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044.0000 Family Thelypteridaceae Ching ex Pic.Serm.; Webbia 24: 711 (1970)
5-34 genera (depending on genus concept), 1100-1200 spp. New genus concept adopted here from Fawcett & Smith (2021), based on molecular results.
Species listed in database: 1182; hybrids: 37
044.2018 Genus Pelazoneuron (Holttum) A.R.Sm. & S.E.Fawc.; Sida, Bot. Misc. 59: 63 (2021)
Distribution: trop. America north to S-USA
Species listed in database: 18; hybrids: 1

Search for: Pelazoneuron ovatum-var.-lindheimeri

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species :
Pelazoneuron abruptum (C.Presl) A.R.Sm. & S.E.Fawc.; Sida, Bot. Misc. 59: 63 (2021)
Name: Stately Maiden Fern
Distribution: USA (S-Florida: Collier Co.); Mexico (Guerrero, Jalisco, Oaxaca); Cuba; Jamaica; Hispaniola (Dominican Republic); Puerto Rico; Virgin Isl. (St. Thomas); St. Kitts; Venezuela (Lara); Bolivia (Beni, Cochabamba, La Paz, Santa Cruz, Tarija); Brazil (Goiás, Minas Gerais, Mato Grosso do Sul, Mato Grosso, São Paulo); Argentina (Jujuy, Salta)
78 USA 79 MEX 81 CUB HIS JAM PUE STK VIR 82 VEN 83 BOL 84 BRA 85 ARG
Synonyms: hidden
= Aspidium abruptum Kunze; Linnaea 9: 93 (1834) (non Blume (1828))
= Christella abrupta (C.Presl) A.R.Sm.; Phytotaxa 394(2): 174 (2019)
= Christella grandis var. kunzeana (Hook.) A.R.Sm.; Phytotaxa 331(1): 20 (2017)
= Dryopteris abrupta (Kunze) Kuntze; Revis. Gen. Pl. 2: 812 (1891)
= Dryopteris chartacea C.Chr.; Index Filic. 257 (1905)
= Dryopteris kunzeana (Hook.) C.Chr.; Index Filic. 273 (1905)
= Dryopteris oligophylla var. kunzeana (Hook.) C.Chr.; Kongel. Danske Vidensk. Selsk. Skr., Naturvidensk. Math. Afd., Ser. 7, 10(2): 189 (1913)
= Lastrea abrupta C.Presl; Tent. Pterid. 75 (1836), nom. nov. for Aspidium abruptum Kunze
= Lastrea kunzeana (Hook.) Copel.; Ann. Cryptog. Phytopathol. 5 [Gen. Fil.]: 139 (1947), nom. superfl.
= Nephrodium abruptum (C.Presl) Baker; Syn. Fil. [W.J.Hooker & Baker] 263 (1868), isonym
= Nephrodium abruptum (C.Presl) Bedd.; Ferns S. India, t. 86 (1863)
= Nephrodium kunzeanum Hook.; Sp. Fil. [W.J.Hooker] 4: 102 (1862), nom. illeg. superfl.
= Thelypteris grandis var. kunzeana (Hook.) A.R.Sm.; Univ. Calif. Publ. Bot. 59: 99 (1971)
= Thelypteris invisa var. kunzeana (Hook.) C.V.Morton; Contr. U.S. Natl. Herb. 38: 62 (1967)
= Thelypteris kunzeana (Hook.) Ching; Bull. Fan Mem. Inst. Biol., Bot. 10: 252 (1941)
variant :
var. grande (A.R.Sm.) A.R.Sm. & S.E.Fawc.; Sida, Bot. Misc. 59: 63 (2021)
Distribution: Brazil (Goiás, Minas Gerais, Mato Grosso do Sul, Mato Grosso, São Paulo)
84 BRA
Synonyms: hidden
= Christella grandis (A.R.Sm.) A.R.Sm.; Phytotaxa 331(1): 20 (2017) comb. inval. (basionym not cited)
= Nephrodium paucijugum Jenman; J. Bot. 24: 270 (1886) (non Thelypteris paucijuga (Klotzsch) A. R. Sm.)
= Thelypteris grandis A.R.Sm.; Univ. Calif. Publ. Bot. 59: 96 (1971), nom. nov. for Nephrodium paucijugum Jenman
variant :
var. pallescens (C.Chr.) A.R.Sm. & S.E.Fawc.; Sida, Bot. Misc. 59: 63 (2021)
Distribution: Honduras; Nicaragua; Costa Rica; Panama; Jamaica; Hispaniola (Haiti, Dominican Republic); Colombia (Cundinamarca, Magdalena, Valle); Venezuela (Aragua, Lara, Merida, Miranda, Trujillo); Ecuador; Peru; Brazil (Minas Gerais, São Paulo, Rio Grande do Sul)
80 COS HON NIC PAN 81 HIS JAM 82 CLM VEN 83 ECU PER 84 BRA
Synonyms: hidden
= Christella oligophylla var. lutescens (C.Chr.) Brade; Bradea 1(22): 206 (1972)
= Cyclosorus oligophyllus var. lutescens (C.Chr.) Brade; Bradea 1: 206 (1972)
= Dryopteris oligophylla var. lutescens C.Chr.; Kongel. Danske Vidensk. Selsk. Skr., Naturvidensk. Math. Afd., Ser. 7, 10(2): 188 (1912)
= Dryopteris oligophylla var. pallescens C.Chr.; Kongel. Danske Vidensk. Selsk. Skr., Naturvidensk. Math. Afd., Ser. 7, 10: 188 (1913)
= Dryopteris oligophylloides Sehnem; Fl. Ilustr. Catarin. (Aspidiaceas) 124 (1979), nom. nov.
= Thelypteris grandis var. pallescens (C.Chr.) A.R.Sm.; Univ. Calif. Publ. Bot. 59: 99 (1971)
= Thelypteris invisa var. pallescens (C.Chr.) C.V.Morton; Contr. U.S. Natl. Herb. 38: 62 (1967)
species :
Pelazoneuron acunae (C.Sánchez & Zavaro) C.Sánchez; Cat. Plantas de Cuba 1259 (2024)
Distribution: Cuba
81 CUB
Synonyms: hidden
= Amauropelta acunae (C.Sánchez & Zavaro) Salino & T.E.Almeida; PhytoKeys 57: 16 (2015)
= Thelypteris acunae C.Sánchez & Zavaro; Fontqueria 31: 223 (1991)
species :
Pelazoneuron albicaule (Fee) A.R.Sm. & S.E.Fawc.; Sida, Bot. Misc. 59: 63 (2021)
Distribution: Mexico (Chiapas, Colima, Guerrero, Jalisco, Mexico State, Michoacan, Morelos, Oaxaca, Puebla, Veracruz)
79 MEX
Conservation Status: IUCN R
Synonyms: hidden
= Aspidium albicaule Fée; Mém. Foug. 8 (Icon. Esp. Nouv.): 102 (1857)
= Aspidium geropogon Fée; Mém. Foug. 10 (Icon. Esp. Nouv.): app (1865)
= Cyclosorus albicaulis (Fée) Mazumdar & R.Mukhop.; Bionature 33(1): 14 (2013)
= Dryopteris augescens var. geropogon (Fée) C.Chr.; Kongel. Danske Vidensk. Selsk. Skr., Naturvidensk. Math. Afd., Ser. 7, 10(2): 185 (1913)
= Dryopteris geropogon (Fée) C.Chr.; Index Filic. 267 (1905)
= Nephrodium geropogon (Fée) Kiaersk.; Cat. Fil. Herb. Hort. Haun. 63 (1874)
= Thelypteris albicaulis (Fée) A.R.Sm.; Univ. Calif. Publ. Bot. 59: 94 (1971)
species :
Pelazoneuron augescens (Link) A.R.Sm. & S.E.Fawc.; Sida, Bot. Misc. 59: 64 (2021)
Name: Abrupt-tip Maiden Fern
Distribution: S-India [I]; USA (S-Florida: Dade Co.); Mexico (Quintana Roo, Coahuila); Guatemala; Costa Rica; Bahamas; Cuba; Cayman Isl. (Grand Cayman)
40 ind 78 USA 79 MEX 80 COS GUA 81 BAH CAY CUB
Synonyms: hidden
= Aspidium augescens Link; Fil. Spec. 103 (1841)
= Christella augescens (Link) Pic.Serm.; Webbia 31(1): 352 (1977)
= Cyclosorus augescens (Link) Mazumdar & R.Mukhop.; J. Bot. Soc. Bengal 67(1): 44 (2013)
= Dryopteris augescens (Link) C.Chr.; Kongel. Danske Vidensk. Selsk. Skr., Naturvidensk. Math. Afd., Ser. 7, 10: 182 (1913)
= Dryopteris serra var. augescens (Link) Bonap.; Notes Ptéridol. 2: 132 (1915)
= Filix-mas augescens (Link) Farw.; Amer. Midl. Naturalist 12: 234-251 (1931)
= Lastrea augescens (Link) Houlston; Gard. Mag. Bot. 3: 316 (1851), et J. Sm. Cat. Ferns Kew 6 (1856)
= Nephrodium augescens (Link) J.Sm.; Bot. Mag. 72 (Compan.): 32 (1846)
= Nephrodium serra var. augescens (Link) Jenman; Bull. Bot. Dept., Jamaica 3: 164 (1896)
= Thelypteris augescens (Link) Munz & I.M.Johnst.; Amer. Fern J. 12: 75 (1922)
species :
Pelazoneuron berroi (C.Chr.) A.R.Sm. & S.E.Fawc.; Sida, Bot. Misc. 59: 64 (2021)
Distribution: Brazil (Bahia, Brasilia Distrito Federal, Goiás, Minas Gerais, Mato Grosso do Sul, Mato Grosso, Santa Catarina, São Paulo); Paraguay (Amambay, Concepcion, Paraguari); Uruguay (Rivera, Rio Negro, Salto); Argentina (Corrientes, Entre Rios, Misiones)
84 BRA 85 ARG PAR URU
Synonyms: hidden
= Christella berroi (C.Chr.) Salino & A.R.Sm.; Phytotaxa 340(2): 178 (2018)
= Cyclosorus berroi (C.Chr.) Abbiatti; Darwiniana 13: 567 (1964)
= Dryopteris berroi C.Chr.; Kongel. Danske Vidensk. Selsk. Skr., Naturvidensk. Math. Afd., Ser. 7, 10: 185, f. 24 (1913)
= Thelypteris berroi (C.Chr.) C.F.Reed; Phytologia 17: 263 (1968)
= Thelypteris browniana Ponce; Darwiniana 28(1-4): 365 (1987 publ. 1988) (tentative synonym)
species :
Pelazoneuron blepharis (A.R.Sm.) A.R.Sm. & S.E.Fawc.; Sida, Bot. Misc. 59: 64 (2021)
Distribution: Mexico (Chiapas); Guatemala
79 MEX 80 GUA
Synonyms: hidden
= Cyclosorus blepharis (A.R.Sm.) Mazumdar & R.Mukhop.; Bionature 33(1): 14 (2013)
= Thelypteris blepharis A.R.Sm.; Proc. Calif. Acad. Sci. Ser. 4, 40: 227 (1975)
species :
Pelazoneuron clivale (A.R.Sm.) A.R.Sm. & S.E.Fawc.; Sida, Bot. Misc. 59: 64 (2021)
Distribution: Colombia (Putumayo); Venezuela (Aragua, Merida); Ecuador; Galapagos; Peru; Bolivia (La Paz)
82 CLM VEN 83 BOL ECU GAL PER
Synonyms: hidden
= Christella clivalis (A.R.Sm.) A.R.Sm.; Phytotaxa 331(1): 20 (2017)
= Dryopteris oligophylla var. aequatorialis C.Chr.; Kongel. Danske Vidensk. Selsk. Skr. Naturvidensk. Math. Afd., Ser. 7, 10: 189 (1913)
= Thelypteris clivalis A.R.Sm.; Fieldiana, Bot. 29: 45 (1992), nom. nov.
= Thelypteris grandis var. aequatorialis (C.Chr.) A.R.Sm.; Univ. Calif. Publ. Bot. 59: 98 (1971)
= Thelypteris invisa var. aequatorialis (C.Chr.) C.V.Morton; Contr. U.S. Natl. Herb. 38: 61 (1967)
species :
Pelazoneuron cretaceum (A.R.Sm.) A.R.Sm. & S.E.Fawc.; Sida, Bot. Misc. 59: 64 (2021)
Distribution: Mexico (Veracruz, Oaxaca, Chiapas); Guatemala; El Salvador; Honduras; Nicaragua; Costa Rica
79 MEX 80 COS ELS GUA HON NIC
Synonyms: hidden
= Christella cretacea (A.R.Sm.) Á.Löve & D.Löve; Taxon 26(2-3): 326 (1977)
= Cyclosorus cretaceus (A.R.Sm.) Mazumdar & Mukhop.; J. Bot. Soc. Bengal 67(1): 45 (2013)
= Thelypteris cretacea A.R.Sm.; Univ. Calif. Publ. Bot. 59: 92 (1971)
species :
Pelazoneuron depilatum (A.R.Sm.) A.R.Sm. & S.E.Fawc.; Sida, Bot. Misc. 59: 64 (2021)
Distribution: Peru
83 PER
Synonyms: hidden
= Cyclosorus depilatus (A.R.Sm.) Mazumdar & R.Mukhop.; Bionature 33(1): 18 (2013)
= Thelypteris depilata A.R.Sm.; Fieldiana, Bot. 29: 45 (1992)
species :
Pelazoneuron kunthii (Desv.) A.R.Sm. & S.E.Fawc.; Sida, Bot. Misc. 59: 64 (2021)
Name: Widespread Maiden Fern, Kunth´s maiden fern
Distribution: Rwanda [I]; Burundi [I]; USA (Alabama, Arkansas, Florida, Georgia, Louisiana, Mississippi, North Carolina, South Carolina, Texas); Bermuda; Mexico (Campeche, Chiapas, Guerrero, Hidalgo, Morelos, Oaxaca, Puebla, Quintana Roo, San Luis Potosi, Tamaulipas, Veracruz, Yucatan); Guatemala; Belize; El Salvador; Honduras; Nicaragua; Costa Rica; ?Panama; Bahamas; Turks & Caicos Isl.; Cuba; Cayman Isl. (Grand Cayman, Cayman Brac); Jamaica; Hispaniola (Dominican Republic, Haiti); Puerto Rico; Virgin Isl. (St. Thomas, Tortola); Nevis; Guadeloupe; ?Dominica; Martinique; Colombia (Atlántico, Boyacá, Huila, La Guajira); Venezuela (Aragua, Carabobo, Venezuela Distrito Federal, Miranda, Monagas)
23 bur rwa 77 USA 78 USA 79 MEX 80 BLZ COS ELS GUA HON NIC 81 BAH BER CAY CUB GDL HIS JAM MAR PUE STK TCI VIR 82 CLM VEN
Synonyms: hidden
= Christella burundensis Pic.Serm.; Bull. Jard. Bot. Natl. Belg. 53(1/2): 277, 279, fig. 18 (1983)
= Christella normalis (C.Chr.) Holttum; Webbia 30(1): 193 (1976)
= Cyclosorus burundensis (Pic.Serm.) Mazumdar & Mukhop.; J. Bot. Soc. Bengal 67(1): 44 (2013)
= Cyclosorus kunthii (Desv.) Christenh.; Bot. J. Linn. Soc. 161(3): 249 (2009), nom. nov.
= Dryopteris normalis C.Chr.; Ark. Bot. 9(11): 31 (1910)
= Dryopteris normalis f. austrobrasiliensis Sehnem; Fl. Ilustr. Catarin. (Aspidiaceas) 121 (1979)
= Dryopteris rafinesquiana Riddell; New Orleans Med. Surg. J. 9: 617 (1853)
= Dryopteris saxatilis (R.P.St.John) M.Broun; Index No. Amer. Ferns: 79 (1938)
= Dryopteris unca (R.P.St.John) M.Broun; Index No. Amer. Ferns: 82 (1938)
= Filix-mas augescens var. normalis (C.Chr.) Farw.; Amer. Midl. Naturalist 12: 253 (1931)
= Lastrea kunthii T.Moore; Index Fil. [T. Moore] 99 (1858)
= Lastrea normalis (C.Chr.) Copel.; Ann. Cryptog. Phytopathol. 5 [Gen. Fil.]: 139 (1947)
= Nephrodium kunthii Desv.; Mém. Soc. Linn. Paris 6(2): 258 (1827)
= Nephrodium patens Jenman; Bull. Bot. Dept., Jamaica, n. s. 3: 165 (1896), nom. illeg., non Nephrodium patens (Sw.) Desv.
= Thelypteris burundensis (Pic.Serm.) Christenh.; Global Fl. 4: 28 (2018)
= Thelypteris kunthii (Desv.) C.V.Morton; Contr. U.S. Natl. Herb. 38: 53 (1967)
= Thelypteris macrorhizoma E.P.St.John; Amer. Fern J. 32: 146 (1943)
= Thelypteris normalis (C.Chr.) Moxley; Bull. S. Calif. Acad. Sci. 19: 57 (1920)
= Thelypteris saxatilis R.P.St.John; Ferns S.E. States [Small] 236 cum tab. (1938)
= Thelypteris unca R.P.St.John; Ferns S.E. States [Small] 246 cum tab. (1938)
species :
Pelazoneuron lanosum (C.Chr.) A.R.Sm. & S.E.Fawc.; Sida, Bot. Misc. 59: 64 (2021)
Distribution: Mexico (Hidalgo, Veracruz)
79 MEX
Synonyms: hidden
= Aspidium pallidum E.Fourn.; Mexic. Pl. 1: 96 (1872) (non Blume (1828) nec Link (1841))
= Christella lanosa (C.Chr.) Á.Löve & D.Löve; Taxon 26(2-3): 326 (1977)
= Cyclosorus lanosus (C.Chr.) Mazumdar & Mukhop.; J. Bot. Soc. Bengal 67(1): 45 (2013)
= Dryopteris chlorophylla C.Chr.; Index Filic. 257 (1905)
= Dryopteris patens var. lanosa C.Chr.; Kongel. Danske Vidensk. Selsk. Skr., Naturvidensk. Math. Afd., Ser. 7, 10(2): 180 (1913)
= Nephrodium pallidum (E.Fourn.) Hemsl.; Biol. Centr.-Amer., Bot. 3: 648 (1885)
= Thelypteris lanosa (C.Chr.) A.R.Sm.; Univ. Calif. Publ. Bot. 59: 70 (1971)
species :
Pelazoneuron ovatum (R.P.St.John) A.R.Sm. & S.E.Fawc.; Sida, Bot. Misc. 59: 64 (2021)
Name: Ovate Maiden Fern
Distribution: USA (Florida, S-South Carolina, Georgia, S-Alabama); Bahamas
78 USA 81 BAH
Synonyms: hidden
= Christella ovata (R.P.St.John) Á.Löve & D.Löve; Taxon 26(2-3): 326 (1977)
= Cyclosorus ovatus (R.P.St.John) Mazumdar & R.Mukhop.; Bionature 33(1): 27 (2013)
= Dryopteris normalis var. harperi C.Chr.; Kongel. Danske Vidensk. Selsk. Skr., Naturvidensk. Math. Afd., Ser. 7, 10(2): 182 (1913)
= Dryopteris ovata (R.P.St.John) M.Broun; Index No. Amer. Ferns: 76 (1938)
= Dryopteris ovata var. harperi (C.Chr.) M.Broun; Index No. Amer. Ferns: 76 (1938)
= Thelypteris normalis var. harperi (C.Chr.) Wherry; S. Fern Guide 346 (1964)
= Thelypteris ovata R.P.St.John; Ferns S.E. States [Small] 230 (1938)
= Thelypteris ovata var. harperi (C.Chr.) R.P.St.John ex Small; Ferns S.E. States [Small] 233 (1938)
variant :
var. lindheimeri (C.Chr.) A.R.Sm.; Sida, Bot. Misc. 59: 64 (2021)
Name: Lindheimers Maiden Fern
Distribution: USA (Texas); Mexico (Campeche, Chiapas, Chihuahua, Coahuila, Guerrero, Hidalgo, Mexico State, Morelos, Nayarit, Nuevo Leon, Oaxaca, Puebla, Queretaro, Quintana Roo, San Luis Potosi, Tamaulipas, Veracruz); Guatemala; Belize; Honduras; Jamaica
77 USA 79 MEX 80 BLZ GUA HON 81 JAM
Synonyms: hidden
= Cyclosorus ovatus var. lindheimeri (C.Chr.) Mazumdar & R.Mukhop.; Bionature 33(1): 27 (2013)
= Cyclosorus ×lindheimeri (C.Chr.) Mazumdar; Ann. Bot. Fenn. 50(6): 399 (2013)
= Dryopteris augescens var. lindheimeri (C.Chr.) M.Broun; Index No. Amer. Ferns: 62 (1938)
= Dryopteris normalis var. lindheimeri C.Chr.; Kongel. Danske Vidensk. Selsk. Skr., Naturvidensk. Math. Afd., Ser. 7, 10: 182 (1913)
= Thelypteris augescens var. lindheimeri (C.Chr.) R.P.St.John ex Small; Ferns S.E. States [Small] 241 (1938)
= Thelypteris ovata var. lindheimeri (C.Chr.) A.R.Sm.; Amer. Fern J. 61: 30 (1971)
= Thelypteris ×lindheimeri (C.Chr.) Wherry; Amer. Fern J. 54: 145 (1964)
species :
