Hymenophyllum
Sign in to saveHymenophyllum 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.
Species
GENUS
- KingdomPlantae
- PhylumTracheophyta
- ClassPolypodiopsida
- OrderHymenophyllales
- FamilyHymenophyllaceae
Native toAlabama, Alaska, Amsterdam-St.Paul Is., Andaman Is., Angola, Antipodean Is., Argentina Northeast, Argentina Northwest, Argentina South, Assam, Azores, Belgium
El género Hymenophyllum son helechos reviviscentes, plantas vasculares con ciclo de vida haplodiplonte donde la alternancia de generaciones es bien manifiesta, con esporófito y gametófito multicelulares e independientes. Se les conoce también como helechos película, a lo cual alude también su nombre latino, debido a lo delgado de sus hojas o frondes, del griego hymen, que significa membrana y phyllon, que significa hojas, aludiendo a las láminas delgadísimas de estos helechos. Hay unas 250 especies. La mayoría de ellas son de zonas tropicales, pero también las hay de zonas templadas. En la laurisilva valdiviana se contabilizan 19 especies, 5 endémicas. Especies Hymenophyllum alveolatum, C.Chr. Hymenophyllum barbatum Hymenophyllum brachypus, Sodiro Hymenophyllum contractile, Sodiro Hymenophyllum cristatum, Hook. & Grev. Hymenophyllum cupressiforme Common Filmy Fern, Labill. Hymenophyllum demissum Hymenophyllum flabellatum, Labill. Hymenophyllum helicoideum, Sodiro Hymenophyllum megistocarpum, (Copel.) C.V.Morton Hymenophyllum moorei, Baker Hymenophyllum nanum, Sodiro Hymenophyllum refrondescens, Sodiro Hymenophyllum sodiroi, C.Chr. C.Chr. Hymenophyllum tenerum, Bosch Hymenophyll
via GBIF · Kew POWO
Article
4 sectionsContents
- Species
- See also
- References
- External links
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.
==Species== , World Ferns accepted the following extant species: