Polypodiidae (Leptosporangiate Ferns)
Family: Aspleniaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Asplenium beckeri | Brade | (rediscovered) | Trindade island, Brazil | Rediscovered | Access | |
| Asplenium centrifugale | Bak., 1874 | ? | Christmas Island, Australia | Invalid (synonym)? | Access | |
| Asplenium dielmannii | Viane | (rediscovered) | Kaua`i, Hawaiian Islands, USA | Rediscovered | Access | |
| Asplenium leucostegioides | Baker | 1879 | Maui, Hawaiian Islands, USA | Missing | Access | |
| Asplenium stenopteron | Peter | ? | Tanzania | Missing | Access |
Family: Athyriaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Deparia kaalaana | (Copel.) M.Kato | 2016 | Hawai'i, Kauai & Maui, Hawaiian Islands, USA | Extinct in the wild | Access | |
| Deparia minamitanii | Seriz. | (rediscovered) | Kumamoto Prefecture & Miyazaki Prefecture, Kyushu, Japan | Rediscovered | Access | |
| Diplazium laffanianum | (Bak.) C. Chr. | Governor Laffan(’s) fern | 1905 | Bermuda | Extinct in the wild | Access |
| Diplazium ulugurense | Verdcourt, 2003 | 1970 | Bondwa (eastern slope), Uluguru Mountains, Tanzania | Missing | Access |
Family: Blechnaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Blechnum petiolare | (Sodiro) C.Chr. | c.100 years ago | forests of Chillanes on the slopes of Chimborazo, Bolívar province, Ecuador | Missing | Access | |
| Blechnum rimbachii | (Sodiro) C.Chr. | c.100 years ago | Azuay province, Ecuador | Missing | Access |
Family: Cyatheaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Cyathea cruciata | (Desv.) Lehnert | ? | French Guiana & Guyana | Missing | Access |
Family: Cystopteridaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Cystoathyrium chinense | Ching (year?) | (rediscovered) | China | Rediscovered | Access |
Family: Dennstaedtiaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Blotiella coriacea | Verdc., 2000 | 1971 | Uluguru Mountains (south), Tanzania | Missing | Access |
Family: Dryopteridaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Arachniodes yasu-inouei angustipinnula | Seriz. | 10 August 1976 | Japan | Missing | Access | |
| Ctenitis humilis | Holtt. | (rediscovered) | Bohol Island, Philippines | Rediscovered | Access | |
| Ctenitis microlepigera | (Nakai) Ching | (rediscovered) | Ogasawara Islands (=Bonin Islands), Japan | Rediscovered | Access | |
| Ctenitis paleolata | Copel. | ? | Pauai, Philippines | Missing | Access | |
| Ctenitis palatangana | (Hook.) Ching | pre-1883 | Chimborazo Province, Ecuador | Missing | Access | |
| Dryopteris ascensionis | (Hook.) Kuntze | 1889 (1976?) | Green Mountain area, Ascension Island | Extinct | Access | |
| Dryopteris meridionalis speluncae | C.Chr., 1920 | ? | Bermuda | Invalid (synonym) | Access | |
| Dryopteris shibipedis | Sa. Kurata (year?) | ? | Kagoshima Prefecture, Japan | Extinct in the wild | Access | |
|
Elaphoglossum actinolepis
|
(Sodiro) C.Chr. | Early 1900's | Esmeraldas province, Ecuador | Missing | Access | |
| Elaphoglossum angamarcanum | (Sodiro) C.Chr. | 1800's | Angamarca, Cotopaxi province, Ecuador | Missing | Access | |
|
Elaphoglossum beckeri
|
Brade | (rediscovered) | Trindade island, Brazil | Rediscovered | Access | |
| Elaphoglossum bonapartii | Rosenst. | ? | Morona-Santiago province, Ecuador | Missing | Access | |
| Elaphoglossum caespitosum | (Sodiro) H.Christ | c.110 years ago | on the banks of the Río Peripa, near San Miguel de los Colorados, Pichincha province, Ecuador | Missing | Access | |
| Elaphoglossum chodatii | (Sodiro) C.Chr. | Early 1900's | Río Oyacachi valley, Napo province, Ecuador | Missing | Access | |
| Elaphoglossum christii | (Sodiro) C.Chr. | ? | Pelagallo, west of Volcán Pululahua, Pichincha province, Ecuador | Missing | Access | |
| Elaphoglossum cinereum | (Sodiro) C.Chr. | Pre-1913 | the paramos of Volcán Antisana, Napo province, Ecuador | Missing | Access | |
| Elaphoglossum cladotrichium | (Sodiro) C.Chr. | Early 1900's | Nanegal, Pichincha province, Ecuador | Missing | Access | |
| Elaphoglossum corazonense | H.Christ | ? | western forests of Volcán El Corazón, south of Quito, Pichincha province, Ecuador | Missing | Access | |
| Elaphoglossum ellipsoideum | (Sodiro) C.Chr. | pre-1903 | forests near Oyacachi, Napo province, Ecuador | Missing | Access | |
| Elaphoglossum gossypinum | (Sodiro) C.Chr. | ? | near Guamaní, Napo or Pichincha province, Ecuador | Missing | Access | |
| Elaphoglossum gracilipes | (Fée ex Kuhn) C.Chr. | pre-1853 | Ecuador | Missing | Access | |
| Elaphoglossum heteromorphum | (Klotzsch) T.Moore | pre-1863 | western slopes of Volcán Pichincha, Pichincha province, Ecuador | Missing | Access | |
| Elaphoglossum jamesonii | (Hook. & Grev.) T.Moore | 1800's | base of Volcán Pichincha, Pichincha province, Ecuador | Missing | Access | |