Pelazoneuron oviedoae (C.Sánchez & Zavaro) C.Sánchez; Cat. Plantas de Cuba 1259 (2024)
Distribution: Cuba
81 CUB
Remarks: status uncertain, a sterile hybrid, not an Amauropelta
Synonyms: hidden
= Amauropelta oviedoae (C.Sánchez & Zavaro) Salino & T.E.Almeida; PhytoKeys 57: 28 (2015)
= Thelypteris oviedoae C.Sánchez & Zavaro; Fontqueria 31: 225 (1991)
species :
Pelazoneuron patens (Sw.) A.R.Sm. & S.E.Fawc.; Sida, Bot. Misc. 59: 64 (2021)
Name: Gridscale maiden fern
Distribution: USA (S-Florida); Mexico (Campeche, Chiapas, Guerrero, Hidalgo, Jalisco, Mexico State, Michoacan, Nayarit, Oaxaca, Puebla, Queretaro, San Luis Potosi, Tabasco, Veracruz); Guatemala; Belize; El Salvador; Honduras; Nicaragua; Costa Rica; Panama; Cuba; Jamaica; Hispaniola (Dominican Republic, Haiti); Puerto Rico; Virgin Isl. (St. Croix, St. Thomas); Antigua; Montserrat; Guadeloupe; Dominica; Martinique; Grenada; Barbados; Tobago; Trinidad; Colombia (Antioquia, Boyacá, Caldas, Cauca, Choco, Cundinamarca, Huila, Magdalena, Nariño, Putumayo, Santander, Tolima, Valle); Venezuela (Anzoategui, Aragua, Carabobo, Cojedes, Venezuela Distrito Federal, Falcon, Lara, Merida, Miranda, Monagas, Portuguesa, Tachira, Trujillo, Yaracuy, Zulia); Ecuador; Galapagos; Peru; Bolivia (Beni, Chuquisaca, Cochabamba, La Paz, Santa Cruz); Brazil (Acre, Alagoas, Ceará, Brasilia Distrito Federal, Espírito Santo, Goiás, Minas Gerais, Mato Grosso do Sul, Mato Grosso, Pernambuco, Paraná, Rio de Janeiro, Rio Grande do Sul, Santa Catarina, São Paulo); Paraguay (Alto Paraná, Amambay, Caaguazu, San Pedro); Argentina (?Corrientes, Jujuy, Salta, Misiones)
78 USA 79 MEX 80 BLZ COS ELS GUA HON NIC PAN 81 ABA BBD CUB DOM GDL GRE HIS JAM MAR MTS PUE TRT VIR 82 CLM VEN 83 BOL ECU GAL PER 84 BRA 85 ARG PAR
Synonyms: hidden
= Aspidium abruptum M.Martens & Galeotti; Nouv. Mém. Acad. Roy. Sci. Bruxelles 15 (Mém. Lycopod.): 65 (1842), nom. illeg., non Blume 1828 nec Kunze 1834
= Aspidium albescens (Desv.) Mett.; Nomencl. Gefäßkrypt. 42 (1883)
= Aspidium deversum (T.Moore) Kunze; Linnaea 23: 226, 299 (1860) (p. p.)
= Aspidium invisum Raddi; Opusc. Sci. 3: 281) (1819)
= Aspidium invisum var. schkuhrii Griseb.; Fl. Brit. W. I. [Grisebach] 692 (1864)
= Aspidium macrourum Kaulf.; Flora 1828(1): 365 (1828)
= Aspidium nephrodioides Fée; Crypt. Vasc. Brésil 1: 138, t. 46 t 1 (1869) (nom. illeg.)
= Aspidium patens (Sw.) Sw.; J. Bot. [Schrader] 1800(2): 34 (1801)
= Aspidium patens var. dissimile (Schrad.) Kunze; Linnaea 23: 229 (1850)
= Aspidium patens var. macrourum (Kaulf.) J.Bommer & Christ; Bull. Soc. Roy. Bot. Belgique 35(1): 210 (1896)
= Aspidium pauper Fée; Mém. Foug. 8 (Icon. Esp. Nouv.): 103 (1857)
= Aspidium scabriusculum (C.Presl) Mett.; Nomencl. Gefäßkrypt. 69 (1883)
= Aspidium stipulare Willd.; Sp. Pl., ed. 4 [Willdenow] 5(1): 239 (1810)
= Christella deversa (Kunze) Pic.Serm.; Webbia 60: 180 (2005)
= Christella patens (Sw.) Holttum; Webbia 30(1): 193 (1976)
= Christella patens (Sw.) Pic.Serm.; Webbia 31(1): 252 (1977), isonym
= Christella raddii (Desv.) Pic.Serm.; Webbia 60(1): 179 (2005)
= Cyclosorus arcuatus var. lepidus (T.Moore) Alston; Amer. Fern J. 45: 119 (1955)
= Cyclosorus patens (Sw.) Vareschi; Fl. Venez. 1: 444 (1969) (non (Fée) Copel.)
