. Carnegie Inst. Wash. 20(341): 140. 1924, nom. illeg. (Brotherus & Pearson 1924)
Frullania mauritiana Austin, Proc. Acad. Nat. Sci. Philadelphia 21(4): 227. 1869. (Austin 1869)
Frullania mayebarae S. Hatt., Bot. Mag. (Tokyo) 65: 13. 1952. (Hattori 1952; Mamontov et al. 2020b)

≡Frullania inflata var. mayebarae (S. Hatt.) K. Yamada, Misc. Bryol. Lichenol. 6: 163. 1974. (Yamada 1974; Mamontov et al. 2020b)
- =Frullania inflata var. magnicorpa K. Yamada, Misc. Bryol. Lichenol. 6: 162. 1974. (Yamada 1974; Mamontov et al. 2020b)
Frullania mayebarae var. concava Kamim., J. Hattori Bot. Lab. 24: 87. 1961. (Kamimura 1961; Mamontov et al. 2020b)
Frullania mayebarae S. Hatt. var. mayebarae
Frullania maymyoensis Svihla, Bryologist 61(4): 376. 1958[1959]. (Svihla 1958)
Frullania mcveanii S. Hatt., J. Hattori Bot. Lab. 37: 55. 1973. (Hattori 1973b)
Frullania media (E.A. Hodgs.) S. Hatt., J. Hattori Bot. Lab. 54: 153. 1983. (Hattori 1983)

Basionym: Frullania fugax var. media E.A. Hodgs., Trans. & Proc. Roy. Soc. New Zealand 77: 375. 1949. (Hodgson 1949)
Frullania mehrana S. Hatt., Recent Advances Bot.: 66. 1976. (Hattori 1976f)
Frullania meijeri S. Hatt., Bull. Natl. Sci. Mus. Tokyo, n.s. 17: 307. 1974. (Hattori 1974a)
Frullania meridana Steph., Sp. Hepat. (Stephani) 4: 500. 1911. (Stephani 1912)
Frullania mexicana Lindenb., Syn. Hepat.: 425. 1845. (Gottsche et al. 1844; Atwood & Mamontov 2018)
Frullania meyeniana Lindenb., Syn. Hepat.: 455. 1845. (Gottsche et al. 1844)
- =Frullania pallens Steph., Hedwigia 33(3): 165. 1894. (Sukkharak 2018)
- =Frullania tonkinensis Steph., Hedwigia 33(3): 168. 1894. (Sukkharak 2018)
- =Frullania helleri Steph., Bull. Herb. Boissier 5(10): 845. 1897. (Sukkharak 2018)
- =Frullania helleri Steph., Denkschr. Kaiserl. Akad. Wiss., Wien Math.-Naturwiss. Kl. 85: 193. 1910, nom. illeg. (So & Wang 2006)
- =Frullania accumbens Steph., Sp. Hepat. (Stephani) 4: 550. 1911. (Sukkharak 2018)
- =Frullania boninensis Horik., J. Sci. Hiroshima Univ., Ser. B, Div. 2, Bot. 2: 239. 1934. (Horikawa 1934; Yamada & Iwatsuki 2006)
Frullania meyeniana var. dioica S. Hatt., J. Hattori Bot. Lab. 43: 426. 1977. (Hattori 1977a; Hattori 1984c)
Frullania meyeniana Lindenb. var. meyeniana
Frullania microauriculata Verd., Ann. Bryol. 2: 126. 1929. (Verdoorn 1929a)
Frullania microauriculata Verd. var. microauriculata
Frullania microauriculata var. rotundior Verd., Ann. Jard. Bot. Buitenzorg 40: 141. 1929. (Verdoorn 1929b; Söderström et al. 2010)
Frullania microcaulis Gola, Nuovo Giorn. Bot. Ital., n.s. 29: 172. 1922[1923]. (Gola 1922)

≡Amphijubula microcaulis (Gola) R.M. Schust., Phytologia 45: 435. 1980. (Schuster 1980)
- =Amphijubula spruceana R.M. Schust., J. Hattori Bot. Lab. 33: 301. 1970. (Hässel de Menéndez & Rubies 2009)
Frullania microcephala Gottsche, Mexik. Leverm.: 251. 1863. (Gottsche 1863)
Frullania microphylla (Gottsche) Pearson, J. Bot. 32: 328. 1894. (Pearson 1894)

Basionym: Frullania tamarisci var. microphylla Gottsche, Hepat. Eur. 21–22: no. 209. 1862. (Gottsche & Rabenhorst 1862)
- =Frullania microphylla var. deciduifolia Grolle, Wiss. Z. Friedrich-Schiller-Univ. Jena, Math.-Naturwiss. Reihe 19: 310. 1970. (Hodgetts et al. 2020)
Frullania microrhyncha L. Clark & Svihla, Bryologist 53(1): 63. 1950. (Clark & Svihla 1950)
Frullania microscopica Pearson, J. Linn. Soc., Bot. 46: 305. 1922. (Pearson et al. 1922)

≡Neohattoria microscopica (Pearson) R.M. Schust., J. Hattori Bot. Lab. 26: 243. 1963. ≡Schusterella microscopica (Pearson) S. Hatt., Sharp & Mizut., Jap. J. Bot. 20: 331. 1972. (Hattori et al. 1972)
- =Schusterella microscopica f. mammillata S. Hatt., Sharp & Mizut., Jap. J. Bot. 20: 334. 1972. (Thouvenot et al. 2011)
Frullania mirabilis J.B. Jack & Steph., Hedwigia 31: 15. 1892. (Jack & Stephani 1892)
- =Frullania sachapatensis Steph., Sp. Hepat. (Stephani) 4: 598. 1911. (Uribe-M. 2008)
- =Frullania pendulostyla Steph., Sp. Hepat. (Stephani) 6: 547. 1924. (Gradstein & Uribe-M. 2016)
Frullania miradorensis Lindenb. & Gottsche, Syn. Hepat.: 781. 1847. (Gottsche et al. 1844)
Frullania mizoramensis Sushil K. Singh & Barbhuiya, Taiwania 57(2): 106. 2012. (Singh & Barbhuiya 2012)
Frullania mizutanii Kamim. & S. Hatt., J. Hattori Bot. Lab. 37: 524. 1973. (Hattori & Kamimura 1973)
Frullania moniliata (Reinw., Blume & Nees) Mont., Ann. Sci. Nat., Bot., sér. 2, 18: 13. 1842. (Montagne 1842a)

Basionym: Jungermannia moniliata Reinw., Blume & Nees, Nova Acta Phys.-Med. Acad. Caes. Leop.-Carol. Nat. Cur. 12: 224. 1825. (Reinwardt et al. 1824)

≡Frullania tamarisci subsp. moniliata (Reinw., Blume & Nees) Kamim., J. Hattori Bot. Lab. 24: 65. 1961.
- =Frullania clavellata Mitt., Trans. Linn. Soc. London, Bot. 3(3): 203. 1891. (Yamada & Iwatsuki 2006)
- =Frullania balansae Steph., Hedwigia 33: 156. 1894. (Wang et al. 2011) ≡Frullania tamarisci var. balansae (Steph.) S. Hatt., J. Hattori Bot. Lab. 35: 220. 1972.
- =Frullania makinoana Steph., Bull. Herb. Boissier 5(2): 89. 1897. (Yamada & Iwatsuki 2006) ≡Frullania tamarisci f. makinoana (Steph.) S. Hatt., J. Hattori Bot. Lab. 35: 216. 1972.
- =Frullania lacerostipula Steph., Nuovo Giorn. Bot. Ital., n.s. 13(4): 348. 1906. (Hattori & Lin 1985b)
- =Frullania breviramea Steph., Sp. Hepat. (Stephani) 4: 547. 1911. (Söderström et al. 2010) ≡Frullania moniliata subsp. breviramea (Steph.) Verd., Ann. Bryol., Suppl. 1: 76. 1930. ≡Frullania tamarisci var. breviramea (Steph.) S. Hatt., J. Hattori Bot. Lab. 35: 222. 1972.
- =Frullania moniliata subsp. obscura Verd., Ann. Bryol., Suppl. 1: 80. 1930. ≡Frullania tamarisci subsp. obscura (Verd.) S. Hatt., J. Hattori Bot. Lab. 35: 216. 1972. (Söderström et al. 2010) ≡Frullania tamarisci var. obscura (Verd.) S. Hatt., J. Hattori Bot. Lab. 35: 216. 1972.
- =Frullania moniliata f. parva Verd., Ann. Bryol., Suppl. 1: 80. 1930. (Piippo 1990)
- =Frullania moniliata f. alpina Verd., Symb. Sin. 5: 42. 1930. (Piippo 1990) ≡Frullania tamarisci f. alpina (Verd.) S. Hatt., J. Hattori Bot. Lab. 35: 217. 1972.
- =Frullania moniliata f. obtusiloba Verd., Symb. Sin. 5: 43. 1930. (Piippo 1990)
- =Frullania hongkongensis Verd., Ned. Kruidk. Arch., ser. 3, 42(2): 494. 1932. (Hattori & Lin 1985b)
- =Frullania pendula Kamim., Acta Phytotax. Geobot. 14: 108. 1952, nom. illeg. ≡Frullania kamimurae Inoue, J. Jap. Bot. 41(1): 15. 1966. (Yamada & Iwatsuki 2006)
- =Frullania iwatsukii subsp. vietnamica S. Hatt., Misc. Bryol. Lichenol. 7: 87. 1976. (Hattori 1976e) ≡Frullania tamarisci var. vietnamica (S. Hatt.) S. Hatt., J. Hattori Bot. Lab. 59: 162. 1985. (Hattori & Lin 1985b; Shu et al. 2017)
Frullania moniliata (Reinw., Blume & Nees) Mont. var. moniliata
Frullania moniliata var. ocellata Herzog ex Zwickel, Beih. Bot. Centralbl., Abt. 1, 49(3): 637. 1932. (Zwickel 1932)
Frullania monocera (Hook. f. & Taylor) Gottsche, Lindenb. & Nees, Syn. Hepat.: 418. 1845. (Gottsche et al. 1844)

Basionym: Jungermannia monocera Hook. f. & Taylor, London J. Bot. 4: 89. 1845. (Hooker & Taylor 1845)
- =Frullania hampeana Nees, Syn. Hepat.: 426. 1845. (Gottsche et al. 1844; Thouvenot et al. 2011)
- =Frullania novae-zelandiae Colenso, Trans. & Proc. New Zealand Inst. 19: 296. 1887. (Colenso 1887; Glenny 1998)
- =Frullania lanciloba Steph., Sp. Hepat. (Stephani) 4: 404. 1910. (Yamada & Iwatsuki 2006)
- =Frullania grossiloba Steph., Sp. Hepat. (Stephani) 4: 424. 1910. (Scott & Bradshaw 1985)
- =Frullania tortuosa Verd., Ann. Bryol. 2: 136. 1929. (Söderström et al. 2010)
Frullania monocera var. acutiloba (Mitt.) Hentschel & von Konrat, Phytotaxa 220(2): 136. 2015. (Hentschel et al. 2015; Sukkharak 2018)

Basionym: Frullania acutiloba Mitt., J. Proc. Linn. Soc., Bot. 5: 120. 1861. (Mitten 1861; Hentschel et al. 2015)

≡Frullania hampeana var. acutiloba (Mitt.) S. Hatt., Bull. Natl. Sci. Mus. Tokyo, B 1: 73. 1975. (Hattori 1975c)
- =Frullania asperula Mitt., J. Proc. Linn. Soc., Bot. 5: 119. 1861. (Hattori 1975c)
Frullania monocera var. depauperata S. Hatt., J. Hattori Bot. Lab. 57: 419. 1984. (Hattori 1984c; Piippo 1990)
Frullania monocera (Hook. f. & Taylor) Gottsche, Lindenb. & Nees var. monocera
Frullania monocera var. schiffneri (Verd.) S. Hatt., J. Hattori Bot. Lab. 46: 120. 1979. (Hattori 1979b; Long & Rubasinghe 2014)

Basionym: Frullania acutiloba var. schiffneri Verd., Ann. Bryol. 2: 123. 1929. (Verdoorn 1929a)
Frullania monocera var. subhampeana (E.A. Hodgs.) Hentschel & von Konrat, Phytotaxa 220(2): 136. 2015. (Hentschel et al. 2015)

Basionym: Frullania subhampeana E.A. Hodgs., Trans. & Proc. Roy. Soc. New Zealand 77: 370. 1949. (Hodgson 1949)
Frullania monocera var. undulata (Kamim.) Hentschel & von Konrat, Phytotaxa 220(2): 136. 2015. (Hentschel et al. 2015)

Basionym: Frullania undulata Kamim., J. Hattori Bot. Lab. 24: 50. 1961. (Kamimura 1961)

≡Frullania hampeana var. undulata (Kamim.) Inoue, J. Jap. Bot. 41(1): 15. 1966.
Frullania monoica Steph., Bih. Kongl. Svenska Vetensk.-Akad. Handl. 26, Afd. 3(6): 67. 1900. (Stephani 1900)
Frullania montagnei Gottsche, Syn. Hepat.: 456. 1845. (Gottsche et al. 1844; Gradstein 2021)
- =Frullania tuerckheimii Steph., Sp. Hepat. (Stephani) 4: 508. 1911. (Gradstein et al. 2003)
- =Frullania confusa Steph., Sp. Hepat. (Stephani) 4: 517. 1911. (Stotler 1969)
- =Frullania purpurascens Steph., Sp. Hepat. (Stephani) 4: 525. 1911. (Gradstein et al. 2003)
- =Frullania auritistipula Steph., Sp. Hepat. (Stephani) 4: 528. 1911. (Stotler 1969)
- =Frullania virillana Steph., Sp. Hepat. (Stephani) 4: 528. 1911. (Gradstein & Costa 2003)
- =Frullania gualaquizana Steph., Sp. Hepat. (Stephani) 4: 531. 1911. (Gradstein 2021)
Frullania montana Steph., Sp. Hepat. (Stephani) 4: 455. 1910. (Stephani 1912)
Frullania moritziana Lindenb. & Gottsche, Syn. Hepat.: 782. 1847. (Gottsche et al. 1844)
- =Frullania moritziana var. mexicana Gottsche, Mexik. Leverm.: 249 (345). 1863. (Fulford & Sharp 1990)
Frullania morobensis S. Hatt. & Streimann, J. Hattori Bot. Lab. 59: 109. 1985. (Hattori & Streimann 1985)
Frullania motoyana Steph., Sp. Hepat. (Stephani) 4: 646. 1911. (Stephani 1912)
- =Frullania minutifolia Steph., Sp. Hepat. (Stephani) 4: 650. 1911. (Yamada & Iwatsuki 2006)
- =Frullania inopinata Verd., Ann. Bryol. 5: 164. 1932. (Verdoorn 1932a; Hattori & Lin 1985b)
Frullania multilacera Steph., Sp. Hepat. (Stephani) 4: 650. 1911. (Stephani 1912)
Frullania multilacera subsp. gracilior S. Hatt., Mem. New York Bot. Gard. 45: 547. 1987. (Hattori 1987a; Söderström et al. 2016)
Frullania multilacera var. lacerissima S. Hatt., J. Hattori Bot. Lab. 39: 294. 1975. (Hattori 1975f; Hattori & Piippo 1986)
Frullania multilacera Steph. subsp. multilacera
Frullania multilacera Steph. var. multilacera
Frullania multilaceroides S. Hatt., Mem. New York Bot. Gard. 45: 549. 1987. (Hattori 1987a)
Frullania multituberculata Hentschel & von Konrat, Phytotaxa 220(2): 136. 2015. (Hentschel et al. 2015)

Replaced synonym: Frullania kalimantanensis Piippo & S. Hatt., J. Hattori Bot. Lab. 72: 117. 1992, nom. illeg. (Piippo & Tan 1992)
Frullania muscicola Steph., Hedwigia 33: 146. 1894. (Stephani 1894)
- =Frullania inuena Steph., Sp. Hepat. (Stephani) 4: 398. 1910. (Sukkharak 2018) ≡Frullania muscicola var. inuena (Steph.) Kamim., J. Hattori Bot. Lab. 24: 25. 1961.
- =Frullania truncatifolia Steph., Sp. Hepat. (Stephani) 4: 398. 1910. (Sukkharak 2018) ≡Frullania brittoniae subsp. truncatifolia (Steph.) R.M. Schust. & S. Hatt., Misc. Bryol. Lichenol. 7: 28. 1975. (Hattori 1975h)
- =Frullania himalayensis Steph., Sp. Hepat. (Stephani) 4: 441. 1910. (Hattori 1944)
- =Frullania uematsuana Beauverd, Sp. Hepat. (Stephani) 6: 543. 1924. (Yamada & Iwatsuki 2006)
- =Frullania yusawae Kamim., Bull. Kochi Gakuen Junior Coll. 2: 21. 1971. (Yuzawa & Hattori 1981)
Frullania mutilata Steph., Sp. Hepat. (Stephani) 4: 673. 1911. (Stephani 1912)
Frullania nadeaudii Steph., Sp. Hepat. (Stephani) 4: 465. 1911. (Stephani 1912)
- =Frullania bescherellei var. explanata Pearson, J. Linn. Soc., Bot. 46(305): 32. 1922. (Bardat et al. 2021)
Frullania neomexicana J.J. Atwood, Vilnet & Mamontov, Nova Hedwigia Beih. 150: 235. 2020. (Mamontov et al. 2020b)
Frullania neosheana S. Hatt., J. Hattori Bot. Lab. 45: 350. 1979. (Hattori 1979a; Renner et al. 2024)
Frullania nepalensis (Spreng.) Lehm. & Lindenb., Syn. Hepat.: 422. 1845. (Gottsche et al. 1844)

Basionym: Jungermannia nepalensis Spreng., Syst. Veg. [Sprengel] 4(1): 324. 1827. (Sprengel 1827a)
- =Frullania hornschuchiana Nees, Syn. Hepat. (fasc. 3): 422. 1845. (Gottsche et al. 1844; Sukkharak 2018)
- =Frullania grevilleana Taylor, Syn. Hepat.: 421. 1846. (Gottsche et al. 1844; Hattori & Lin 1985b) ≡Frullania nepalensis var. grevilleana (Taylor) S. Hatt., J. Hattori Bot. Lab. 46: 322. 1979. (Mizutani 1979a)
- =Frullania nishiyamensis Steph., Bull. Herb. Boissier 5: 90. 1897. (Yamada & Iwatsuki 2006) ≡Frullania nepalensis var. nishiyamensis (Steph.) S. Hatt., Iconogr. Pl. Asiae Orient. 4: 332. 1941.
- =Frullania sanguinea Steph., Sp. Hepat. (Stephani) 4: 453. 1910. (Sukkharak 2018)
- =Frullania laxepinnata Steph., Sp. Hepat. (Stephani) 4: 457. 1910. (Sukkharak 2018)
- =Frullania muscicola var. chungii Verd., Symb. Sin. 5: 38. 1930. (Piippo 1990)
- =Frullania grevilleana var. gebaueri Verd., Ann. Bryol. 5: 164. 1932. (Verdoorn 1932a; Hentschel et al. 2015)
- =Frullania grevilleana var. densa Schiffn. ex Verd., Ned. Kruidk. Arch., ser. 3, 42: 487. 1932. (Hentschel et al. 2015)
Frullania neurota Taylor, London J. Bot. 5: 400. 1846. (Taylor 1846)
- =Frullania breviuscula Mitt., J. Proc. Linn. Soc., Bot. 5: 120. 1861. (Sukkharak 2018)
- =Frullania lauterbachii Steph., Sp. Hepat. (Stephani) 4: 350. 1910. (Söderström et al. 2010)
- =Frullania neurota var. pfleidereri S. Hatt., J. Hattori Bot. Lab. 36: 133. 1972[1973]. (Yuzawa 1991)
Frullania nicholsonii E.A. Hodgs., Trans. & Proc. Roy. Soc. New Zealand 77: 362. 1949. (Hodgson 1949)

Replaced synonym: Frullania berggrenii W.E. Nicholson, Bryologist 28: 17. 1925, nom. illeg. (Nicholson 1925)
Frullania nigricaulis (Reinw., Blume & Nees) Nees, Syn. Hepat.: 457. 1845. (Gottsche et al. 1844)

Basionym: Jungermannia nigricaulis Reinw., Blume & Nees, Nova Acta Phys.-Med. Acad. Caes. Leop.-Carol. Nat. Cur. 12: 225. 1825. (Reinwardt et al. 1824)
- =Frullania emarginatula Steph., Sp. Hepat. (Stephani) 4: 447. 1910. (Sukkharak 2018)
- =Frullania macrostipula Steph., Sp. Hepat. (Stephani) 4: 611. 1911. (Sukkharak 2018)
Frullania nigricaulis var. elongata Verd., Ann. Bryol., Suppl. 1: 155. 1930. (Verdoorn 1930a; Söderström et al. 2010)
Frullania nigricaulis (Reinw., Blume & Nees) Nees var. nigricaulis
Frullania nisquallensis Sull., Mem. Amer. Acad. Arts, n.s. 4(1): 175. 1849[1850]. (Sullivant 1849)

≡Frullania tamarisci subsp. nisquallensis (Sull.) S. Hatt., Fl. E. Himalaya 1: 528. 1966.
Frullania nivimontana S. Hatt., Bull. Natl. Sci. Mus. Tokyo, B 8: 95. 1982. (Hattori 1982a)
Frullania nobilis Steph., Hedwigia 33: 154. 1894. (Stephani 1894)
Frullania nobilis var. cochleata (Steph.) S. Hatt., J. Hattori Bot. Lab. 59: 111. 1985. (Hattori & Streimann 1985; Hattori & Piippo 1986)

Basionym: Frullania cochleata Steph., Sp. Hepat. (Stephani) 4: 681. 1911. (Stephani 1912)

≡Frullania ornithocephala var. cochleata (Steph.) S. Hatt., J. Hattori Bot. Lab. 39: 297. 1975. (Hattori 1975f) ≡Frullania nobilis f. cochleata (Steph.) S. Hatt., J. Hattori Bot. Lab. 44: 536. 1978. (Hattori 1978)
Frullania nobilis Steph. var. nobilis
Frullania nodulosa (Reinw., Blume & Nees) Nees, Syn. Hepat.: 433. 1845. (Gottsche et al. 1844)

Basionym: Jungermannia nodulosa Reinw., Blume & Nees, Nova Acta Phys.-Med. Acad. Caes. Leop.-Carol. Nat. Cur. 12: 217. 1824. (Reinwardt et al. 1824)
- =Jungermannia replicata Nees, Fl. Bras. Enum. Pl. 1: 369. 1833. ≡Frullania replicata (Nees) Nees, Nov. Actorum Acad. Caes. Leop.-Carol. Nat. Cur. 19(Suppl. 1): 471. 1843. (Gottsche et al. 1843; Gradstein & Uribe-M. 2016)
- =Frullania secundiflora Mont., Ann. Sci. Nat., Bot., sér. 2, 19: 258. 1843. (Montagne 1843; Hattori & Piippo 1986) ≡Frullania nodulosa var. secundiflora (Mont.) Verd., Ann. Bryol., Suppl. 1: 183. 1930.
- =Frullania replicata var. convoluta Nees, Nov. Actorum Acad. Caes. Leop.-Carol. Nat. Cur. 19(Suppl. 1): 472. 1843. (Gottsche et al. 1843; Tan & Engel 1986)
- =Frullania cognata Lindenb., Syn. Hepat. (fasc. 3): 433. 1845. (Gottsche et al. 1844; Sukkharak 2018)
- =Frullania thuilleri Nees, Syn. Hepat. (fasc. 3): 434. 1845. (Gottsche et al. 1844; Gradstein & Costa 2003)
- =Frullania nodulosa var. plana Schiffn., Forschungsr. Gazelle 4(Lebermoose): 37. 1890. (Hattori & Piippo 1986)
- =Frullania dapitana Steph., Hedwigia 33(3): 150. 1894. (Hattori & Piippo 1986) ≡Frullania nodulosa f. dapitana (Steph.) Verd., Ann. Cryptog. Exot. 1: 220. 1928.
- =Frullania ledermannii Steph., Sp. Hepat. (Stephani) 6: 552. 1924. (Hattori & Piippo 1986)
- =Frullania nodulosa f. irreflexa Verd., Ann. Cryptog. Exot. 1: 220. 1928. (Hattori & Piippo 1986)
Frullania notarisii Steph., Sp. Hepat. (Stephani) 4: 651. 1911. (Stephani 1912)
Frullania novocurvirostris S. Hatt., J. Hattori Bot. Lab. 49: 370. 1981. (Hattori 1981b)

Replaced synonym: Frullania curvirostris J.B. Jack & Steph., Hedwigia 33: 143. 1894, nom. illeg. (Stephani 1894; Söderström et al. 2011b)
Frullania novoguineensis Schiffn., Forschungsr. Gazelle 4(4): 37. 1890. (Schiffner 1889)
Frullania oahuensis Hampe ex Gottsche, Lindenb. & Nees, Nov. Actorum Acad. Caes. Leop.-Carol. Nat. Cur. 19(Suppl. 1): 471. 1843. (Gottsche et al. 1843)
- =Frullania cookei A. Evans, Sp. Hepat. (Stephani) 4: 437. 1910. (Staples & Imada 2006)
Frullania oakesiana Austin, Proc. Acad. Nat. Sci. Philadelphia 21(4): 226. 1869. (Austin 1869)
Frullania obcordata (Lehm. & Lindenb.) Lehm. & Lindenb., Syn. Hepat.: 447. 1845. (Gottsche et al. 1844; Winter & Schäfer-Verwimp 2020)

Basionym: Jungermannia obcordata Lehm. & Lindenb., Nov. Stirp. Pug. 6: 51. 1834. (Lehmann 1834)
- =Frullania parasitica Hampe ex Lehm., Nov. Stirp. Pug. 7: 11. 1838. (Winter & Schäfer-Verwimp 2020)
- =Frullania gymnotis Nees & Mont., Ann. Sci. Nat., Bot., sér. 2, 19(4): 257. 1843. (Montagne 1843; Winter & Schäfer-Verwimp 2020)
- =Jungermannia myosota Hook. f. & Taylor, London J. Bot. 3: 393. 1844. ≡Frullania myosota (Hook. f. & Taylor) Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 57. 1884. (Winter & Schäfer-Verwimp 2020)
- =Frullania martiana Gottsche, Syn. Hepat. (fasc. 3): 448. 1845. (Gottsche et al. 1844; Winter & Schäfer-Verwimp 2020)
- =Frullania caroliniana Sull., Amer. J. Sci. Arts, ser. 2, 1: 74. 1846. (Gray 1846; Winter & Schäfer-Verwimp 2020)
- =Frullania obcordata var. armata Lindenb. & Gottsche, Linnaea 24(6): 638. 1851[1852]. (Gradstein & Hekking 1989)
- =Frullania leptophylla De Not., Jungerm. Amer. Pug.: 28. 1855. (Winter & Schäfer-Verwimp 2020)
- =Frullania galapagona Ångstr., Öfvers. Kongl. Vetensk.-Akad. Förh. 30(5): 116. 1873. (Ångström 1873; Winter & Schäfer-Verwimp 2020)
- =Frullania compsotera Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 57. 1884. (Spruce 1884–1885; Winter & Schäfer-Verwimp 2020)
- =Frullania duricaulis Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 59. 1884. (Spruce 1884–1885; Yuzawa & Koike 1989)
- =Frullania pabstiana Steph., Sp. Hepat. (Stephani) 4: 629. 1911. (Winter & Schäfer-Verwimp 2020)
- =Frullania miradorensis Steph., Sp. Hepat. (Stephani) 4: 632. 1911, nom. illeg. (Winter & Schäfer-Verwimp 2020)
- =Frullania amoena Steph., Sp. Hepat. (Stephani) 4: 635. 1911. (Winter & Schäfer-Verwimp 2020)
Frullania obovata S. Hatt., Bull. Natl. Sci. Mus. Tokyo, B 8: 97. 1982. (Hattori 1982a)
Frullania obscura (Sw.) Nees ex Mont., Ann. Sci. Nat., Bot., sér. 2, 18(1): 14. 1842. (Montagne 1842a; Gradstein 2012)

Basionym: Jungermannia obscura Sw., Fl. Ind. Occid. 3: 1869. 1806. (Swartz 1806; Gradstein 2012)