| Elaphoglossum longissimum | (Sodiro) C.Chr. | pre-1903 | wet lowland forest on the banks of the Río Santiago, Esmeraldas province, Ecuador | Missing | Access | |
| Elaphoglossum pala | André ex H.Christ | (rediscovered) | Ecuador | Rediscovered | Access | |
| Elaphoglossum pellucidum | (Sodiro) C.Chr. | pre-1903 | on the banks of the Río Cachabí, near San Antonio, Esmeraldas province, Ecuador | Missing | Access | |
| Elaphoglossum polytrichum | H.Christ | 1800's | Lloa Valley, Ecuador | Missing | Access | |
| Elaphoglossum pteropodum | (Sodiro) C.Chr. | pre-1903 | between Santo Domingo and Alluriquín, Pichincha province, Ecuador | Missing | Access | |
| Elaphoglossum sodiroi | (Baker) H.Christ | late 1800's | the western slopes of Volcán Corazón, Pichincha province, Ecuador | Missing | Access | |
| Elaphoglossum sprucei | (Baker) Diels | pre-1863 | the base of Chimborazo, Bolívar province, Ecuador | Missing | Access | |
| Elaphoglossum trichophorum | (Sodiro) C.Chr. | early 1900's | "Volcán Tungurahua", Tungurahua province?, Ecuador | Missing | Access | |
|
Lastreopsis dissecta
|
(C.T.White & Goy) Labiak, Sundue & R.C.Moran | ? | Queensland, Australia | Missing | Access | |
|
Polystichum crinulosum
|
(Desv.) J. P. Roux | 1800's | Mauritius, Mascarene Islands | Missing | Access | |
| Polystichum fuentesii | Espinosa | ? | Easter Island (=Rapa Nui) | Missing | Access | |
| Polystichum kwakiutlii | D.H. Wagner, 1990 | 1934 | Alice Arm, British Columbia, Canada | Missing | Access |
Family: Hymenophyllaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
|
Hymenophyllum brachypus
|
Sodiro, 1893 | 1800's | Ecuador | Missing | Access | |
| Hymenophyllum contractile |
Sodiro, 1893
|
1893 or before | Ecuador | Missing | Access | |
| Hymenophyllum helicoideum | Sodiro, 1893 | 1893 or before | Ecuador | Missing | Access | |
| Hymenophyllum refrondescens | Sodiro, 1893 | 1893 or before | Ecuador | Missing | Access | |
| Hymenophyllum tenerum | Bosch (year?) | 1800's | Ecuador | Missing | Access | |
| Hymenophyllum trifidum | Hook. & Grev. (year?) | 1800's | Ecuador | Missing | Access | |
| Hymenophyllum whitei | Goy, 1941 | (rediscovered) | Thornton Peak, Queensland (north-eastern), Australia | Rediscovered | Access | |
| Trichomanes tenuissimum | Bosch | ? | Esmeraldas province, Ecuador | Missing or invalid | Access |
Family: Marattiaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Angiopteris tonkinensis | (Hayata) J.M.Camus | (rediscovered) | China & Vietnam | Rediscovered | Access |
Family: Ophioglossaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Botrychium subbifoliatum | Brack. | 1940 | Hawai'i, Kauai, Lanai, Maui, Molokai & Oahu, Hawaiian Islands, USA | Missing | Access |
Family: Polypodiaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Adenophorus periens | L.E.Bishop | 2014 | Hawai'i, Kauai, Lanai, Maui, Molokai & Oahu, Hawaiian Islands, USA | Missing | Access | |
| Grammitis quaerenda | Bolle | ? | Canary Islands, North Africa | Unresolved | Access | |
| Lepisorus cespitosus | Y.X.Lin | (rediscovered) | China & Tibet | Rediscovered | Access | |
| Melpomene brevipes | (C.V.Morton) A.R.Sm. & R.C.Moran | 1800's | Volcán Tungurahua, Tungurahua province, Ecuador | Missing | Access | |
| Oreogrammitis leonardii | Parris | (rediscovered) | Queensland, Australia | Rediscovered | Access | |
| Serpocaulon demissum | (Fée) Sanín & Salino, 2020 | (rediscovered) | Brazil | Rediscovered | Access |
Family: Psilotaceae
—No subordinate taxa
Family: Pteridaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Adiantum hispidulum whitei | (Bailey) Bostock | (rediscovered) | Queensland, Australia | Rediscovered | Access | |
| Adiantum lianxianense | Ching & Y.X.Ling in Y.X.Ling, 1980 | ? | Guangdong, China | Rediscovered? | Access | |
| Antrophyum austroqueenslandicum | D. L. Jones, 1998 | (rediscovered) | Queensland (south-eastern), Australia | Rediscovered | Access | |
| Gastoniella ascensionis | (Hook.) Li Bing Zhang & Liang Zhang | (rediscovered) | Ascension Island | Rediscovered | Access | |
| Nephopteris maxonii | Lellinger, 1966 | (rediscovered) | Colombia | Rediscovered | Access | |
| Vittaria longipes | Sodiro | 100+ years ago | Nanegal valley, Pichincha Province, Ecuador | Missing | Access |
Family: Thelypteridaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Christella altissima | Holttum | 100+ years ago | KwaZulu-Natal & Limpopo Province, South Africa | Missing | Access | |
|
Menisciopsis wailele |
(Flynn) S.E.Fawc. & A.R.Sm. | (rediscovered) | Kaua‘i, Hawaiian Islands, USA | Rediscovered | Access | |
| Thelypteris kingii | C.F.Reed | (rediscovered) | India | Rediscovered | Access |