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Hymenophyllum
Family: Hymenophyllaceae
Hymenophyllum image
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Donald R. Farrar in Flora of North America (vol. 2)
Plants epiphytic or on rock. Stems long-creeping, intertwining, threadlike; hairs brown, sparse. Roots few, delicate. Leaves 1--3-pinnatifid, 2--6 × 0.5--1.5 cm. Petiole short, threadlike, not winged. Blade with inconspicuous glandular hairs or prominent stellate hairs; margins entire to distantly dentate. Soral involucres 2-valved, the halves roundish to ovate. Sporangial receptacle a low mound of tissue included within involucre. Gametophytes persistent, ribbonlike, much branched. Gametophyte gemmae platelike or absent. Most species of Hymenophllyum occur in middle elevation rainforests; a few occur in continuously moist temperate habitats. Although all members of this genus are relatively small and delicate, leaves of many species outside the flora become considerably longer by indeterminate growth of the leaf apices.

Species within inventory project: North American Species Lists || << 1 - 50 taxa >>
Hymenophyllum abruptum
Image of Hymenophyllum abruptum
Hymenophyllum acanthoides
Image of Hymenophyllum acanthoides
Hymenophyllum acutum
Image of Hymenophyllum acutum
Hymenophyllum adiantoides
Image of Hymenophyllum adiantoides
Hymenophyllum aeruginosum
Image of Hymenophyllum aeruginosum
Hymenophyllum album
Images
not available
Hymenophyllum alveolatum
Image of Hymenophyllum alveolatum
Hymenophyllum amabile
Image of Hymenophyllum amabile
Hymenophyllum andinum
Image of Hymenophyllum andinum
Hymenophyllum angulosum
Image of Hymenophyllum angulosum
Hymenophyllum angustum
Image of Hymenophyllum angustum
Hymenophyllum antillense
Image of Hymenophyllum antillense
Hymenophyllum apiculatum
Image of Hymenophyllum apiculatum
Hymenophyllum applanatum
Images
not available
Hymenophyllum apteryx
Image of Hymenophyllum apteryx
Hymenophyllum archboldii
Image of Hymenophyllum archboldii
Hymenophyllum armstrongii
Image of Hymenophyllum armstrongii
Hymenophyllum asplenioides
Image of Hymenophyllum asplenioides
Hymenophyllum assurgens
Images
not available
Hymenophyllum australe
Image of Hymenophyllum australe
Hymenophyllum axillare
Image of Hymenophyllum axillare
Hymenophyllum badium
Image of Hymenophyllum badium
Hymenophyllum baileyanum
Image of Hymenophyllum baileyanum
Hymenophyllum balfourii
Images
not available
Hymenophyllum barbatum
Image of Hymenophyllum barbatum
Hymenophyllum bartlettii
Images
not available
Hymenophyllum batuense
Images
not available
Hymenophyllum bicolanum
Image of Hymenophyllum bicolanum
Hymenophyllum bivalve
Image of Hymenophyllum bivalve
Hymenophyllum blandum
Image of Hymenophyllum blandum
Hymenophyllum bontocense
Image of Hymenophyllum bontocense
Hymenophyllum brachyglossum
Image of Hymenophyllum brachyglossum
Hymenophyllum brachypus
Images
not available
Hymenophyllum braithwaitei
Image of Hymenophyllum braithwaitei
Hymenophyllum brasilianum
Image of Hymenophyllum brasilianum
Hymenophyllum brassii
Image of Hymenophyllum brassii
Hymenophyllum breve
Images
not available
Hymenophyllum brevidens
Image of Hymenophyllum brevidens
Hymenophyllum brevifrons
Image of Hymenophyllum brevifrons
Hymenophyllum brevistipes
Image of Hymenophyllum brevistipes
Hymenophyllum bryophilum
Image of Hymenophyllum bryophilum
Hymenophyllum caespitosum
Image of Hymenophyllum caespitosum
Hymenophyllum canaliculatum
Images
not available
Hymenophyllum caparaoense
Image of Hymenophyllum caparaoense
Hymenophyllum capense
Image of Hymenophyllum capense
Hymenophyllum capillaceum
Image of Hymenophyllum capillaceum
Hymenophyllum capillare
Image of Hymenophyllum capillare
Hymenophyllum capurroi
Image of Hymenophyllum capurroi
Hymenophyllum cardunculus
Image of Hymenophyllum cardunculus
Hymenophyllum catherinae
Image of Hymenophyllum catherinae

The PCC, and this data portal, were made possible by funding from the National Science Foundation’s Advancing Digitization of Biological Collections (ADBC) program, grant numbers 1802504, 1802352, 1802134, 1802033, 1802270, 1802255, 1802239, 1802446, 1802305.
The pteridoportal taxonomic thesaurus is based on the Checklist of Ferns and Lycophytes of the World, generously provided by Michael Hassler.