= Dryopteris deversa (T.Moore) Hieron.; Hedwigia 46: 326 (1906)
= Dryopteris deversa var. minor Hieron.; Hedwigia 46: 326 (1907)
= Dryopteris deversa var. tarapotensis Rosenst.; Repert. Spec. Nov. Regni Veg. 7: 298 (1909)
= Dryopteris lepida (T.Moore) C.Chr.; Index Filic. 274 (1905)
= Dryopteris macroura (Kaulf.) Kuntze; Revis. Gen. Pl. 2: 813 (1891)
= Dryopteris patens (Sw.) Kuntze; Revis. Gen. Pl. 2: 813 (1891)
= Dryopteris patens f. scabriuscula (C.Presl) Bonap.; Notes Ptéridol. 2: 130 (1915)
= Dryopteris patens f. stipularis (Willd.) Luetzelb.; Estud. Bot. Nordéste 3: 244 (1926)
= Dryopteris patens var. dependens C.Chr.; Kongel. Danske Vidensk. Selsk. Skr., Naturvidensk. Math. Afd., Ser. 7, 10: 178 (1913)
= Dryopteris patens var. deversa (T.Moore) C.Chr.; Kongel. Danske Vidensk. Selsk. Skr., Naturvidensk. Math. Afd., Ser. 7, 10(2): 179 (1913)
= Dryopteris patens var. glandulosa A.A.Eaton; Bull. Torrey Bot. Club 33: 477 (1906)
= Dryopteris patens var. macroura (Kaulf.) Blank.; Rep. (Annual) Missouri Bot. Gard. 18: 200 (1907)
= Dryopteris patens var. scabriuscula (C.Presl) C.Chr.; Kongel. Danske Vidensk. Selsk. Skr., Naturvidensk. Math. Afd., Ser. 7, 10(2): 179 (1913)
= Dryopteris patens var. stipularis (Willd.) Bonap.; Notes Ptéridol. 2: 130 (1915)
= Dryopteris patens var. tarapotensis (Rosenst.) C.Chr.; Kongel. Danske Vidensk. Selsk. Skr., Naturvidensk. Math. Afd., Ser. 7, 10(2): 180 (1913)
= Dryopteris stipularis (Willd.) Maxon; Bull. Torrey Bot. Club 33: 198 (1906)
= Filix patens (Sw.) Farw.; Rep. (Annual) Michigan Acad. Sci. 18: 81-83 (1916)
= Filix patens var. stipularis (Willd.) Farw.; Rep. (Annual) Michigan Acad. Sci. 18: 82 (1916)
= Filix-mas patens (Sw.) Farw.; Amer. Midl. Naturalist 12: 234-251 (1931)
= Lastrea abrupta Liebm.; Kongel. Danske Vidensk. Selsk. Skr., Naturvidensk. Math. Afd., Ser. 5, 1: 274 (1849), nom. nov. for Aspidium abruptum M. Martens & Galeotti, nom. illeg., non C. Presl 1836
= Lastrea albicaulis T.Moore; Index Fil. [T. Moore] 85 (1858)
= Lastrea angustata C.Presl; Tent. Pterid. 76 (1836), nom. illeg. superfl. for Aspidium macrourum Kaulf.
= Lastrea deversa T.Moore; Index Fil. [T. Moore] 90 (1858)
= Lastrea kohautiana C.Presl; Tent. Pterid. 76 (1836), nom. nud.
= Lastrea lepida T.Moore; Gard. Chron., Ser. 2, 20: 681 (1886)
= Lastrea macroura (Kaulf.) C.Presl; Tent. Pterid. 75 (1836)
= Lastrea patens (Sw.) C.Presl; Tent. Pterid. 75 (1836)
= Lastrea pauperis (Fée) T.Moore; Index Fil. [T. Moore] 99 (1858)
= Lastrea scabriuscula C.Presl; Tent. Pterid. 75 (1851), nom. nud.
= Nephrodium albescens Desv.; Mém. Soc. Linn. Paris 6(3): 258 (1827)
= Nephrodium deversum (T.Moore) Rosenst.; Hedwigia 43: 224 (1904)
= Nephrodium dissimile Schrad.; Gött. Gel. Anz. 869 (1824)
= Nephrodium lepidum (T.Moore) Baker; Ann. Bot. (Oxford) 6: 318 (1891), isonym
= Nephrodium lepidum (T.Moore) G.Nicholson; Ill. Dict. Gard. 4: 573 (1888)
= Nephrodium macrourum (Kaulf.) Hook.; Sp. Fil. [W.J.Hooker] 4: 96 (1862), isonym
= Nephrodium macrourum (Kaulf.) Schott; Gen. Fil. [Schott] ad t. 10 (1834)
= Nephrodium patens (Sw.) Desv.; Mém. Soc. Linn. Paris 6(2): 258 (1827)
= Nephrodium patens f. glandulosum (A.A.Eaton) Clute; Fern Bull. 15: 22 (1907)
= Nephrodium patens var. stipulare (Willd.) Baker; Fl. Bras. [Martius] 1(2): 470 (1870)
= Nephrodium polytrichum Schrad.; Gött. Gel. Anz. 869 (1824)
= Nephrodium raddii Desv.; Mém. Soc. Linn. Paris 6(2): 258 (1827)
= Nephrodium stipulare (Willd.) Desv.; Mém. Soc. Linn. Paris 6(2): 256 (1827)
= Nephrodium stipulare var. macrourum (Kaulf.) Jenman; Bull. Bot. Dept., Jamaica, n. s. 3: 93 (1896)
= Nephrodium stipulare var. pseudopatens Jenman; Bull. Bot. Dept., Jamaica 3: 93 (1896)
= Polypodium odorum Vell.; Fl. Flumin. 11: t. 78 (1831)
= Polypodium patens Sw.; Prodr. [Swartz] 133 (1788)
= Polystichum patens (Sw.) Bernh.; J. Bot. [Schrader] 1799(1): 298 (1799), ex Gaudich., Voy. Uranie [Freycinet], Bot. 329 (1827)