≡Jubula obscura (Sw.) Nees & Mont., Ann. Sci. Nat., Bot., sér. 2, 5: 64. 1836.
- =Jungermannia arecae Spreng., Neue Entdeck. Pflanzenk. 2: 99. 1821. ≡Frullania arecae (Spreng.) Gottsche, Mexik. Leverm.: 236. 1863. (Gradstein 2012)
- =Jungermannia hians Lehm. & Lindenb., Nov. Stirp. Pug. 4: 55. 1832. ≡Frullania hians (Lehm. & Lindenb.) Lehm. & Lindenb., Syn. Hepat. (fasc. 3): 414. 1845. (Gottsche et al. 1844; Gradstein 2012)
- =Frullania hians var. javanica Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 3): 414. 1845. (Gottsche et al. 1844; Sukkharak 2018)
- =Frullania hians var. conferta Gottsche, Syn. Hepat.: 772. 1847. (Gottsche et al. 1844; Sukkharak 2018)
- =Frullania mundiana Lindenb. & Gottsche, Syn. Hepat.: 772. 1847. (Gottsche et al. 1844; Wigginton 2018)
- =Frullania wallichiana Mitt., J. Proc. Linn. Soc., Bot. 5: 118. 1861. (Hattori & Piippo 1986)
- =Frullania campanensis Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 16. 1884. (Spruce 1884–1885; Gradstein & Uribe-M. 2016)
- =Frullania hians var. crispa Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 20. 1884. (Spruce 1884–1885; Sukkharak 2018)
- =Frullania crispistipula Steph., Hedwigia 33: 137. 1894. (Wigginton 2018)
- =Frullania dentilobula Steph., Hedwigia 33: 137. 1894. (Wigginton 2018)
- =Frullania crispistipula Steph., Sp. Hepat. (Stephani) 4: 321. 1910, nom. illeg. (Wigginton 2018)
- =Frullania thomeensis Steph., Sp. Hepat. (Stephani) 4: 321. 1910. (Wigginton 2018)
- =Frullania glauca Steph., Sp. Hepat. (Stephani) 4: 333. 1910. (Sukkharak 2018)
- =Frullania itatiaja Steph., Sp. Hepat. (Stephani) 4: 334. 1910. (Sukkharak 2018)
- =Frullania indica Steph., Sp. Hepat. (Stephani) 4: 347. 1910. (Sukkharak 2018)
- =Frullania hosseana Steph., Sp. Hepat. (Stephani) 4: 348. 1910. (Sukkharak 2018) ≡Frullania wallichiana var. hosseana (Steph.) S. Hatt., J. Hattori Bot. Lab. 36: 135. 1972[1973].
- =Frullania crispata Steph., Sp. Hepat. (Stephani) 4: 355. 1910. (Sukkharak 2018)
- =Frullania fusiflora Steph., Biblioth. Bot. 87: 239. 1916. (Herzog 1916; Gradstein et al. 2003)
- =Frullania fusiloba Steph., Sp. Hepat. (Stephani) 6: 532. 1924. (Sukkharak 2018)
Frullania obscura (Sw.) Nees ex Mont. var. obscura
Frullania obscura var. spiniloba (Steph.) Hentschel & von Konrat, Phytotaxa 220(2): 136. 2015. (Hentschel et al. 2015)

Basionym: Frullania spiniloba Steph., Sp. Hepat. (Stephani) 4: 336. 1910. (Stephani 1912)

≡Frullania arecae var. spiniloba (Steph.) Yuzawa, J. Hattori Bot. Lab. 70: 269. 1991. (Yuzawa 1991)
- =Frullania berggrenii Steph., Biblioth. Bot. 87: 238. 1916. (Herzog 1916; Gradstein et al. 2003)
Frullania obscurifolia Mitt., Philos. Trans. 168: 400. 1879. (Mitten 1879)
- =Frullania borgenii Pearson, Forh. Vidensk.-Selsk. Kristiania 1890(2): 8. 1891. (Wigginton 2018)
- =Frullania angolensis Steph., Sp. Hepat. (Stephani) 4: 366. 1910. (Wigginton 2018)
- =Frullania cardotii Steph., Sp. Hepat. (Stephani) 4: 366. 1910. (Wigginton 2018)
- =Frullania vanderystii Steph., Sp. Hepat. (Stephani) 4: 366. 1910. (Wigginton 2018)
- =Frullania exigua Steph., Sp. Hepat. (Stephani) 4: 367. 1910. (Wigginton 2018)
- =Frullania cuculliloba Steph., Sp. Hepat. (Stephani) 4: 622. 1911. (Wigginton 2018)
Frullania obtusangula Hentschel & von Konrat, Phytotaxa 220(2): 137. 2015. (Hentschel et al. 2015)

Replaced synonym: Frullania formosae Steph., Sp. Hepat. (Stephani) 6: 539. 1924, nom. illeg. (Stephani 1925)
Frullania ocellata S. Hatt. & Kamim., J. Hattori Bot. Lab. 37: 531. 1973. (Hattori & Kamimura 1973)
Frullania odontostipa Spruce, Mem. Torrey Bot. Club 1: 120. 1890. (Spruce 1890)
Frullania okabea-nakamurae Kamim., Bull. Kochi Gakuen Junior Coll. 5: 79. 1974. (Kamimura 1974)
Frullania okinawensis Kamim., Misc. Bryol. Lichenol. 9: 90. 1982. (Kamimura 1982)
Frullania onraedtii Vanden Berghen, Bull. Jard. Bot. Natl. Belg. 46: 60. 1976. (Vanden Berghen 1976)
Frullania orbicularis Austin, Proc. Acad. Nat. Sci. Philadelphia 21(4): 227. 1869. (Austin 1869)
Frullania orientalis Sande Lac., Plagiochila Sandei: 10. 1856. (Dozy 1856)
- =Frullania obliqua Steph., Sp. Hepat. (Stephani) 4: 616. 1911. (Hattori & Piippo 1986)
Frullania orinocensis Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 30. 1884. (Spruce 1884–1885)
Frullania ornithocephala (Reinw., Blume & Nees) Nees, Syn. Hepat.: 425. 1845. (Gottsche et al. 1844)

Basionym: Jungermannia ornithocephala Reinw., Blume & Nees, Nova Acta Phys.-Med. Acad. Caes. Leop.-Carol. Nat. Cur. 12: 216. 1825. (Reinwardt et al. 1824; Sukkharak 2018)
- =Frullania ornithocephala f. magnilobula S. Hatt., J. Hattori Bot. Lab. 40: 491. 1976. (Hattori 1976d; Lee et al. 2022)
- =Frullania ornithocephala f. retusa S. Hatt., J. Hattori Bot. Lab. 40: 491. 1976. (Hattori 1976d; Lee et al. 2022)
Frullania ornithocephala var. major (Nees) Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 3): 425. 1845. (Gottsche et al. 1844; Söderström et al. 2010)

Basionym: Jungermannia ornithocephala var. major Nees, Enum. Pl. Crypt. Jav.: 47. 1830. (Nees von Esenbeck 1830)
Frullania ornithocephala (Reinw., Blume & Nees) Nees var. ornithocephala
Frullania ornithocephala var. pilosa Verd., Ann. Bryol. 2: 129. 1929. (Verdoorn 1929a; Söderström et al. 2010)
- =Frullania teres Sande Lac., Syn. Hepat. Jav.: 76. 1856[1857]. (Söderström et al. 2010) ≡Frullania ornithocephala f. teres (Sande Lac.) Verd., Ann. Bryol. 2: 129. 1929.
Frullania ornithocephala var. tuberculosa S. Hatt., J. Hattori Bot. Lab. 38: 179. 1974. (Hattori 1974b; Tan & Engel 1986)
Frullania osculatiana De Not., Jungerm. Amer. Pug.: 30. 1855. (De Notaris 1855)
Frullania osumiensis (S. Hatt.) S. Hatt., J. Hattori Bot. Lab. 16: 87. 1956. (Iwatsuki & Hattori 1956)

Basionym: Frullania hampeana var. osumiensis S. Hatt., Bull. Tokyo Sci. Mus. 11: 144. 1944. (Hattori 1944)
- =Frullania osumiensis var. orbiculata Kamim., J. Hattori Bot. Lab. 24: 39. 1961. (Yamada & Iwatsuki 2006)
- =Frullania kagoshimensis var. minor Kamim., J. Hattori Bot. Lab. 24: 45. 1961. (Yamada & Iwatsuki 2006)
- =Frullania osumiensis var. dentata Kamim., Bull. Kochi Gakuen Junior Coll. 2: 21. 1971. (Yamada & Iwatsuki 2006)
Frullania pachyderma S. Hatt., J. Hattori Bot. Lab. 44: 525. 1978. (Hattori 1978)
†Frullania palaeoafricana K. Feldberg, Bouju, Schäf.-Verw. & A.R. Schmidt, J. Syst. Evol. 60(4): 940. 2022[2021]. (Bouju et al. 2022)
Frullania pallidevirens Steph., Sp. Hepat. (Stephani) 4: 454. 1910. (Stephani 1912)
Frullania pallidula S. Hatt., Beih. Nova Hedwigia 90: 152. 1988. (Hattori 1988a)
Frullania pancheri Gottsche, Hedwigia 33(3): 159. 1894. (Stephani 1894)
Frullania papillata Steph., Sp. Hepat. (Stephani) 4: 615. 1911. (Stephani 1912)
Frullania papillilobula S. Hatt., Bull. Natl. Sci. Mus. Tokyo, B 1: 140. 1975. (Hattori 1975b)
Frullania papuana Verd., Nova Guinea 14: 544. 1930. (Verdoorn 1930b)
- =Frullania cordistipula subsp. subapiculata S. Hatt., J. Hattori Bot. Lab. 36: 421. 1972[1973]. (Hattori & Piippo 1986)
- =Frullania papuana var. latistipula S. Hatt., J. Hattori Bot. Lab. 38: 251. 1974. (Hattori 1974d) ≡Frullania sinuata var. latistipula (S. Hatt.) S. Hatt., J. Hattori Bot. Lab. 39: 304. 1975. (Hattori 1975f) ≡Frullania falsipapuana S. Hatt., J. Hattori Bot. Lab. 51: 217. 1982. (Hattori 1982d; Hattori & Piippo 1986)
Frullania papulosa Steph., Sp. Hepat. (Stephani) 4: 654. 1911. (Stephani 1912)
Frullania paradoxa Lehm. & Lindenb., Syn. Hepat.: 462. 1845. (Gottsche et al. 1844)
- =Frullania ulotricha Taylor, London J. Bot. 5: 405. 1846. (Taylor 1846; Gradstein & Uribe-M. 2016)
- =Frullania flexicaulis Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 53. 1884. (Spruce 1884–1885; Hentschel et al. 2015)
- =Frullania parviflora Steph., Sp. Hepat. (Stephani) 4: 503. 1911. (Stotler 1969)
- =Frullania alpina Steph., Sp. Hepat. (Stephani) 4: 533. 1911. (Winter 2020)
- =Frullania rufescens Steph., Sp. Hepat. (Stephani) 4: 534. 1911. (Stotler 1969)
- =Frullania trollii Herzog, Beih. Bot. Centralbl., Abt. 2, 61B(3): 575. 1942. (Gradstein 2021)
- =Frullania paradoxa f. cornutistipula Herzog, Svensk Bot. Tidskr. 46(1): 85. 1952. (Herzog 1952a)
Frullania paranensis Steph., Sp. Hepat. (Stephani) 4: 607. 1911. (Stephani 1912; Söderström et al. 2016)
Frullania parhamii (R.M. Schust.) R.M. Schust. ex von Konrat, L. Söderstr. & A. Hagborg, Telopea 13(3): 407. 2011. (Söderström et al. 2011b)

Basionym: Neohattoria parhamii R.M. Schust., J. Hattori Bot. Lab. 26: 243. 1963. (Schuster 1963)

≡Schusterella parhamii (R.M. Schust.) S. Hatt., Sharp & Mizut., Jap. J. Bot. 20: 331. 1972. (Hattori et al. 1972)
Frullania pariharii S. Hatt. & Thaithong, J. Jap. Bot. 53: 130. 1978. (Hattori & Thaithong 1978a)
Frullania pariharii f. intermedia S. Hatt. & Thaithong, J. Hattori Bot. Lab. 44: 188. 1978. (Hattori & Thaithong 1978c; Yuzawa & Koike 1994)
Frullania pariharii S. Hatt. & Thaithong f. pariharii
†Frullania partita Ya Li bis, Y.D. Wang, H. Schneid. & P.C. Wu, Cretaceous Res. 108(104341): 2. 2020[2019]. (Li et al. 2020)
Frullania parvifolia Steph., Sp. Hepat. (Stephani) 4: 354. 1910. (Stephani 1912)
Frullania parvistipula Steph., Sp. Hepat. (Stephani) 4: 397. 1910. (Stephani 1912; Mamontov et al. 2024)

≡Frullania eboracensis subsp. parvistipula (Steph.) R.M. Schust., Hepat. Anthocerotae N. Amer. 5: 142. 1992. (Schuster 1992)
Frullania patagonica Steph., Kongl. Svenska Vetensk. Acad. Handl., n.s. 46(9): 88. 1911. (Stephani 1911)
Frullania patula Mitt., Fl. Nov.-Zel. 2: 159. 1855. (Hooker 1855)
- =Frullania kirkii Steph., Hedwigia 33(3): 145. 1894. (Glenny 1998)
Frullania pauciramea Steph., Sp. Hepat. (Stephani) 4: 458. 1911. (Stephani 1912)

≡Frullania nobilis subsp. pauciramea (Steph.) S. Hatt., J. Hattori Bot. Lab. 44: 536. 1978. (Hattori 1978)
Frullania pauciramea Steph. var. pauciramea
Frullania pauciramea var. pauciramella S. Hatt. & Piippo, Acta Bot. Fenn. 133: 50. 1986. (Hattori & Piippo 1986; Söderström et al. 2016)
Frullania paucirameoides S. Hatt. & Piippo, Acta Bot. Fenn. 133: 51. 1986. (Hattori & Piippo 1986)
Frullania pearceana Steph., Sp. Hepat. (Stephani) 4: 515. 1911. (Stephani 1912)
Frullania pedicellata Steph., Bull. Herb. Boissier 5: 90. 1897. (Stephani 1897b)
- =Frullania kochiensis Steph., Sp. Hepat. (Stephani) 4: 400. 1910. (Yamada & Iwatsuki 2006) ≡Frullania pedicellata f. kochiensis (Steph.) Kamim., Contr. Fl. Hepat. Shikoku.: 130. 1952.
Frullania pentapleura Taylor, London J. Bot. 5: 402. 1846. (Taylor 1846)
- =Frullania wildii Steph., Hedwigia 33: 169. 1894. (von Konrat & Braggins 2001)
- =Frullania quinqueplicata Steph., Sp. Hepat. (Stephani) 4: 356. 1910. (Hamlin 1972)
Frullania peruviana Gottsche, Syn. Hepat.: 465. 1846. (Gottsche et al. 1844; Uribe-M. 2008)
- =Frullania haeckeriana Lindenb., Syn. Hepat.: 465. 1846. (Gottsche et al. 1844; Uribe-M. 2008)
- =Frullania atrosanguinea Taylor ex Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 39. 1884. (Uribe-M. 2008)
- =Frullania piliflora Steph., Sp. Hepat. (Stephani) 4: 598. 1911. (Uribe-M. 2008)
- =Frullania remotifolia Steph., Sp. Hepat. (Stephani) 4: 601. 1911. (Uribe-M. 2008)
- =Frullania mathanii Steph., Sp. Hepat. (Stephani) 4: 602. 1911. (Uribe-M. 2008)
- =Frullania piliflora var. appendiculata Herzog, Rev. Bryol. Lichénol. 20(1–2): 129. 1951[1952]. (Söderström et al. 2023)
Frullania phalangiflora Steph., Biblioth. Bot. 87: 247. 1916. (Herzog 1916)
- =Frullania bakeri Steph., Biblioth. Bot. 87: 243. 1916. (Herzog 1916; Uribe-M. 2008)
Frullania physantha Mitt., J. Proc. Linn. Soc., Bot. 5: 121. 1861. (Mitten 1861)
Frullania pilibracteola S. Hatt., J. Hattori Bot. Lab. 43: 428. 1977. (Hattori 1977a)
Frullania pilistipula Steph., Sp. Hepat. (Stephani) 4: 648. 1911. (Stephani 1912)
Frullania piptophylla S. Hatt., J. Hattori Bot. Lab. 47: 87. 1980. (Hattori 1980d)
Frullania piptophylla var. minor S. Hatt., J. Hattori Bot. Lab. 60: 247. 1986. (Hattori 1986c; Akiyama 2009)
Frullania piptophylla S. Hatt. var. piptophylla
Frullania piptophylloides S. Hatt., J. Hattori Bot. Lab. 47: 90. 1980. (Hattori 1980d)
Frullania pittieri Steph., Bull. Soc. Roy. Bot. Belgique 31: 177. 1892. (Stephani 1892)
Frullania plana Sull., Mem. Amer. Acad. Arts, n.s. 4(1): 175. 1849[1850]. (Sullivant 1849)
Frullania planifolia Steph., Sp. Hepat. (Stephani) 4: 337. 1910. (Stephani 1912)
Frullania platycalyx Herzog, Feddes Repert. Spec. Nov. Regni Veg. 55: 10. 1952. (Herzog 1952b)
Frullania plicata Hentschel & von Konrat, Phytotaxa 220(2): 137. 2015. (Hentschel et al. 2015)

Replaced synonym: Frullania acutiloba Gerola, Lav. Bot. Ist. Bot. Univ. Padova 12: 477. 1947, nom. illeg. (Gerola 1947)
Frullania pluricarinata Gottsche, Ann. Sci. Nat., Bot., sér. 5, 1: 168. 1864. (Gottsche 1864)
- =Frullania subalpina Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 28. 1884. (Spruce 1884–1885; Yuzawa 1991)
- =Frullania grandiloba Steph., Sp. Hepat. (Stephani) 6: 532. 1924. (Yuzawa 1991)
Frullania pocsantha Thaithong & S. Hatt., Bull. Natl. Sci. Mus. Tokyo, B 3: 149. 1977. (Thaithong & Hattori 1977)
Frullania polyptera Taylor, London J. Bot. 5: 401. 1846. (Taylor 1846)
- =Frullania subinflata Mitt., J. Proc. Linn. Soc., Bot. 5: 119. 1861. (Hattori 1975c)
- =Frullania gracillima Steph., Sp. Hepat. (Stephani) 4: 437. 1910. (Hattori 1980d)
- =Frullania pyriflora Steph., Sp. Hepat. (Stephani) 4: 443. 1910. (Sukkharak 2018)
- =Frullania gollanii Steph., Sp. Hepat. (Stephani) 4: 445. 1910. (Hattori & Lin 1985b)
Frullania polyptera var. angustata (Mitt.) S. Hatt., Bull. Natl. Sci. Mus. Tokyo, B 1: 74. 1975. (Hattori 1975c; Long & Rubasinghe 2014)

Basionym: Frullania angustata Mitt., J. Proc. Linn. Soc., Bot. 5: 122. 1861. (Mitten 1861)
Frullania polyptera Taylor var. polyptera
Frullania polysticta Lindenb., Syn. Hepat.: 440. 1845. (Gottsche et al. 1844)
- =Frullania bryhnii Müll. Frib., Lebermoose 6(2): 618. 1915. (Ros et al. 2007)
Frullania ponapensis S. Hatt. & N. Koike, J. Hattori Bot. Lab. 75: 186. 1994. (Koike 1994)
Frullania pran-nathii M. Dey & D.K. Singh, J. Jap. Bot. 83: 281. 2008. (Dey & Singh 2008)
Frullania pringlei Fulford & Sharp, Mem. New York Bot. Gard. 63: 45. 1990. (Fulford & Sharp 1990)

Replaced synonym: Frullania spicata Steph., Sp. Hepat. (Stephani) 4: 392. 1910, nom. illeg. (Stephani 1912)
Frullania probosciphora Taylor, London J. Bot. 5: 402. 1846. (Taylor 1846)
- =Frullania reptans Mitt., Fl. Nov.-Zel. 2: 161. 1855. (Hooker 1855; Bibby 1955)
- =Frullania maccrantica Gottsche, Linnaea 28(5): 559. 1856[1857]. (Scott & Bradshaw 1985)
- =Frullania falsa Steph., Sp. Hepat. (Stephani) 4: 413. 1910. (Scott & Bradshaw 1985) ≡Frullania pentapleura subsp. falsa (Steph.) S. Hatt., Beih. Nova Hedwigia 90: 153. 1988. (Hattori 1988a)
Frullania prominula S. Hatt. & Streimann, J. Hattori Bot. Lab. 59: 112. 1985. (Hattori & Streimann 1985)
Frullania propaginea S. Hatt. & Streimann, J. Hattori Bot. Lab. 59: 114. 1985. (Hattori & Streimann 1985)
Frullania pseudericoides S. Hatt., J. Hattori Bot. Lab. 51: 256. 1982. (Hattori 1982d)

Replaced synonym: Frullania sharpii subsp. subrostrata S. Hatt., J. Hattori Bot. Lab. 38: 265. 1974. (Hattori 1974d)
Frullania pseudoalstonii Tsudo & J. Haseg., Bryol. Res. 9: 44. 2006. (Tsudo & Hasegawa 2006)
Frullania pseudoinflata Mamontov, Vilnet & Konstant., Nova Hedwigia Beih. 150: 227. 2020. (Mamontov et al. 2020b)
Frullania pseudomeyeniana S. Hatt., J. Hattori Bot. Lab. 60: 231. 1986. (Hattori 1986b)
Frullania pseudomonocera S. Hatt., J. Hattori Bot. Lab. 60: 216. 1986. (Hattori 1986b)
Frullania pseudoschensiana S. Hatt., J. Hattori Bot. Lab. 47: 101. 1980. (Hattori 1980d)
Frullania pseudoschensiana var. darjeelingensis S. Hatt., J. Hattori Bot. Lab. 49: 149. 1981. (Hattori 1981a; Yuzawa & Koike 1994)
Frullania pseudoschensiana S. Hatt. var. pseudoschensiana
Frullania ptychantha Mont., Ann. Sci. Nat., Bot., sér. 2, 19: 257. 1843. (Montagne 1843)

≡Jungermannia ptychantha (Mont.) Hook. f. & Taylor, Fl. Antarct. 1: 163. 1845.
Frullania pulchella Herzog, Rev. Bryol. Lichénol. 23(1–2): 60. 1954. (Herzog 1954)
Frullania pullei Verd., Nova Guinea 14: 542. 1930. (Verdoorn 1930b; Hattori & Piippo 1986)
- =Frullania nobilis var. intermedia S. Hatt., J. Hattori Bot. Lab. 37: 116. 1973. (Hattori & Piippo 1986) ≡Frullania ornithocephala var. intermedia (S. Hatt.) S. Hatt., J. Hattori Bot. Lab. 39: 297. 1975.
Frullania pulogensis Steph., Sp. Hepat. (Stephani) 4: 545. 1911. (Stephani 1912)
Frullania punctata Reimers, Hedwigia 71: 36. 1931. (Reimers 1931)
Frullania purpurea Steph., Sp. Hepat. (Stephani) 4: 626. 1911. (Stephani 1912)
Frullania pusilla Mitt., Fl. Vit.: 417. 1871[1873]. (Mitten 1873)
- =Frullania bescherellei Steph., Hedwigia 33(3): 140. 1894. (Thouvenot et al. 2011)
- =Frullania ligulifolia Steph., Sp. Hepat. (Stephani) 4: 466. 1911. (Thouvenot et al. 2011)
Frullania pycnantha (Hook. f. & Taylor) Taylor ex Gottsche, Lindenb. & Nees, Syn. Hepat.: 411. 1845. (Gottsche et al. 1844)

Basionym: Jungermannia pycnantha Hook. f. & Taylor, London J. Bot. 3: 566. 1844. (Hooker & Taylor 1844b)
- =Frullania echinella Colenso, Trans. & Proc. New Zealand Inst. 20: 252. 1888. (Hamlin 1972)
- =Frullania diffusa Colenso, Trans. & Proc. New Zealand Inst. 21: 74. 1889, nom. illeg. (Hamlin 1972)
- =Frullania banksiana Colenso, Trans. & Proc. New Zealand Inst. 21: 75. 1889. (Glenny 1998)
- =Frullania variabilis Steph., Sp. Hepat. (Stephani) 4: 420. 1910. (Brown et al. 1992)
- =Frullania laciniaeflora Pearson, Univ. Calif. Publ. Bot. 10(4): 378. 1923. (Hamlin 1972)
†Frullania pycnoclada Grolle, Liverw. Baltic Bitterfeld Amber: 25. 2004. (Grolle & Meister 2004)
Frullania pyricalycina Steph., Sp. Hepat. (Stephani) 4: 394. 1910. (Stephani 1912)
Frullania queenslandica Steph., Sp. Hepat. (Stephani) 4: 424. 1910. (Stephani 1912)
Frullania quillotensis (Nees & Mont.) Nees & Mont., Syn. Hepat. (fasc. 3): 427. 1845. (Gottsche et al. 1844)

Basionym: Jubula quillotensis Nees & Mont., Ann. Sci. Nat., Bot., sér. 2, 5: 64. 1836. (Nees von Esenbeck & Montagne 1836)
Frullania ramuligera (Nees) Mont., Ann. Sci. Nat., Bot., sér. 2, 18: 14. 1842. (Montagne 1842a)

Basionym: Jungermannia ramuligera Nees, Enum. Pl. Crypt. Jav.: 52. 1830. (Nees von Esenbeck 1830)
- =Frullania pinnulata Sande Lac., Ned. Kruidk. Arch. 3(4): 423. 1855. (Sukkharak 2018)
- =Frullania uvifera Horik., J. Sci. Hiroshima Univ., Ser. B, Div. 2, Bot. 2: 239. 1934. (Horikawa 1934; Yamada & Iwatsuki 2006)
Frullania rappii A. Evans, Bryologist 15(2): 22. 1912. (Evans 1912; Mamontov et al. 2020b)
Frullania recurvistipula S. Hatt., Bull. Natl. Sci. Mus. Tokyo, B 1: 114. 1975. (Hattori 1975a)
Frullania reflexistipula Sande Lac., Ned. Kruidk. Arch. 3(4): 422. 1855. (Sande Lacoste 1855)
- =Frullania setulosa Ångstr., Öfvers. Kongl. Vetensk.-Akad. Förh. 30(5): 136. 1873. (Ångström 1873; Miller et al. 1983)
- =Frullania floribunda Steph., Hedwigia 33(3): 144. 1894. (Thouvenot et al. 2011)
- =Frullania philippinensis Steph., Sp. Hepat. (Stephani) 4: 468. 1911. (Thouvenot et al. 2011)
- =Frullania reflexistipula var. novocaledonica S. Hatt., J. Hattori Bot. Lab. 43: 431. 1977. (Hattori 1977a; Bardat et al. 2021)
Frullania reflexistipula Sande Lac. var. reflexistipula
Frullania reflexistipula var. squarrosa S. Hatt. & Piippo, Acta Bot. Fenn. 133: 54. 1986. (Hattori & Piippo 1986; Söderström et al. 2016)
Frullania regularis Schiffn., Forschungsr. Gazelle 4(Lebermoose): 38. 1890. (Schiffner 1889)
- =Frullania zahnii Steph., Sp. Hepat. (Stephani) 4: 578. 1917. (Hattori & Piippo 1986)
Frullania reicheana Steph., Sp. Hepat. (Stephani) 4: 427. 1910. (Stephani 1912)
Frullania reimersii Verd., Nova Guinea 14: 544. 1930. (Verdoorn 1930b)
Frullania remotidens S. Hatt., J. Hattori Bot. Lab. 51: 257. 1982. (Hattori 1982d)
Frullania remotiloba Steph., Hedwigia 33(3): 152. 1894. (Stephani 1894)
Frullania repandistipula Sande Lac., Ned. Kruidk. Arch. 3(4): 422. 1855. (Sande Lacoste 1855)
- =Frullania curiosissima Horik., J. Jap. Bot. 12: 667. 1936. (Yamada & Iwatsuki 2006)
- =Frullania tixieriana Vanden Berghen, Bull. Jard. Bot. Natl. Belg. 46: 27. 1976. (Vanden Berghen 1976; Wigginton 2018)
Frullania repandistipula subsp. queenslandica S. Hatt., Mem. New York Bot. Gard. 45: 550. 1987. (Hattori 1987a; Söderström et al. 2016)
Frullania repandistipula Sande Lac. subsp. repandistipula
Frullania repandistipula subsp. spinibractea S. Hatt., Bull. Natl. Sci. Mus. Tokyo, B 1: 150. 1975. (Hattori 1975b)
Frullania retusa Mitt., J. Proc. Linn. Soc., Bot. 5: 119. 1861. (Mitten 1861)
Frullania retusa var. gymnantha S. Hatt. & Thaithong, J. Jap. Bot. 53: 131. 1978. (Hattori & Thaithong 1978a; Bapna & Kachroo 2000)
Frullania retusa var. hirsuta S. Hatt. & Thaithong, J. Hattori Bot. Lab. 44: 191. 1978. (Hattori & Thaithong 1978c; Bapna & Kachroo 2000)
Frullania retusa Mitt. var. retusa
Frullania rhystocolea Herzog, Symb. Sin. 5: 39. 1930. (Nicholson et al. 1930)
- =Frullania rhystocolea var. parva S. Hatt., Fl. E. Himalaya 2: 237. 1971. (Hattori 1971; Hattori & Lin 1985b)
Frullania rhytidantha S. Hatt., J. Hattori Bot. Lab. 47: 97. 1980. (Hattori 1980d)
†Frullania riclefgrollei Mamontov, Heinrichs, Schäf.-Verw., Ignatov & Perkovsky, Rev. Palaeobot. Palynol. 223: 32. 2015. (Mamontov et al. 2015)
Frullania rigescens Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 52. 1884. (Spruce 1884–1885)
Frullania rigida Steph., Sp. Hepat. (Stephani) 4: 371. 1910. (Stephani 1912)
Frullania ringens Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 17. 1884. (Spruce 1884–1885)
Frullania riojaneirensis (Raddi) Ångstr., Öfvers. Kongl. Vetensk.-Akad. Förh. 33(7): 88. 1876. (Ångström 1876)

Basionym: Frullanoides riojaneirensis Raddi, Critt. Bras.: 13. 1822. (Raddi 1822)
- =Jungermannia galeata Reinw., Blume & Nees, Nova Acta Phys.-Med. Acad. Caes. Leop.-Carol. Nat. Cur. 12: 215. 1825. ≡Frullania galeata (Reinw., Blume & Nees) Dumort., Recueil Observ. Jungerm.: 13. 1835. (Thouvenot et al. 2011) ≡Frullania sebastianopolitana var. galeata (Reinw., Blume & Nees) Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 3): 413. 1845.
- =Frullania sebastianopolitana Lindenb., Syn. Hepat.: 412. 1845. (Sukkharak 2018)
- =Frullania arietina Taylor ex Gottsche, Lindenb. & Nees, Syn. Hepat.: 413. 1845. (Stotler & Crandall-Stotler 2017)
- =Frullania sebastianopolitana var. tumidula Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 5): 771. 1847. (Yuzawa 1991)
- =Frullania tenera Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 23. 1884. (Spruce 1884–1885; Sukkharak 2018)
- =Frullania leptomitra Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 25. 1884. (Spruce 1884–1885; Sukkharak 2018)
- =Frullania arietina var. pluricarinata Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 26. 1884. (Spruce 1884–1885; Yuzawa 1991)
- =Frullania africana Steph., Hedwigia 30: 269. 1891. (Wigginton 2018)
- =Frullania hypogyna Steph., Hedwigia 33(3): 138. 1894. (Sukkharak 2018)
- =Frullania truncatiloba Steph., Sp. Hepat. (Stephani) 4: 322. 1910. (Wigginton 2018)
- =Frullania andina Steph., Sp. Hepat. (Stephani) 4: 326. 1910. (Gradstein et al. 2003)
- =Frullania warmingiana Steph., Sp. Hepat. (Stephani) 4: 330. 1910. (Gradstein & Costa 2003)
- =Frullania dussiana Steph., Sp. Hepat. (Stephani) 4: 332. 1910. (Sukkharak 2018)
- =Frullania martinica Steph., Sp. Hepat. (Stephani) 4: 335. 1910. (Sukkharak 2018)
- =Frullania cubensis Steph., Sp. Hepat. (Stephani) 4: 337. 1910. (Söderström et al. 2011a)
- =Frullania commutata Steph., Sp. Hepat. (Stephani) 4: 349. 1910. (Söderström et al. 2010)
- =Frullania herzogiana Steph., Sp. Hepat. (Stephani) 4: 673. 1911. (Söderström et al. 2023)
- =Frullania surinamensis Steph., Sp. Hepat. (Stephani) 4: 674. 1911. (Sukkharak 2018)
- =Frullania inflata Herzog, Biblioth. Bot. 88: 31. 1920[1921], nom. illeg. (Gradstein et al. 2003)
- =Frullania latilobula Herzog, Beih. Bot. Centralbl., Abt. 2, 61B(3): 570. 1942. (Gradstein et al. 2003)
Frullania riojaneirensis var. megalostipa (Spruce) Gradst., Mem. New York Bot. Gard. 121: 379. 2021. (Gradstein 2021)

Basionym: Frullania megalostipa Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 15. 1884. (Spruce 1884–1885; Gradstein 2021)
- =Frullania amentacea Herzog, Svensk Bot. Tidskr. 46: 83. 1952. (Yuzawa 1991)
Frullania riojaneirensis (Raddi) Ångstr. var. riojaneirensis
Frullania riparia Hampe ex Lehm., Nov. Stirp. Pug. 7: 14. 1838. (Lehmann 1838)

≡Frullania aeolotis var. riparia (Hampe ex Lehm.) Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 3): 417. 1845, nom. illeg.
- =Frullania riparia var. laxior Lehm., Nov. Stirp. Pug. 7: 14. 1838. (Lehmann 1838)
- =Frullania aeolotis var. biformis Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 3): 418. 1845. (Gottsche et al. 1844)
- =Frullania aeolotis var. obliqua Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 3): 418. 1845. (Gottsche et al. 1844)
- =Frullania aeolotis var. singapurensis Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 3): 418. 1845. (Gottsche et al. 1844)
- =Frullania cesatiana De Not., Mem. Reale Accad. Sci. Torino, ser. 2, 22: 383. 1865. (Ros et al. 2007)
Frullania rizalii Piippo & S. Hatt., J. Hattori Bot. Lab. 72: 119. 1992. (Piippo & Tan 1992)
Frullania rostellata Mitt., Handb. N. Zeal. Fl. 2: 755. 1867. (Hooker 1867)
Frullania rostrata (Hook. f. & Taylor) Gottsche, Lindenb. & Nees, Syn. Hepat.: 445. 1845. (Gottsche et al. 1844)

Basionym: Jungermannia rostrata Hook. f. & Taylor, London J. Bot. 4: 87. 1845. (Hooker & Taylor 1845)
- =Frullania megalocarpa Taylor, London J. Bot. 5: 404. 1846. (Taylor 1846; Scott & Bradshaw 1985)
- =Frullania diplota Taylor, London J. Bot. 5: 405. 1846. (Taylor 1846; Scott & Bradshaw 1985)
- =Frullania minutistipula Steph., J. & Proc. Roy. Soc. New South Wales 48(1–2): 108. 1914. (Scott & Bradshaw 1985)
- =Neohattoria australis R.M. Schust., J. Hattori Bot. Lab. 33: 285. 1970. ≡Schusterella australis (R.M. Schust.) S. Hatt., Sharp & Mizut., Jap. J. Bot. 20: 331. 1972. (Hattori et al. 1972) ≡Frullania novaustralis S. Hatt., J. Hattori Bot. Lab. 36: 443. 1972[1973]. (Glenny 1998)
- =Frullania junghuhniana subsp. wattsii S. Hatt., J. Hattori Bot. Lab. 36: 130. 1972[1973]. (Hattori 1979a)
†Frullania rovnoi Mamontov, Hentschel, Konstant., Perkovsky & Ignatov, J. Bryol. 39(4): 337. 2017. (Mamontov et al. 2017)
Frullania rubella Gottsche ex Steph., Hedwigia 28: 159. 1889. (Stephani 1889)
- =Frullania filipendula Steph., Sp. Hepat. (Stephani) 4: 419. 1910. (Scott & Bradshaw 1985)
Frullania rubella var. elongata (Steph.) S. Hatt., J. Hattori Bot. Lab. 54: 166. 1983. (Hattori 1983; Söderström et al. 2016)

Basionym: Frullania elongata Steph., Sp. Hepat. (Stephani) 4: 423. 1910. (Stephani 1912)
Frullania rubella Gottsche ex Steph. var. rubella
Frullania rudolfiana S. Hatt., J. Hattori Bot. Lab. 36: 437. 1972[1973]. (Hattori 1972c)
- =Frullania perminuta var. angulistipula S. Hatt., J. Hattori Bot. Lab. 38: 255. 1974. (Hattori 1974d; Hattori & Piippo 1986)
Frullania rupicola Steph., Sp. Hepat. (Stephani) 6: 534. 1924. (Stephani 1925)
Frullania sabahana S. Hatt., J. Hattori Bot. Lab. 40: 493. 1976. (Hattori 1976d)
Frullania sabaliana R.M. Schust., Phytologia 53(5): 365. 1983. (Schuster 1983)
Frullania sackawana Steph., Bull. Herb. Boissier 5: 91. 1897. (Stephani 1897b)
- =Frullania sackawana var. minor Kamim., Misc. Bryol. Lichenol. 9: 91. 1982. (Kamimura 1982; Yamada & Iwatsuki 2006)
Frullania saepisdentata S. Hatt. & Streimann, J. Hattori Bot. Lab. 59: 116. 1985. (Hattori & Streimann 1985)
Frullania saipanensis S. Hatt. & N. Koike, J. Hattori Bot. Lab. 75: 188. 1994. (Koike 1994)
Frullania sandvicensis Ångstr., Öfvers. Kongl. Vetensk.-Akad. Förh. 29(4): 28. 1872. (Ångström 1872; So & Wang 2006)
- =Frullania aongstroemii A. Evans, Trans. Connecticut Acad. Arts Sci. 10: 395. 1900. (So & Wang 2006)
- =Frullania elliptica Steph., Sp. Hepat. (Stephani) 4: 677. 1911. (So & Wang 2006)
- =Frullania kaluensis Steph., Sp. Hepat. (Stephani) 6: 541. 1924. (So & Wang 2006)
Frullania sarawakensis S. Hatt., J. Hattori Bot. Lab. 40: 496. 1976. (Hattori 1976d)
Frullania saroltae Pócs, Acta Biol. Pl. Agr. 12(1): 26. 2024. (Pócs 2024)
Frullania saxicola Austin, Proc. Acad. Nat. Sci. Philadelphia 21(4): 225. 1869. (Austin 1869; Mamontov et al. 2020b)
Frullania scalaris S. Hatt., J. Hattori Bot. Lab. 43: 432. 1977. (Hattori 1977a)
Frullania scandens Mont., Ann. Sci. Nat., Bot., sér. 2, 19: 258. 1843. (Montagne 1843)

≡Jungermannia scandens (Mont.) Hook. f. & Taylor, Fl. Antarct. 1: 165. 1845.
- =Frullania subdeplanata Steph., Sp. Hepat. (Stephani) 4: 408. 1910. (Hodgson 1962)
Frullania schaefer-verwimpii Yuzawa & S. Hatt., J. Jap. Bot. 64: 37. 1989. (Yuzawa & Hattori 1989)
Frullania schensiana C. Massal., Mem. Accad. Verona 73(2): 40. 1897. (Massalongo 1897)
- =Frullania ontakensis Steph., Sp. Hepat. (Stephani) 4: 404. 1910. (Yamada & Iwatsuki 2006) ≡Frullania schensiana subsp. ontakensis (Steph.) S. Hatt., Bull. Natl. Sci. Mus. Tokyo, B 1: 163. 1975. (Hattori 1975b)
- =Frullania ontakensis f. punctata S. Hatt., J. Jap. Bot. 20: 156. 1944. ≡Frullania schensiana var. punctata (S. Hatt.) Kamim., J. Hattori Bot. Lab. 24: 33. 1961. (Katagiri & Furuki 2018)
Frullania schiffneri Verd., Ann. Bryol. 2: 150. 1929. (Verdoorn 1929a)
Frullania schimperi Nees, Syn. Hepat.: 454. 1845[1844]. (Gottsche et al. 1844)
- =Frullania rupestris Steph., Hedwigia 33(3): 159. 1894. (Wigginton 2018)
Frullania schimperi var. laciniata Vanden Berghen, Bull. Jard. Bot. Natl. Belg. 46: 59. 1976. (Vanden Berghen 1976; Wigginton 2018)
Frullania schimperi Nees var. schimperi
†Frullania schmalhausenii Mamontov, Ignatov & Perkovsky, Paleontol. J. 53(10): 1100. 2019[2020]. (Mamontov et al. 2019)
†Frullania schumannii (Casp.) Grolle, Occas. Pap. Farlow Herb. Cryptog. Bot. 16: 102. 1981. (Grolle 1981)

Basionym: †Lejeunea schumannii Casp., Schriften Königl. Phys.-Ökon. Ges. Königsberg 27: 3. 1887. (Caspary 1887; Grolle 1981)
- =†Frullania scyphoides Mägd., Ber. Deutsch. Bot. Ges. 70: 434. 1957. (Grolle 1981)
Frullania schusteri S. Hatt., Beih. Nova Hedwigia 90: 154. 1988. (Hattori 1988a)
Frullania schusteriana S. Hatt., J. Hattori Bot. Lab. 36: 411. 1972[1973]. (Hattori 1972c)
Frullania scottiana S. Hatt., Mem. New York Bot. Gard. 45: 551. 1987. (Hattori 1987a)
Frullania selwyniana Pearson, List Canad. Hepat.: 1. 1890. (Pearson 1890)
- =Frullania sullivantiae Austin, Bull. Torrey Bot. Club 3(3): 16. 1872, nom. illeg. (Austin 1872; Schuster 1992)
Frullania semienana Gola, Ann. Bot. (Rome) 13(1): 71. 1914. (Gola 1914a)
Frullania semivillosa Lindenb. & Gottsche, Syn. Hepat.: 774. 1847. (Gottsche et al. 1844)
- =Frullania semivillosa var. glabra Lindenb. & Gottsche, Syn. Hepat.: 774. 1847. (Gottsche et al. 1844)
Frullania sergioae Sim-Sim, Fontinha, Mues & Lion, Nova Hedwigia 71: 186. 2000. (Sim-Sim et al. 2000)
Frullania seriata Gottsche ex Steph., Hedwigia 28: 160. 1889. (Stephani 1889)
- =Frullania dietrichiana Steph., Sp. Hepat. (Stephani) 4: 423. 1910. (Hattori 1987a)
- =Frullania difficilis Steph., Sp. Hepat. (Stephani) 4: 425. 1910. (Hattori 1987a)
Frullania seriatifolia Steph., Hedwigia 33(3): 167. 1894. (Stephani 1894)
- =Frullania yulensis Steph., Sp. Hepat. (Stephani) 4: 536. 1911. (Hattori & Piippo 1986)
Frullania serrata Gottsche, Syn. Hepat.: 453. 1845. (Gottsche et al. 1844)
- =Jungermannia atrata var. stricta F. Weber, Hist. Musc. Hepat. Prodr. (Weber): 25. 1815. ≡Frullania stricta (F. Weber) Lindenb., Syn. Hepat.: 453. 1845. (Gottsche et al. 1844; Vanden Berghen 1976)
- =Frullania meteoroides Mitt., Bonplandia (Hannover) 10: 19. 1862. (Söderström et al. 2011b)
- =Frullania cordata Mitt., J. Linn. Soc., Bot. 7: 168. 1863. (Wigginton 2018)
- =Frullania mildbraedii Steph., Wiss. Ergebn. Deut. Zentr.-Afr. Exped., Bot.: 123. 1910. (Stephani 1910; Wigginton 2018)
- =Frullania boivinii Steph., Sp. Hepat. (Stephani) 4: 481. 1911. (Wigginton 2018)
- =Frullania lacerata Steph., Sp. Hepat. (Stephani) 4: 481. 1911. (Wigginton 2018)
- =Frullania conjugata Steph., Sp. Hepat. (Stephani) 4: 483. 1911. (Wigginton 2018)
- =Frullania grossispica Steph., Sp. Hepat. (Stephani) 4: 541. 1911. (Sukkharak 2018)
- =Frullania latistipula Steph., Sp. Hepat. (Stephani) 4: 544. 1911. (Thouvenot et al. 2011)
- =Frullania tahitensis Steph., Sp. Hepat. (Stephani) 4: 548. 1911. (Sukkharak 2018)
- =Frullania ballinensis Steph., Sp. Hepat. (Stephani) 4: 559. 1911. (Scott & Bradshaw 1985)
- =Frullania serrata f. crispulodentata Verd., Ann. Bryol. 2: 142. 1929. (Söderström et al. 2010)
- =Frullania serrata f. gracilior S. Hatt., J. Hattori Bot. Lab. 38: 172. 1974. (Hattori 1974b; Yamada & Iwatsuki 2006)
- =Frullania serrata f. vogelkopensis S. Hatt., J. Hattori Bot. Lab. 51: 224. 1982. (Hattori 1982d; Hattori & Piippo 1986)
Frullania serrata var. ceramensis S. Hatt., J. Hattori Bot. Lab. 60: 247. 1986. (Hattori 1986c; Akiyama 2009)
Frullania serrata subsp. grolleana (S. Hatt.) S. Hatt., J. Hattori Bot. Lab. 51: 225. 1982. (Hattori 1982d; Hattori & Piippo 1986)

Basionym: Frullania grolleana S. Hatt., J. Hattori Bot. Lab. 36: 416. 1972[1973]. (Hattori 1972c)
Frullania serrata var. hamatispina (S. Hatt.) S. Hatt., J. Hattori Bot. Lab. 51: 225. 1982. (Hattori 1982d; Hattori & Piippo 1986)

Basionym: Frullania serrata subsp. hamatispina S. Hatt., J. Hattori Bot. Lab. 38: 262. 1974. (Hattori 1974d)
Frullania serrata var. pertenuis (Nees) Gottsche, Lindenb. & Nees, Syn. Hepat.: 454. 1845. (Gottsche et al. 1844; Wigginton 2018)

Basionym: Jungermannia cordistipula var. pertenuis Nees, Enum. Pl. Crypt. Jav.: 49. 1830. (Nees von Esenbeck 1830)
- =Frullania johannensis Steph., Sp. Hepat. (Stephani) 4: 477. 1911. (Wigginton 2018)
Frullania serrata Gottsche subsp. serrata
Frullania serrata Gottsche var. serrata
Frullania serrata subsp. spinistipula S. Hatt., J. Hattori Bot. Lab. 51: 225. 1982. (Hattori 1982d; Hattori & Piippo 1986)

Replaced synonym: Frullania spinistipula S. Hatt., J. Hattori Bot. Lab. 36: 413. 1972[1973], nom. illeg. (Hattori 1972c)

≡Frullania spinosistipula S. Hatt., J. Hattori Bot. Lab. 37: 151. 1973.
Frullania serrifolia Steph., Sp. Hepat. (Stephani) 4: 526. 1911. (Stephani 1912)
Frullania setacea S. Hatt., J. Hattori Bot. Lab. 65: 447. 1988. (Hattori 1988b)
Frullania setchellii Pearson, Univ. Calif. Publ. Bot. 10: 326. 1923. (Pearson 1923; Hentschel et al. 2015)

≡Frullania falciloba var. setchellii (Pearson) E.A. Hodgs., Trans. & Proc. Roy. Soc. New Zealand 77(3): 367. 1949.
- =Frullania engelii S. Hatt., J. Hattori Bot. Lab. 54: 143. 1983. (Hattori 1983; Hentschel et al. 2015)
Frullania setigera Steph., Hedwigia 33: 159. 1894. (Stephani 1894)
Frullania shanensis Svihla, Bryologist 60(4): 359. 1957. (Svihla 1957)
- =Frullania kalawensis Svihla, Bryologist 61(4): 373. 1958[1959]. (Hattori & Thaithong 1978a)
Frullania sharpantha Udar & Ad. Kumar, Misc. Bryol. Lichenol. 9: 192. 1983. (Udar & Kumar 1983)
Frullania sharpii S. Hatt., J. Hattori Bot. Lab. 38: 180. 1974. (Hattori 1974b)
Frullania sheana S. Hatt., J. Hattori Bot. Lab. 45: 356. 1979. (Hattori 1979a)
†Frullania shewanensis K. Feldberg, Bouju, Schäf.-Verw. & A.R. Schmidt, J. Syst. Evol. 60(4): 937. 2022[2021]. (Bouju et al. 2022)
Frullania sikkimensis D. Singh & D.K. Singh, Liverw. Hornw. Fl. Sikkim I: 398. 2023. (Singh & Singh 2023)
Frullania simmondsii Steph., J. & Proc. Roy. Soc. New South Wales 48(1–2): 109. 1914. (Stephani & Watts 1914)
Frullania sinensis Steph., Nuovo Giorn. Bot. Ital., n.s. 13: 349. 1906. (Levier 1906)
Frullania sinskeana J.J. Engel & B.C. Tan, J. Hattori Bot. Lab. 60: 335. 1986. (Tan & Engel 1986)

Replaced synonym: Frullania spathulistipa Steph., Sp. Hepat. (Stephani) 4: 415. 1910, nom. illeg. (Stephani 1912)
Frullania sinuata Sande Lac., Ned. Kruidk. Arch. 3(4): 424. 1855. (Sande Lacoste 1855)
- =Frullania sinuata subsp. novoguinensis S. Hatt., J. Hattori Bot. Lab. 39: 301. 1975. (Hattori 1975f) ≡Frullania falsisinuata S. Hatt. & Piippo, Acta Bot. Fenn. 133: 28. 1986. (Hattori & Piippo 1986; Hentschel et al. 2015)
- =Frullania sinuata f. parvistylata S. Hatt., J. Hattori Bot. Lab. 39: 304. 1975. (Hattori 1975f; Hentschel et al. 2015) ≡Frullania falsisinuata f. parvistylata (S. Hatt.) S. Hatt. & Piippo, Acta Bot. Fenn. 133: 29. 1986. (Hattori & Piippo 1986)
- =Frullania falsisinuata var. crispidentata S. Hatt. & Piippo, Acta Bot. Fenn. 133: 29. 1986. (Hattori & Piippo 1986; Hentschel et al. 2015)
Frullania socotrana Mitt., Trans. Roy. Soc. Edinburgh 31: 335. 1888. (Mitten 1888)
- =Frullania purpureopicta Steph., Sp. Hepat. (Stephani) 4: 367. 1910. (Wigginton 2018)
- =Frullania bursicula Steph., Sp. Hepat. (Stephani) 4: 678. 1911. (Wigginton 2018)
- =Frullania dalleana Gerola, Lav. Bot. Ist. Bot. Univ. Padova 12: 477. 1947. (Wigginton 2018)
Frullania solanderiana Colenso, Trans. & Proc. New Zealand Inst. 21: 75. 1889. (Colenso 1889)
- =Frullania decurviloba Steph., Sp. Hepat. (Stephani) 4: 412. 1910. (Hamlin 1972)
- =Frullania obtusiloba Pearson, Univ. Calif. Publ. Bot. 10(4): 379. 1923. (Hattori 1983)
Frullania speciosa Herzog, Memoranda Soc. Fauna Fl. Fenn. 25: 59. 1950. (Herzog 1950)
Frullania spegazzinii M.E. Reiner, Bol. Soc. Argent. Bot. 25: 310. 1988. (Reiner 1988)
Frullania sphaerantha S. Hatt., J. Hattori Bot. Lab. 47: 99. 1980. (Hattori 1980d)
Frullania sphaerocephala Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 17. 1884. (Spruce 1884–1885)
- =Frullania lehmanniana Gottsche ex Steph., Sp. Hepat. (Stephani) 4: 334. 1910. (Gradstein & Uribe-M. 2016)
Frullania sphaerolobulata S.H. Lin, Tunghai J., 2, Coll. Sci. 38: 104. 1997. (Lin & Chen 1997)
Frullania spinifera Taylor, London J. Bot. 5: 407. 1846. (Taylor 1846)
Frullania spinigastria S. Hatt., J. Hattori Bot. Lab. 45: 358. 1979. (Hattori 1979a)
Frullania spiniplica S. Hatt., J. Hattori Bot. Lab. 36: 428. 1972[1973]. (Hattori 1972c)
Frullania spinistipula Steph., Sp. Hepat. (Stephani) 4: 463. 1911. (Stephani 1912)
Frullania spongiosa Steph., Hedwigia 33: 147. 1894. (Stephani 1894; Wigginton 2018)
- =Frullania colonica Steph., Sp. Hepat. (Stephani) 4: 373. 1910. (Wigginton 2018)
- =Frullania usambarensis Steph., Sp. Hepat. (Stephani) 4: 375. 1910. (Wigginton 2018)
- =Frullania bystroemii S.W. Arnell, Bot. Not. 114: 177. 1961. (Wigginton 2018)
Frullania squarrosula (Hook. f. & Taylor) Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 3): 412. 1845. (Gottsche et al. 1844)

Basionym: Jungermannia squarrosula Hook. f. & Taylor, London J. Bot. 4: 88. 1845. (Hooker & Taylor 1845)
- =Frullania rotundifolia Colenso, Trans. & Proc. New Zealand Inst. 19: 297. 1887. (Colenso 1887; Hamlin 1972)
- =Frullania viridis Colenso, Trans. & Proc. New Zealand Inst. 20: 252. 1888. (Hamlin 1972)
- =Frullania tongariroensis Colenso, Trans. & Proc. New Zealand Inst. 21: 73. 1889. (Hamlin 1972)
- =Frullania intermixta Colenso, Trans. & Proc. New Zealand Inst. 21: 74. 1889. (Hamlin 1972)
- =Frullania platyphylla Colenso, Trans. & Proc. New Zealand Inst. 21: 74. 1889. (Hamlin 1972)
- =Frullania cunninghamiana Colenso, Trans. & Proc. New Zealand Inst. 21: 75. 1889. (Hamlin 1972)
- =Frullania curvirostris Colenso, Trans. & Proc. New Zealand Inst. 21: 76. 1889. (Hamlin 1972)
- =Frullania polyclada Colenso, Trans. & Proc. New Zealand Inst. 21: 76. 1889. (Hamlin 1972)
- =Frullania ichthyostoma Colenso, Trans. & Proc. New Zealand Inst. 21: 77. 1889. (Hamlin 1972)
- =Frullania pulvinata Colenso, Trans. & Proc. New Zealand Inst. 21: 77. 1889. (Hamlin 1972)
- =Frullania caledonica Gottsche ex Steph., Hedwigia 33: 156. 1894. (Thouvenot et al. 2011)
- =Frullania silvestris Steph., Rev. Bryol. 35(2): 29. 1908. (Thouvenot et al. 2011)
- =Frullania microloba Steph., Sp. Hepat. (Stephani) 4: 437. 1910. (Thouvenot et al. 2011)
Frullania standaertii Steph., Sp. Hepat. (Stephani) 4: 342. 1910. (Stephani 1912)
- =Frullania alberti Steph., Biblioth. Bot. 87: 237. 1916. (Herzog 1916; Gradstein & Uribe-M. 2016)
- =Frullania arnellii Steph., Biblioth. Bot. 87: 241. 1916. (Herzog 1916; Yuzawa 1991)
- =Frullania arsenei Steph., Sp. Hepat. (Stephani) 6: 530. 1924. (Gradstein 2021)
- =Frullania hedbergii Vanden Berghen, Bull. Jard. Bot. Natl. Belg. 46: 211. 1976. (Yuzawa 1991)
Frullania steereana S. Hatt., Mem. New York Bot. Gard. 45: 553. 1987. (Hattori 1987a)
Frullania stenostipa Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 29. 1884. (Spruce 1884–1885)
Frullania stipatiloba Steph., Hedwigia 33: 168. 1894. (Stephani 1894)
- =Frullania patentiloba Steph., Kongl. Svenska Vetensk. Acad. Handl., n.s. 46: 89. 1911. (Yuzawa 1988)
- =Frullania bicornuta Steph., Sp. Hepat. (Stephani) 4: 665. 1911. (Hässel de Menéndez & Rubies 2009) ≡Frullania stipatiloba f. bicornuta (Steph.) Herzog, Nat. Hist. Juan Fernandez 2: 740. 1942.
Frullania streimannii S. Hatt., J. Hattori Bot. Lab. 54: 176. 1983. (Hattori 1983)
Frullania stylifera (R.M. Schust.) R.M. Schust., Hepat. Anthocerotae N. Amer. 5: 210. 1992. (Schuster 1992)

Basionym: Frullania inflata var. stylifera R.M. Schust., Phytologia 53(5): 366. 1983. (Schuster 1983)
Frullania subarctica Vilnet, Borovich. & Bakalin, Phytotaxa 173(1): 67. 2014. (Vilnet et al. 2014)
Frullania subcaduca S. Hatt., J. Hattori Bot. Lab. 38: 267. 1974. (Hattori 1974d)
Frullania subclavata Steph., Sp. Hepat. (Stephani) 4: 354. 1910. (Stephani 1912)
Frullania subdentata Steph., Sp. Hepat. (Stephani) 4: 545. 1911. (Stephani 1912)
- =Frullania subdentata f. longistipula S. Hatt., J. Hattori Bot. Lab. 44: 532. 1978. (Hattori 1978; Hattori & Piippo 1986)
Frullania subdentata var. latistipula (S. Hatt.) S. Hatt., J. Hattori Bot. Lab. 51: 228. 1982. (Hattori 1982d; Hattori & Piippo 1986)

Basionym: Frullania curvistipula var. latistipula S. Hatt., J. Hattori Bot. Lab. 44: 530. 1978. (Hattori 1978)
Frullania subdentata Steph. var. subdentata
Frullania subdilatata C. Massal., Nuovo Giorn. Bot. Ital., n.s. 13: 349. 1906. (Levier 1906)

