Hymenophyllum
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.
| Hymenophyllum | |
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| A plate featuring Hymenophyllum species from The Ferns of Great Britain and Ireland | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Class: | Polypodiopsida |
| Order: | Hymenophyllales |
| Family: | Hymenophyllaceae |
| Subfamily: | Hymenophylloideae Burnett |
| Genus: | Hymenophyllum Sm. |
Species
- Hymenophyllum abruptum Hook.
- Hymenophyllum acanthoides (Bosch) Rosenst.
- Hymenophyllum acutum (C.Presl) Ebihara & K.Iwats.
- Hymenophyllum adiantoides Bosch
- Hymenophyllum album (Blume) Parris
- Hymenophyllum alishanense De Vol
- Hymenophyllum alveolatum C.Chr.
- Hymenophyllum asplenoides (Sw.) Sw. – Caribbean filmy fern
- Hymenophyllum axillare Sw., – axillary filmy fern
- Hymenophyllum australe Willd.
- Hymenophyllum barbatum (Bosch) Baker – beard filmy fern[1]
- Hymenophyllum brachypus Sodiro
- Hymenophyllum brevifrons Kunze – Antilles filmy fern
- Hymenophyllum contractile Sodiro
- Hymenophyllum cristatum Hook. & Grev.
- Hymenophyllum cupressiforme Labill. – common filmy fern
- Hymenophyllum decurrens (Jacq.) Sw. – Sierra de Luquillo filmy fern
- Hymenophyllum demissum (G. Forst.) Sw.
- Hymenophyllum falklandicum Baker
- Hymenophyllum flabellatum, Labill.
- Hymenophyllum fragile (Hedw.) Morton – fragile filmy fern
- Hymenophyllum frankliniae Colenso – rusty filmy fern
- Hymenophyllum fucoides (Sw.) Sw. – graceful filmy fern
- Hymenophyllum helicoideum Sodiro
- Hymenophyllum hirsutum (L.) Sw. – hairy filmy fern
- Hymenophyllum howense Brownlie
- Hymenophyllum lanatum Fée – woody filmy fern
- Hymenophyllum lanceolatum Hook. & Arn. – palaihinahina
- Hymenophyllum lineare (Sw.) Sw. – longtom filmy fern
- Hymenophyllum macrothecum Fée – mountain filmy fern
- Hymenophyllum megistocarpum (Copel.) C.V.Morton
- Hymenophyllum microcarpum Desv. – creeping filmy fern
- Hymenophyllum moorei Baker
- Hymenophyllum nanum Sodiro
- Hymenophyllum obtusum Hook. & Arn. – palailaulii
- Hymenophyllum paucicarpum Jenman – Jamaican filmy fern
- Hymenophyllum polyanthos (Sw.) Sw. – smooth filmy fern, Korean filmy fern[1]
- Hymenophyllum rarum R.Br.
- Hymenophyllum recurvum Gaudich. – ohiaku
- Hymenophyllum refrondescens Sodiro
- Hymenophyllum sieberi (C. Presl) Bosch – Sieber's filmy fern
- Hymenophyllum sodiroi C.Chr.
- Hymenophyllum tayloriae Farrar & Raine – Taylor's filmy fern
- Hymenophyllum tegularis (Desv.) Proctor & Lourteig – elegant filmy fern
- Hymenophyllum tenerum Bosch
- Hymenophyllum trifidum Hook. & Grev.
- Hymenophyllum tunbrigense (L.) Sm. – Tunbridge filmy fern
- Hymenophyllum undulatum (Sw.) Sw. – wavy filmy fern
- Hymenophyllum wilsonii Hook. – Wilson's filmy fern
- Hymenophyllum wrightii Bosch – Asian filmy fern
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See also
- Trichomanes, the members of which are also called filmy ferns.
References
- English Names for Korean Native Plants (PDF). Pocheon: Korea National Arboretum. 2015. p. 494. ISBN 978-89-97450-98-5. Archived from the original (PDF) on 25 May 2017. Retrieved 24 December 2016 – via Korea Forest Service.
External links
- Ferns of the genus Hymenophyllum observed in Cornwall
- More complete list of species
- Detailed photography of Hymenophyllum tunbrigense
- Filmy ferns webpage of School of Biological Sciences, University of Auckland, New Zealand
- J.E. Smith's original description of the genus online at Project Gutenberg
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