= Thelypteris patens (Sw.) Small; Ferns S.E. States [Small] 243 (1938)
= Thelypteris patens var. dependens (C.Chr.) Proctor; Bull. Inst. Jamaica, Sci. Ser. 5: 63 (1953)
= Thelypteris patens var. dissimilis (Schrad.) A.R.Sm.; Univ. Calif. Publ. Bot. 59: 75 (1971)
= Thelypteris patens var. scabriuscula (C.Presl) A.R.Sm.; Univ. Calif. Publ. Bot. 59: 76 (1971)
species :
Pelazoneuron puberulum (Baker) A.R.Sm. & S.E.Fawc.; Sida, Bot. Misc. 59: 64 (2021)
Distribution: Mexico (Aguascalientes, Baja California Norte, Baja California Sur, Chiapas, Chihuahua, Coahuila, Colima, Durango, Guanajuato, Guerrero, Hidalgo, Jalisco, Mexico State, Michoacan, Morelos, Nayarit, Nuevo Leon, Oaxaca, Puebla, Queretaro, Quintana Roo, San Luis Potosi, Sinaloa, Sonora, Tamaulipas, Veracruz, Zacatecas); Guatemala; ?El Salvador; Honduras; Costa Rica; Hispaniola (Haiti)
79 MEX 80 COS GUA HON 81 HIS
Synonyms: hidden
= Aspidium orizabae Fée; Mém. Foug. 8 (Icon. Esp. Nouv.): 104 (1857)
= Aspidium puberulum (Baker) Fée; Mém. Foug. 10 (Icon. Esp. Nouv.): 40 (1865) (non Desv. (1827) nec Gand. (1827))
= Christella puberula (Baker) Á.Löve & D.Löve; Taxon 26(2-3): 326 (1977)
= Cyclosorus orizabae (Fée ex E.Fourn.) Mazumdar & R.Mukhop.; Bionature 33(1): 27 (2013)
= Dryopteris augescens var. puberula (Baker) C.Chr.; Kongel. Danske Vidensk. Selsk. Skr., Naturvidensk. Math. Afd., Ser. 7, 10(2): 184 (1913)
= Dryopteris feei C.Chr.; Index Filic. 264 (1905)
= Dryopteris orizabae (Fée) C.Chr.; Index Filic. 281 (1905)
= Dryopteris puberula (Baker) Kuntze; Revis. Gen. Pl. 2: 813 (1891)
= Filix-mas augescens var. puberula (Baker) Farw.; Amer. Midl. Naturalist 12: 253 (1931)
= Lastrea orizabae (Fée) T.Moore; Index Fil. [T. Moore] 99 (1858)
= Nephrodium puberulum Baker; Syn. Fil. [W.J.Hooker & Baker], ed. 2: 495 (1874)
= Thelypteris augescens var. puberula (Baker) Munz & I.M.Johnst.; Proc. Calif. Acad. Sci. Ser. 4, 12: 981 (1924)
= Thelypteris feei (C.Chr.) Moxley; Bull. S. Calif. Acad. Sci. 20: 35 (1921)
= Thelypteris orizabae (Fée) Christenh.; Global Fl. 4: 35 (2018)
= Thelypteris puberula (Baker) C.V.Morton; Amer. Fern J. 48: 138 (1958)
variant :
var. sonorense (A.R.Sm.) A.R.Sm. & S.E.Fawc.; Sida, Bot. Misc. 59: 64 (2021)
Name: Sonoran maiden fern
Distribution: USA (S-California, Arizona); Mexico (Baja California Norte, Baja California Sur, Chihuahua, Colima, Durango, Guanajuato, Michoacan, Nayarit, Jalisco, San Luis Potosi, Sinaloa, Sonora)
76 USA 79 MEX
Conservation Status: IUCN R
Synonyms: hidden
= Thelypteris puberula var. sonorensis A.R.Sm.; Univ. Calif. Publ. Bot. 59: 91 (1971)
species :
Pelazoneuron schizotis (Hook.) A.R.Sm. & S.E.Fawc.; Sida, Bot. Misc. 59: 64 (2021)
Distribution: El Salvador; Honduras; Costa Rica; Panama; Cuba; Jamaica; Hispaniola (Dominican Republic, Haiti); Puerto Rico; Nevis; St. Kitts; Montserrat; Guadeloupe; Dominica; Martinique; St. Vincent; Trinidad; Colombia (Santander); Colombia (Valle); Venezuela (Aragua, Zulia); Ecuador; Galapagos; Peru; Bolivia (Beni, Chuquisaca, Cochabamba, La Paz, Santa Cruz); Paraguay (Guaira, Paraguari); Argentina (Chaco, Corrientes, Entre Rios, Jujuy, Misiones, Salta, Tucuman)
80 COS ELS HON PAN 81 CUB DOM GDL HIS JAM MAR MTS PUE STK STV TRT 82 CLM VEN 83 BOL ECU GAL PER 85 ARG PAR
Synonyms: hidden
= Aspidium molle var. guadalupense Christ ex Duss; Div. Foug. Antill. Franç. 97 (1903)
= Christella schizotis (Hook.) A.R.Sm.; Phytotaxa 331(1): 21 (2017)
= Nephrodium schizotis Hook.; Sp. Fil. [W.J.Hooker] 4: 107 (1862)
= Thelypteris patens var. smithiana Ponce; Darwiniana 28(1-4): 373 (1987 publ. 1988)
= Thelypteris schizotis (Hook.) M.Kessler & A.R.Sm.; Monogr. Syst. Bot. Missouri Bot. Gard. 127: 1272 (2014)
species :
Pelazoneuron serra (Sw.) A.R.Sm. & S.E.Fawc.; Sida, Bot. Misc. 59: 64 (2021)
Distribution: Cuba; Jamaica; Hispaniola (Dominican Republic, Haiti); Puerto Rico
81 CUB HIS JAM PUE
Synonyms: hidden