≡Frullania dilatata subsp. subdilatata (C. Massal.) S. Hatt., J. Hattori Bot. Lab. 38: 219. 1974. (Hattori 1974c)
Frullania subincumbens S. Hatt., Bryologist 90: 367. 1987[1988]. (Hattori 1987b)
Frullania sublignosa Steph., Hedwigia 33(3): 148. 1894. (Stephani 1894)
- =Frullania borneensis Steph., Sp. Hepat. (Stephani) 4: 349. 1910. (Menzel 1988)
Frullania submultilacera S. Hatt. & N. Koike, J. Hattori Bot. Lab. 75: 190. 1994. (Koike 1994)
Frullania subnigricaulis S. Hatt., J. Hattori Bot. Lab. 37: 89. 1973. (Hattori 1973c)
Frullania subnigricaulis S. Hatt. var. subnigricaulis
Frullania subnigricaulis var. subtruncata S. Hatt., J. Hattori Bot. Lab. 39: 308. 1975. (Hattori 1975f; Akiyama 2009)

≡Frullania subnigricaulis subsp. subtruncata (S. Hatt.) Grolle & Piippo, Acta Bot. Fenn. 125: 24. 1984.
Frullania subocellata S. Hatt., J. Hattori Bot. Lab. 60: 248. 1986. (Hattori 1986c)
Frullania subpedicellata S. Hatt., J. Hattori Bot. Lab. 47: 93. 1980. (Hattori 1980d)
Frullania subpilibracteola S. Hatt., J. Hattori Bot. Lab. 43: 434. 1977. (Hattori 1977a)
Frullania subpyricalycina Herzog, Rev. Bryol. Lichénol. 23(1–2): 57. 1954. (Herzog 1954)
Frullania subsquarrosa S. Hatt., J. Hattori Bot. Lab. 36: 429. 1972[1973]. (Hattori 1972c)
Frullania subtilissima (Nees ex Mont.) Lindenb., Syn. Hepat. (fasc. 3): 443. 1845. (Gottsche et al. 1844)

Basionym: Frullania atrata var. subtilissima Nees ex Mont., Ann. Sci. Nat., Bot., sér. 2, 14: 333. 1840. (Montagne 1840)
- =Frullania exilis Taylor, London J. Bot. 5: 405. 1846. (Taylor 1846; Gradstein 2021)
- =Frullania crenulifolia J.B. Jack & Steph., Hedwigia 31(1): 14. 1892. (Gradstein 2021)
- =Frullania confertiramea Steph., Sp. Hepat. (Stephani) 4: 511. 1911. (Yuzawa & Koike 1989)
- =Frullania cruegeri Steph., Sp. Hepat. (Stephani) 4: 516. 1911. (Yuzawa & Koike 1989)
- =Frullania pulcherrima Steph., Sp. Hepat. (Stephani) 4: 518. 1911. (Yuzawa & Koike 1989)
- =Frullania paraensis Steph., Sp. Hepat. (Stephani) 4: 630. 1911. (Yuzawa 1988)
- =Frullania taxodiocola R.M. Schust., Phytologia 53(5): 364. 1983. (Schuster 1983; Gradstein 2021)
Frullania subtropica Steph., Sp. Hepat. (Stephani) 4: 416. 1910. (Stephani 1912)
Frullania subtruncata Steph., Sp. Hepat. (Stephani) 4: 389. 1910. (Stephani 1912)
Frullania subvalida S. Hatt. & Thaithong, J. Jap. Bot. 53: 173. 1978. (Hattori & Thaithong 1978b)
Frullania supradecomposita (Lehm. & Lindenb.) Lehm. & Lindenb., Syn. Hepat. (fasc. 3): 431. 1845. (Gottsche et al. 1844; Stotler 1969)

Basionym: Jungermannia supradecomposita Lehm. & Lindenb., Nov. Stirp. Pug. 5: 23. 1833. (Lehmann 1833)
Frullania svihlana S. Hatt., J. Hattori Bot. Lab. 54: 180. 1983. (Hattori 1983)
Frullania tagawana (S. Hatt. & Thaithong) S. Hatt., J. Hattori Bot. Lab. 59: 160. 1985. (Hattori & Lin 1985b)

Basionym: Frullania evoluta var. tagawana S. Hatt. & Thaithong, J. Hattori Bot. Lab. 43: 441. 1977. (Hattori et al. 1977)
Frullania taiheizana Horik., J. Sci. Hiroshima Univ., Ser. B, Div. 2, Bot. 2: 241. 1934. (Horikawa 1934)
Frullania takayuensis Steph., Sp. Hepat. (Stephani) 4: 399. 1910. (Stephani 1912; Mamontov et al. 2020b)

≡Frullania oakesiana subsp. takayuensis (Steph.) R.M. Schust., Hepat. Anthocerotae N. Amer. 5: 195. 1992. (Schuster 1992; Mamontov et al. 2020b)
Frullania tamarisci (L.) Dumort., Recueil Observ. Jungerm.: 13. 1835. (Dumortier 1835)

Basionym: Jungermannia tamarisci L., Sp. Pl. 2: 1134. 1753. (Linnaeus 1753; Damsholt 2002)

≡Salviatus tamarisci (L.) Gray, Nat. Arr. Brit. Pl. 1: 687. 1821. ≡Lejeunea tamarisci (L.) Corda, Beitr. Naturgesch. (Opiz) 12: 652. 1829. ≡Jubula tamarisci (L.) Dumort., Syll. Jungerm. Europ.: 37. 1831.
- =Jungermannia tamariscifolia L., Fl. Suec., ed. 2 (Linnaeus): 402. 1755, nom. illeg. (Linnaeus 1755; Ros et al. 2007)
- =Jungermannia rubiginosa Neck., Hist. & Commentat. Acad. Elect. Sci. Theod.-Palat. 2: 447. 1770. (Huebener 1834)
- =Jungermannia nigricans Lam., Fl. Franç. 1: 68. 1778[1779], nom. illeg. (Ros et al. 2007)
- =Jungermannia dilatata F. Weber, Bot. Taschenb. (Weber): 402. 1807, nom. illeg.
- =Frullania minor Raddi, Jungermanniogr. Etrusca: 10. 1818, nom. illeg. (Stotler & Crandall-Stotler 2017)
- =Frullania major Raddi, Jungermanniogr. Etrusca: 9. 1818, nom. illeg. (Ros et al. 2007)
- =Frullania hispanica Nees, Naturgesch. Eur. Leberm. 3: 236. 1838. (Ros et al. 2007) ≡Frullania tamarisci var. hispanica (Nees) Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 3): 439. 1845.
- =Jungermannia tamarisci var. sardoa De Not., Mem. Reale Accad. Sci. Torino, ser. 2, 1: 292. 1839. ≡Frullania tamarisci var. sardoa (De Not.) De Not., Mem. Reale Accad. Sci. Torino, ser. 2, 22: 380. 1865. (Hodgetts et al. 2020)
- =Jungermannia tamarisci var. mediterranea De Not., Mem. Reale Accad. Sci. Torino, ser. 2, 1: 293. 1839. ≡Frullania tamarisci var. mediterranea (De Not.) Gottsche, Lindenb. & Nees, Syn. Hepat.: 438. 1845. (Ros et al. 2007)
- =Frullania nervosa Mont., Hist. Nat. Îles Canaries 3(2): 55. 1840. (Ros et al. 2007)
- =Frullania tamarisci var. commutata Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 3): 439. 1845. (Gottsche et al. 1844)
- =Frullania tamarisci var. laxa Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 3): 439. 1845. (Gottsche et al. 1844)
- =Jungermannia tamarisci var. concaviuscula Grognot, Pl. Crypt. Saône-et-Loire: 39. 1863. (Roumeguère 1888) ≡Frullania tamarisci f. concaviuscula (Grognot) Roum., Mém. Soc. Arts Sci. Carcassonne 5: 181. 1888.
- =Frullania tamarisci var. atrovirens Carrington, Trans. Bot. Soc. Edinburgh 7(3): 457. 1863. (Hodgetts et al. 2020)
- =Frullania tamarisci var. blanda De Not., Mem. Reale Accad. Sci. Torino, ser. 2, 22: 378. 1865. (Schuster 1992) ≡Frullania dilatata var. blanda (De Not.) Bornm., Magyar Bot. Lapok 30: 21. 1931.
- =Frullania tamarisci var. chlorella De Not., Mem. Reale Accad. Sci. Torino, ser. 2, 22: 382. 1865. (Schuster 1992)
- =Frullania tamarisci var. robusta Lindb., Hepat. Hibern.: 475. 1875. (Hodgetts et al. 2020)
- =Frullania tamarisci var. cornubica Carrington ex Gottsche & Rabenh., Hepat. Eur. 62–64: no. 637. 1877. (Gottsche & Rabenhorst 1877; Hodgetts et al. 2020)
- =Frullania tamarisci var. heterophylla Corb., Mém. Soc. Sci. Nat. Math. Cherbourg 26: 345. 1889. (Ros et al. 2007)
- =Frullania tamarisci var. explanata Kaal., Nyt Mag. Naturvidensk. 33(1): 97. 1893[1892]. (Schuster 1992)
- =Frullania tamarisci f. virescens Hérib., Mém. Acad. Sci. Clermont-Ferrand, sér. 2, 14: 502. 1899. (Héribaud 1899)
- =Frullania maritima Steph., Sp. Hepat. (Stephani) 4: 568. 1911. (Schumacker & Váňa 2005)
- =Frullania willkommii Steph., Sp. Hepat. (Stephani) 4: 570. 1911. (Ros et al. 2007)
- =Frullania tamarisci f. gracilis Casares-Gil, Fl. Ibér. Brióf., Hepát.: 698. 1919. (Casares-Gil 1919)
- =Frullania tamarisci f. robusta Casares-Gil, Fl. Ibér. Brióf., Hepát.: 698. 1919, nom. illeg. (Casares-Gil 1919)
- =Frullania moniliata var. elongatistipula Verd., Symb. Sin. 5: 42. 1930. ≡Frullania elongatistipula (Verd.) S. Hatt., J. Hattori Bot. Lab. 35: 241. 1972. (Hattori & Lin 1985b) ≡Frullania tamarisci var. elongatistipula (Verd.) S. Hatt., J. Hattori Bot. Lab. 59: 162. 1985. (Hattori & Lin 1985b)
- =Frullania tamarisci var. schiffneri W.E. Nicholson, J. Bot. 71: 347. 1933. (Ros et al. 2007)
- =Frullania tamarisci var. ericetorum Jørg., Bergens Mus. Skr. 16: 328. 1934. (Hodgetts et al. 2020)
Frullania tamarisci f. minshanensis (S. Hatt.) S. Hatt., J. Hattori Bot. Lab. 59: 161. 1985. (Hattori & Lin 1985b; Gao et al. 2010)

Basionym: Frullania tamarisci var. minshanensis S. Hatt., J. Hattori Bot. Lab. 44: 539. 1978. (Hattori 1978)
Frullania tamarisci (L.) Dumort. f. tamarisci
Frullania tamsuina Steph., Sp. Hepat. (Stephani) 4: 444. 1910. (Stephani 1912)
Frullania taradakensis Steph., Sp. Hepat. (Stephani) 4: 352. 1910. (Stephani 1912)
Frullania teneriffae (F. Weber) Nees, Naturgesch. Eur. Leberm. 3: 239. 1838. (Nees von Esenbeck 1838)

Basionym: Jungermannia teneriffae F. Weber, Hist. Musc. Hepat. Prodr. (Weber): 23. 1815. (Weber 1815)
- =Jungermannia germana Taylor, Ann. Mag. Nat. Hist. 12: 173. 1843. (Taylor 1843; Ros et al. 2007) ≡Frullania germana (Taylor) Taylor ex Gottsche, Lindenb. & Nees, Syn. Hepat.: 450. 1845. (Vanden Berghen 1976) ≡Frullania tamarisci var. germana (Taylor) Carrington, Trans. Bot. Soc. Edinburgh 7: 457. 1863.
- =Frullania germana f. explanata Macvicar, Stud. Handb. Brit. Hepat.: 437. 1912. ≡Frullania germana var. explanata (Macvicar) Müll. Frib., Lebermoose 2(24): 616. 1915. ≡Frullania teneriffae f. explanata (Macvicar) Damsh., Ill. Fl. Nord. Liverw. Hornw.: 601. 2002. (Damsholt 2002)
Frullania tenuirostris Steph., Sp. Hepat. (Stephani) 4: 462. 1910. (Stephani 1912; Hattori 1984c)
Frullania ternatensis Gottsche, Syn. Hepat.: 465. 1846. (Gottsche et al. 1844)
- =Frullania pendula Mitt., J. Proc. Linn. Soc., Bot. 5: 122. 1861. (Long & Rubasinghe 2014)
- =Frullania curranii Steph., Sp. Hepat. (Stephani) 4: 553. 1911. (Verdoorn 1930a)
- =Frullania concava Horik., J. Sci. Hiroshima Univ., Ser. B, Div. 2, Bot. 2: 238. 1934. (Horikawa 1934; Hattori 1973b)
Frullania ternatensis var. nonappendiculata S. Hatt., J. Hattori Bot. Lab. 38: 174. 1974. (Hattori 1974b; Lee et al. 2022)
Frullania ternatensis Gottsche var. ternatensis
Frullania tetraptera Nees & Mont., Ann. Sci. Nat., Bot., sér. 2, 9: 47. 1838. (Montagne 1838)
- =Frullania semiconnata Lindenb. & Gottsche, Syn. Hepat.: 776. 1847. (Gradstein & Uribe-M. 2016)
- =Frullania semiconnata var. coronata Gottsche, Ann. Sci. Nat., Bot., sér. 5, 1: 169. 1864. (Gradstein & Uribe-M. 2016)
- =Frullania semiconnata var. granatensis Gottsche, Ann. Sci. Nat., Bot., sér. 5, 1: 169. 1864. (Gradstein & Uribe-M. 2016)
- =Frullania semiconnata var. suborbiculata Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 28. 1884. (Spruce 1884–1885; Winter 2020)
- =Frullania conferta Spruce, Bull. Soc. Bot. France 36(Suppl. Congrés Bot. 1889): CXC. 1889[1890]. (Spruce 1889; Söderström et al. 2013)
Frullania thiersiae S. Hatt., Beih. Nova Hedwigia 90: 156. 1988. (Hattori 1988a)
Frullania thouvenotiana Larraín, von Konrat, B.E. Carter & Aguero, Bryoph. Diversity & Evol. 40(2): 107. 2018. (Larraín et al. 2018)
Frullania tibetica Mamontov & J.J. Atwood, Novon 29: 306. 2021. (Atwood & Mamontov 2021)
Frullania tixieri S. Hatt., J. Jap. Bot. 51: 193. 1976. (Hattori 1976c)
Frullania tjibodensis S. Hatt. & Thaithong, J. Jap. Bot. 52: 289. 1977. (Hattori & Thaithong 1977)
Frullania togashiana S. Hatt., Bull. Natl. Sci. Mus. Tokyo, B 1: 118. 1975. (Hattori 1975a)
Frullania toropuku von Konrat, de Lange & Larraín, Polish Bot. J. 58(2): 439. 2013. (von Konrat et al. 2013)
Frullania trianae Gottsche, Ann. Sci. Nat., Bot., sér. 5, 1: 173. 1864. (Gottsche 1864)
Frullania tricarinata Sande Lac., Plagiochila Sandei: 10. 1856. (Dozy 1856)
Frullania trichodes Mitt., Bonplandia (Hannover) 10: 19. 1862. (Mitten 1862)
- =Frullania vethii Sande Lac., Bijdr. Fl. Midd. Sumatra 4(2): 44. 1884. (Hattori & Piippo 1986)
- =Frullania tenuicaulis Mitt., Trans. Linn. Soc. London, Bot. 3(3): 203. 1891. (Yamada & Iwatsuki 2006)
- =Frullania picta Steph., Hedwigia 33: 166. 1894. (Sukkharak 2018)
- =Frullania grebeana Steph., Sp. Hepat. (Stephani) 4: 537. 1911. (Sukkharak 2018)
- =Frullania merrilliana Steph., Sp. Hepat. (Stephani) 4: 613. 1911. (Sukkharak 2018)
- =Frullania rubromaculata K.I. Goebel, Ann. Jard. Bot. Buitenzorg 39: 53. 1928. (Sukkharak 2018)
- =Frullania vethii f. acutiloba S. Hatt., J. Hattori Bot. Lab. 40: 503. 1976. (Hattori 1976d; Menzel 1988)
Frullania trigona L. Clark, Jovet-Ast & Frye, Bryologist 50(1): 52. 1947. (Clark et al. 1947)
Frullania trinervis (Lehm.) Drège, Flora 26(Beig.): 186. 1843. (Drège 1843)

