Hymenophyllum is a genus of ferns in the family Hymenophyllaceae. Its name means "membranous leaf", referring to the very thin translucent tissue of the fronds, which gives rise to the common name filmy fern for this and other thin-leaved ferns. The leaves are generally only one cell thick and lack stomata, making them vulnerable to desiccation. Consequently, they are found only in very humid areas, such as in moist forests and among sheltered rocks. They are small and easy to overlook.
Quick Facts Scientific classification, Type species ...
| Hymenophyllum |
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| A plate featuring Hymenophyllum species from The Ferns of Great Britain and Ireland |
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Scientific classification  |
| Kingdom: |
Plantae |
| Clade: |
Tracheophytes |
| Division: |
Polypodiophyta |
| Class: |
Polypodiopsida |
| Order: |
Hymenophyllales |
| Family: |
Hymenophyllaceae |
| Subfamily: |
Hymenophylloideae
Burnett |
| Genus: |
Hymenophyllum
Sm. |
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| Type species |
Hymenophyllum tunbrigense
(L.) Sm. |
| Synonyms[1] |
- Amphipterum C.Presl 1849-51 ex (Copeland 1937) Copeland 1938
- Apteropteris (Copeland 1937) Copeland 1938
- Buesia (Morton 1932) Copeland 1938
- Cardiomanes C.Presl 1843
- Craspedoneuron van den Bosch 1861
- Craspedophyllum (Presl 1843) Copeland 1938
- Dermatophlebium C.Presl 1849-51
- Diploophyllum Bosch
- Hemicyatheon (Domin 1913) Copeland 1938
- Hymenoglossum K.B.Presl, 1843
- Leptocionium K.B.Presl, 1843
- Leucomanes Presl 1851
- Mecodium Presl ex (Copeland 1937) Copeland 1938
- Meringium K.B.Presl, 1843
- Microtrichomanes (Mettenius 1864 ex Prantl 1875) Copeland 1938
- Myriodon (Copeland 1937) Copeland 1938
- Myrmecostylum K.B.Presl, 1843
- Pachyloma van den Bosch 1861
- Pleuromanes (Presl 1851) Presl 1849-51
- Pseudomecodium (Iwatsuki 1984) Satou 1997
- Ptychomanes Hedwig 1800
- Ptychophyllum K.B.Presl, 1843
- Rosenstockia Copeland 1947
- Serpyllopsis van den Bosch 1861
- Sphaerocionium K.B.Presl, 1843
- Tetralasma Philippi 1860
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As of October 2022[update], World Ferns accepted the following extant species:[2]
More information Phylogeny of, Unassigned species: ...
| Phylogeny of Hymenophyllum[3][4] |
Unassigned species: |
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H. scabrum A.Rich. |
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H. sanguinolentum (G.Forst.) Sw. (Piripiri) |
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H. villosum Colenso |
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H. plicatum Kaulf. |
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H. seselifolium C.Presl |
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H. tortuosum Hook. & Grev. |
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H. pallidum (Blume) Ebihara & K.Iwats. |
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H. cruentum Cav. (Helecho película) |
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H. asplenioides (Sw.) Sw. |
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H. heimii Tardieu |
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H. paniense Ebihara & K.Iwats. |
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H. dilatatum (G.Forst.) Sw. |
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H. nephrophyllum Ebihara & K.Iwats. (Kidney fern) |
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H. fuciforme Sw. |
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H. pulcherrimum Colenso |
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H. caudiculatum Mart. (Pallante chilote) |
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H. pluviatile Perrie & Brownsey |
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H. australe Willd. (Austral filmy ferm) |
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H. fucoides (Sw.) Sw. |
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H. flexuosum A.Cunn. |
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H. gracilescens Domin |
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H. imbricatum Blume |
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H. javanicum Spreng. |
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H. riukiuense Christ |
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H. subobtusum Rosenst. |
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H. frankliniae Colenso |
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H. pilosissimum C.Chr. |
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H. lanceolatum Hook. & Arn. |
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H. obtusum Hook. & Arn. |
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H. lyallii Hook.fil. |
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H. neocaledonicum (C.Chr.) Rouhan & C.Del Rio |
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H. braithwaitei Ebihara & K.Iwats. |
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H. tomentosum Kunze |
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H. digitatum (Sw.) Fosberg |
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H. nitidulum (Bosch) Ebihara & K.Iwats. |
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H. palmatifidum (Müll.Berol.) Ebihara & K.Iwats. |
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| Microtrichomanes |
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H. malingii (Hook.) Mett. |
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H. hygrometricum (Poir.) Desv. |
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H. capillare Desv. |
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H. ferrugineum Colla |
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H. poolii Baker |
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H. rufum Fée |
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H. trichophyllum Kunth |
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H. plumosum Kaulf. |
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H. consanguineum C.V.Morton |
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H. microcarpum Desv. |
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H. cocosense A.Rojas |
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H. hirsutum (L.) Sw. |
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H. crassipetiolatum Stolze |