= Aspidium incisum (Sw.) Sw.; Syn. Fil. (Kiliae) [O.Swartz] 47 (1806)
= Aspidium serra (Sw.) Sw.; J. Bot. [Schrader] 1800(2): 33 (1801)
= Christella serra (Sw.) Holttum; Webbia 30(1): 194 (1976)
= Christella serra (Sw.) Pic.Serm.; Webbia 31(1): 252 (1977), isonym
= Cyclodium serra (Sw.) Brongn.; Voy. Venus, Bot. [Atl.], t. 5 (1846)
= Cyclosorus serra (Sw.) Farw.; Amer. Midl. Naturalist 12: 259 (1931)
= Dryopteris serra (Sw.) Kuntze; Revis. Gen. Pl. 2: 813 (1891)
= Lastrea serra (Sw.) C.Presl; Tent. Pterid. 75 (1836)
= Lastrea serra (Sw.) Copel.; Ann. Cryptog. Phytopathol. 5 [Gen. Fil.]: 140 (1947)
= Nephrodium serra (Sw.) Desv.; Mém. Soc. Linn. Paris 6(2): 253 (1827) (non Hook. (1862))
= Polypodium serra Sw.; Prodr. [Swartz] 132 (1788)
= Polypodium serratum Vell.; Fl. Flumin. 11: t. 77 (1831)
= Thelypteris serra (Sw.) R.P.St.John; Ferns S.E. States [Small] 241 cum tab. 475 (1938)
species :
Pelazoneuron tuerckheimii (Donn.Sm.) A.R.Sm. & S.E.Fawc.; Sida, Bot. Misc. 59: 64 (2021)
Distribution: Mexico (Chiapas, Oaxaca); Guatemala
79 MEX 80 GUA
Conservation Status: IUCN R
Synonyms: hidden
= Cyclosorus tuerckheimii (Donn.Sm.) Mazumdar & R.Mukhop.; Bionature 33(1): 33 (2013)
= Dryopteris tuerckheimii (Donn.Sm.) C.Chr.; Index Filic. 299 (1905)
= Lastrea tuerckheimii (Donn.Sm.) Copel.; Ann. Cryptog. Phytopathol. 5 [Gen. Fil.]: 140 (1947)
= Nephrodium tuerckheimii Donn.Sm.; Bot. Gaz. 12: 133, t. 11 (1887)
= Thelypteris tuerckheimii (Donn.Sm.) C.F.Reed; Phytologia 17: 321 (1968)
species :
Pelazoneuron ×invisum (Sw.) C.Sánchez; Cat. Plantas de Cuba 1260 (2024), pro spec.
Distribution: Jamaica; Hispaniola (Haiti); Puerto Rico; Virgin Isl. (St. Thomas); ?Ecuador; ?Peru
81 HIS JAM PUE VIR
Remarks: Status uncertain, probably of hybridogenous origin
Synonyms: hidden
= Aspidium invisum Sw.; J. Bot. [Schrader] 1800(2): 34 (1801)
= Aspidium sloanei (Baker) Christ; Bull. Herb. Boissier, Sér. 2, 6: 162 (1906), as ´(Kuntze) Christ´
= Christella invisa (Sw.) Pic.Serm.; Webbia 31: 252 (1977)
= Christella oligophylla (Maxon) Brade; Bradea 1: 206 (1972), nom. superfl.
= Cyclosorus oligophyllus (Maxon) Brade; Bradea 1: 206 (1972), nom. superfl.
= Dryopteris oligophylla Maxon; Contr. U.S. Natl. Herb. 10: 489 (1908)
= Dryopteris patens subsp. invisa (Sw.) Bonap.; Notes Ptéridol. 2: 127 (1917), isonym
= Dryopteris patens subsp. invisa (Sw.) C.Chr.; Index Filic. 283 (1905)
= Dryopteris sloanei (Baker) Kuntze; Revis. Gen. Pl. 2: 813 (1891)
= Filix-mas patens var. invisa (Sw.) Farw.; Amer. Midl. Naturalist 12: 256 (1931)
= Lastrea invisa (Sw.) C.Presl; Tent. Pterid. 75 (1836)
= Nephrodium invisum (Sw.) Desv.; Mém. Soc. Linn. Paris 6(2): 257 (1827)
= Nephrodium patens var. invisum (Sw.) Baker; Fl. Bras. [Martius] 1(2): 470 (1870)
= Nephrodium serra Hook.; Sp. Fil. [W.J.Hooker] 4: 98 (1862) (non Desv. (1827))
= Nephrodium sloanei Baker; Syn. Fil. [W.J.Hooker & Baker], ed. 2: 263 (1874) (non C. Presl (1825))
= Polypodium invisum Sw.; Prodr. [Swartz] 133 (1788) (non G. Forst. (1786))
= Thelypteris ×invisa (Sw.) Proctor; Rhodora 61: 306 (1960)
= Thelypteris ×oligophylla (Maxon) Proctor; Bull. Inst. Jamaica, Sci. Ser. 5: 62 (1953), nom. superfl.
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A complete, synonymic checklist of the Higher Plants of the World

Version 25.07 (July 26th, 2025)

Covering 356,930 accepted species,
8,788 hybrids, 48,065 accepted infraspecific taxa and 1,003,736 synonyms,
in total 1,417,519* names

[*about 25,000 dubious, "unplaced" names and about 4,000 invalid names (Art. 24.3) like "typicus" are deliberately omitted]

With complete, detailed distribution data (countries and regions) and literature references

Arranged in linear phylogenetic sequence reflecting true relationships

Fully searchable and continously updated

With 38,209 pictures of 15,787 species

Assembled through 40 years independently from other databases

In cooperation with Catalogue of Life