Basionym: Jungermannia trinervis Lehm., Linnaea 9: 426. 1835. (Lehmann 1835)
- =Jungermannia obscura Lehm. & Lindenb., Linnaea 4: 358. 1829, nom. illeg. (Wigginton 2018) ≡Frullania trinervis var. obscura Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 3): 428. 1845. (Gottsche et al. 1844)
- =Jungermannia elongata Lehm., Linnaea 9: 426. 1835. (Wigginton 2018) ≡Frullania trinervis var. elongata (Lehm.) Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 3): 428. 1845. (Gottsche et al. 1844)
- =Frullania trinervis var. berteroana Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 3): 428. 1845. (Gottsche et al. 1844; Yuzawa 1991)
- =Frullania trinervis var. sprengelii Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 3): 428. 1845. (Gottsche et al. 1844; Yuzawa 1991)
- =Frullania parisii Steph., Rev. Bryol. 35: 6. 1908. (Wigginton 2018)
- =Frullania angustifolia Steph., Sp. Hepat. (Stephani) 4: 323. 1910. (Wigginton 2018)
- =Frullania hildebrandtii Steph., Sp. Hepat. (Stephani) 4: 324. 1910. (Wigginton 2018)
- =Frullania abyssinica Steph., Sp. Hepat. (Stephani) 4: 366. 1910. (Yuzawa 1991)
- =Frullania levicalyx Steph., Sp. Hepat. (Stephani) 4: 372. 1910. (Wigginton 2018)
- =Frullania obconica Steph., Sp. Hepat. (Stephani) 4: 380. 1910. (Wigginton 2018)
- =Frullania ubangiensis Steph., Sp. Hepat. (Stephani) 4: 674. 1911. (Wigginton 2018)
- =Frullania crenuliflora Pearson, Ark. Bot. 19(5): 8. 1924. (Wigginton 2018)
- =Frullania stylata Gerola, Lav. Bot. Ist. Bot. Univ. Padova 12: 475. 1947. (Wigginton 2018)
Frullania triquetra Lindenb. & Gottsche, Syn. Hepat.: 780. 1847. (Gottsche et al. 1844; Stotler 1969)
- =Frullania rigescens var. mollicula Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 52. 1884. ≡Frullania mollicula (Spruce) Spruce, Mem. Torrey Bot. Club 1(3): 119. 1890. (Gradstein et al. 2003)
- =Frullania paucipinna Steph., Sp. Hepat. (Stephani) 4: 502. 1911. (Gradstein et al. 2003)
†Frullania truncata Casp., Schriften Königl. Phys.-Ökon. Ges. Königsberg 27: 4. 1887. (Caspary 1887)
- =†Madotheca linguifera Casp., Schriften Königl. Phys.-Ökon. Ges. Königsberg 27: 3. 1887. (Caspary 1887; Feldberg et al. 2018)
Frullania truncatistyla von Konrat, Hentschel, Heinrichs & Braggins, Bryologist 114(1): 63. 2011. (von Konrat et al. 2011)
Frullania tubercularis S. Hatt. & P.J. Lin, J. Jap. Bot. 60: 107. 1985. (Hattori & Lin 1985a)
Frullania tunguraguana L. Clark & Frye, Bryologist 55(2): 133. 1952. (Clark 1952)

Replaced synonym: Frullania brachyclada Spruce, Trans. & Proc. Bot. Soc. Edinburgh 15: 15. 1884, nom. illeg. (Spruce 1884–1885; Hässel de Menéndez & Rubies 2009)
Frullania turfosa Lindenb. & Gottsche, Syn. Hepat.: 779. 1847. (Gottsche et al. 1844)
Frullania tuyamae S. Hatt. & Thaithong, J. Jap. Bot. 53: 175. 1978. (Hattori & Thaithong 1978b)
Frullania udarii Vir. Nath & Ajit P. Singh, Curr. Sci. 91: 744. 2006. (Nath & Singh 2006)
Frullania uleana Steph., Hedwigia 33(3): 155. 1894. (Stephani 1894; Uribe-M. & Gradstein 2003)
- =Frullania involuta Hampe ex Steph., Sp. Hepat. (Stephani) 4: 595. 1911. (Uribe-M. & Gradstein 2003)
Frullania umbonata Mitt., Sp. Hepat. (Stephani) 4: 579. 1911. (Stephani 1912)
Frullania usambarana Schiffn. ex Steph., Hedwigia 33: 160. 1894. (Stephani 1894)
Frullania usambarana var. reducta Vanden Berghen, Bull. Jard. Bot. Natl. Belg. 46: 91. 1976. (Vanden Berghen 1976; Wigginton 2018)
Frullania usambarana Schiffn. ex Steph. var. usambarana
Frullania usamiensis Steph., Bull. Herb. Boissier 5: 91. 1897. (Stephani 1897b)
- =Frullania yakushimensis Horik., J. Sci. Hiroshima Univ., Ser. B, Div. 2, Bot. 2: 237. 1934. (Horikawa 1934; Yamada & Iwatsuki 2006) ≡Frullania usamiensis f. yakushimensis (Horik.) S. Hatt., J. Hattori Bot. Lab. 5: 67. 1951.
Frullania utriculata Steph., Hedwigia 33(3): 152. 1894. (Stephani 1894)
- =Frullania powelliana Steph., Hedwigia 33(3): 151. 1894. (Hattori & Piippo 1986) ≡Frullania utriculata var. powelliana (Steph.) Verd., Ann. Bryol., Suppl. 1: 169. 1930.
- =Frullania ponapena Steph., Sp. Hepat. (Stephani) 6: 553. 1924. (Hattori & Piippo 1986)
- =Frullania fallax var. magnistipula S. Hatt., J. Hattori Bot. Lab. 39: 286. 1975. (Hattori 1975f; Hattori & Piippo 1986)
Frullania vaga Mitt., Fl. Vit.: 418. 1871[1873]. (Mitten 1873)
Frullania vaginata (Sw.) Nees, Syn. Hepat.: 465. 1846. (Gottsche et al. 1844)

Basionym: Jungermannia vaginata Sw., Meth. Musc.: 35. 1781. (Swartz 1781)
Frullania vaginata var. nigricans Gottsche, Lindenb. & Nees, Syn. Hepat. (fasc. 4): 465. 1846. (Gottsche et al. 1844; Söderström et al. 2016)
Frullania vaginata (Sw.) Nees var. vaginata
Frullania valdiviensis J.B. Jack & Steph., Hedwigia 33(3): 149. 1894. (Stephani 1894)
Frullania valida Steph., Sp. Hepat. (Stephani) 4: 402. 1910. (Stephani 1912)
Frullania valparaisiana Lehm., Nov. Stirp. Pug. 10: 17. 1857. (Lehmann 1857)
Frullania van-zantenii Kamim. & S. Hatt., J. Hattori Bot. Lab. 37: 528. 1973. (Hattori & Kamimura 1973)

≡Frullania serrata subsp. van-zantenii (Kamim. & S. Hatt.) S. Hatt., J. Hattori Bot. Lab. 47: 114. 1980. (Hattori 1980d)
†Frullania vanae Mamontov, J.J. Atwood, Perkovsky & Ignatov, Bryologist 123(3): 424. 2020. (Mamontov et al. 2020a)
Frullania vandenberghenii Pócs, Acta Bot. Acad. Sci. Hung. 25: 229. 1979. (Bizot & Pócs 1979)

Replaced synonym: Frullania epiphylla Vanden Berghen, Bull. Jard. Bot. Natl. Belg. 46: 30. 1976, nom. illeg. (Vanden Berghen 1976)
†Frullania varians Casp., Schriften Königl. Phys.-Ökon. Ges. Königsberg 27: 5. 1887. (Caspary 1887)
- =†Frullania primigenia Casp., Schriften Königl. Phys.-Ökon. Ges. Königsberg 27: 4. 1887. (Caspary 1887; Grolle & Meister 2004)
Frullania variegata Steph., Hedwigia 33: 149. 1894. (Stephani 1894)
- =Frullania renauldii Steph., Sp. Hepat. (Stephani) 4: 487. 1911. (Wigginton 2018)
- =Frullania garsidei S.W. Arnell, Svensk Bot. Tidskr. 47(1): 116. 1953. (Arnell 1953; Wigginton 2018)
Frullania venusta S. Hatt., J. Hattori Bot. Lab. 38: 217. 1974. (Hattori 1974c)
Frullania verdoorniana S. Hatt., J. Hattori Bot. Lab. 37: 122. 1973. (Hattori 1973a)
Frullania victoriensis Steph., Sp. Hepat. (Stephani) 4: 418. 1910. (Stephani 1912)
Frullania virginica Lehm., Nov. Stirp. Pug. 8: 19. 1844. (Lehmann 1844; Söderström et al. 2016)

≡Frullania eboracensis subsp. virginica (Lehm.) R.M. Schust., Hepat. Anthocerotae N. Amer. 5: 147. 1992. (Schuster 1992)
- =Frullania sullivantii Austin, Proc. Acad. Nat. Sci. Philadelphia 21(4): 226. 1869. (Austin 1869; Schuster 1992)
Frullania vitalii Yuzawa & S. Hatt., J. Jap. Bot. 63: 30. 1988. (Yuzawa & Hattori 1988a)
Frullania vittata S. Hatt., J. Hattori Bot. Lab. 38: 270. 1974. (Hattori 1974d)
- =Frullania vittata f. denticulata S. Hatt., J. Hattori Bot. Lab. 47: 85. 1980. (Hattori 1980d; Hattori & Piippo 1986)
Frullania vittiana S. Hatt., Bryologist 90: 368. 1987[1988]. (Hattori 1987b)
Frullania vivipara Pócs, Fieldiana, Bot., n.s. 47: 151. 2008. (Pócs 2008)
Frullania wagneri Steph., Sp. Hepat. (Stephani) 4: 392. 1910. (Stephani 1912)
Frullania wairua von Konrat & Braggins, New Zealand J. Bot. 43: 886. 2006. (von Konrat & Braggins 2006)
Frullania wangii S. Hatt. & P.J. Lin, J. Hattori Bot. Lab. 59: 146. 1985. (Hattori & Lin 1985b)
Frullania warnckeana S. Hatt., J. Hattori Bot. Lab. 38: 213. 1974. (Hattori 1974c)
Frullania warnckeana var. dentosa S. Hatt., Misc. Bryol. Lichenol. 7(8): 162. 1977. (Hattori 1977b; Söderström et al. 2016)
Frullania warnckeana S. Hatt. var. warnckeana
Frullania weberbaueri Steph., Sp. Hepat. (Stephani) 4: 510. 1911. (Stephani 1912)
Frullania winteri Steph., Sp. Hepat. (Stephani) 4: 338. 1910. (Stephani 1912)
Frullania winteri var. vanderhammenii (Haarbrink) Yuzawa, J. Hattori Bot. Lab. 70: 233. 1991. (Yuzawa 1991; Uribe-M. & Gradstein 1998)

Basionym: Frullania vanderhammenii Haarbrink, Lindbergia 7: 56. 1981. (Haarbrink 1981)
Frullania winteri Steph. var. winteri
Frullania wrightii Austin, Bull. Torrey Bot. Club 3(3): 15. 1872. (Austin 1872; Mamontov et al. 2020b)
Frullania yuennanensis Steph., Hedwigia 33: 161. 1894. (Stephani 1894)
- =Frullania horikawana Verd., Symb. Sin. 5: 36. 1930. (Sukkharak 2018)
- =Frullania yuennanensis f. refleximarginata Verd., Symb. Sin. 5: 42. 1930. (Piippo 1990)
Frullania yuennanensis var. siamensis (N. Kitag., Thaithong & S. Hatt.) S. Hatt. & P.J. Lin, J. Hattori Bot. Lab. 59: 148. 1985. (Hattori & Lin 1985b; Sukkharak 2018)

Basionym: Frullania siamensis N. Kitag., Thaithong & S. Hatt., J. Hattori Bot. Lab. 43: 452. 1977. (Hattori et al. 1977; Sukkharak 2018)
Frullania yuennanensis Steph. var. yuennanensis
Frullania yuzawana S. Hatt., J. Hattori Bot. Lab. 49: 157. 1981. (Hattori 1981a; Piippo 1990)
Frullania zangii S. Hatt. & P.J. Lin, J. Hattori Bot. Lab. 59: 149. 1985. (Hattori & Lin 1985b)
Frullania zennoskeana S. Hatt., J. Jap. Bot. 59: 308. 1984. (Hattori 1984b)
†Frullania zerovii Mamontov, Ignatov & Perkovsky, Nova Hedwigia 106(1–2): 104. 2018[2017]. (Mamontov et al. 2018)
Frullania zhenjingensis (C. Gao & K.C. Chang) Y. Jia & S. He, Spp. Cat. China 1: 381. 2013. (Jia & He 2013)

Basionym: Neohattoria zhenjingensis C. Gao & K.C. Chang, Bull. Bot. Res., Harbin 4(3): 90. 1974. (Chang & Gao 1984; Gao et al. 2010)

A Synopsis of Frullania

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