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H. crispum Kunth |
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H. delicatulum Sehnem |
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H. ivohibense Tardieu |
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H. splendidum Bosch |
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H. fragile (Hedw.) Morton |
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H. latifrons Bosch |
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H. elegans Spreng. |
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H. lineare (Sw.) Sw. |
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H. pulchellum Schltdl. & Cham. |
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H. saenzianum L.D.Gómez |
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H. semiglabrum Rosenst. |
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H. sieberi (C.Presl) Bosch |
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H. trapezoidale Liebm. |
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| Sphaerocionium |
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H. recurvum Gaudich. |
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H. mnioides Baker |
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H. rarum R.Br. (Narrow filmy fern) |
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H. novoguineense (Rosenst.) K.Iwats. |
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H. ooides F.Muell. & Baker ex Baker |
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H. cuneatum Kunze |
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H. inaequale (Poir.) Desv. |
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H. balfourii Baker |
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H. capense Schrad. |
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H. myriocarpum Hook. |
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H. apiculatum Mett. ex Kuhn |
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H. protrusum Hook. |
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H. undulatum (Sw.) Sw. |
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H. corrugatum Christ |
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H. kuhnii C.Chr. |
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H. sibthorpioides (Bory ex Willd.) Mett. ex Kuhn |
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H. wrightii Bosch |
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H. bryoides C.W.Chen, Ebihara & K.Y.Cheng |
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H. fujisanense Nakai |
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H. polyanthos (Sw.) Sw. (Smooth filmy fern) |
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H. punctisorum Rosenst. |
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H. mikawanum (Seriz.) Seriz. |
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H. fumarioides Bory ex Willd. |
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H. paniculiflorum C.Presl |
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H. longissimum (Ching & P.S.Chiu) K.Iwats. |
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H. parallelocarpum Hayata |
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| (Hymenophyllum) |
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H. armstrongii (Baker) Kuhn |
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H. marginatum Hook. & Grev. (Bordered filmy fern) |
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H. multifidum (G.Forst.) Sw. |
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H. minimum A.Rich. |
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H. pumilio Rosenst. |
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H. pectinatum Cav. |
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H. dentatum Cav. (Shushu-lahuén) |
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H. dicranotrichum (C.Presl) Sadeb. |
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H. caespitosum Gaudich. |
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H. rugosum C.Chr. & Skottsb. |
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H. cordobense (Hieron.) C.Larsen & Arana |
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H. tunbrigense (L.) Sm. (Tunbridge‘s filmy fern) |
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| Hymenophyllum |
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H. simonsianum Hook. |
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H. humbertii C.Chr. |
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H. perrieri Tardieu |
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| Dimidiata |
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H. baileyanum Domin |
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H. blandum Racib. |
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H. deplanchei Mett. ex Kuhn |
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| Hemicyatheon |
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H. rolandi-principis Rosenst. |
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H. dimidiatum Mett. ex Kuhn |
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H. soriemersum Rouhan & C.Del Rio |
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H. macgillivrayi (Baker) Copel. |
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H. serrulatum (C.Presl) C.Chr. |
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H. chamaecyparicola T.C.Hsu & Z.X.Chang |
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H. devolii M.J.Lai |
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H. exsertum Wall. ex Hook. |
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H. oligosorum Makino |
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H. praetervisum Christ |
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H. fuscum (Blume) Bosch |
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H. holochilum (Bosch) C.Chr. |
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H. pachydermicum Ces. |
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H. barbatum (Bosch) Baker |
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H. acanthoides (Bosch) Rosenst. |
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H. denticulatum Sw. |
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| Amphipterum |
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Close
Extinct species include:
