Log In New Account Sitemap
  • Home
  • Search
    • Search Collections
    • Map Search
    • Dynamic Species List
    • Exsiccati
    • Taxonomic Explorer
  • Images
    • Image Browser
    • Search Images
  • Species Checklists
    • North America
  • Crowdsource
  • Contacts
    • Partners
  • Acknowledgements
Trichomanes
Family: Hymenophyllaceae
Trichomanes image
  • FNA
  • Gleason & Cronquist
  • Resources
Donald R. Farrar in Flora of North America (vol. 2)
Plants epiphytic or on rock. Stems long-creeping or short and erect, clothed in masses of dark brown hairs of 2 or more types, including multicellular gland-tipped hairs and elongate, sometimes branched and often multicellular, rhizoidlike hairs. Roots sparse or absent on creeping stems, numerous and wiry on erect stems. Leaves entire, lobed, or compound, 0.5--20 × 0.2--5 cm. Petiole short, wiry, often partially or wholly winged. Blade glabrous or with scattered, multicellular, gland-tipped hairs on veins; margins entire or minutely lobed, sometimes bearing dark stellate hairs (or orbicular scales, Trichomanes membranaceum ). Soral involucres conic. Sporangia sessile, formed at base of exserted bristle and carried outward by intercalary growth of bristle base. Gametophytes persistent, entirely filamentous or with proximal filamentous net producing aerial blades with gemmiferous apices. Gametophyte gemmae uniseriate. Trichomanes occurs primarily in tropical lowland and montane rainforests, a few species occurring in continuously moist, deeply sheltered habitats in temperate latitudes. Species outside the flora display a wide range of morphologies and habits. Some are terrestrial, some attain considerably larger size, and some have dimorphic fertile and sterile leaves. Filamentous gametophytes of Trichomanes can be distinguished from algae and from moss protonemata by their short cells with numerous discoid chloroplasts, by the presence of short, brown, unicellular rhizoids, and by their production of specialized gemmifer cells and gemmae.

Vascular plants of NE US and adjacent Canada
Sori marginal, in tubular indusial pockets, the sporangia on a slender, bristle-like axis that may be exserted from the indusium. 275, warm reg.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
Species within inventory project: North American Species Lists || << 51 - 75 taxa >>
Trichomanes pilosum
Image of Trichomanes pilosum
Trichomanes pinnatifidum
Image of Trichomanes pinnatifidum
Trichomanes pinnatum
Image of Trichomanes pinnatum
Trichomanes plumosum
Image of Trichomanes plumosum
Trichomanes poeppigii
Images
not available
Trichomanes polypodioides
Image of Trichomanes polypodioides
Trichomanes procerum
Image of Trichomanes procerum
Trichomanes resinosum
Image of Trichomanes resinosum
Trichomanes ribae
Images
not available
Trichomanes robustum
Image of Trichomanes robustum
Trichomanes roraimense
Image of Trichomanes roraimense
Trichomanes scandens
Image of Trichomanes scandens
Trichomanes sellowianum
Image of Trichomanes sellowianum
Trichomanes spruceanum
Image of Trichomanes spruceanum
Trichomanes steyermarkii
Image of Trichomanes steyermarkii
Trichomanes sublabiatum
Image of Trichomanes sublabiatum
Trichomanes superbum
Image of Trichomanes superbum
Trichomanes tanaicum
Image of Trichomanes tanaicum
Trichomanes trichopodium
Image of Trichomanes trichopodium
Trichomanes trigonum
Image of Trichomanes trigonum
Trichomanes trollii
Image of Trichomanes trollii
Trichomanes tuerckheimii
Image of Trichomanes tuerckheimii
Trichomanes vandenboschii
Image of Trichomanes vandenboschii
Trichomanes vaupesensis
Image of Trichomanes vaupesensis
Trichomanes vittaria
Image of Trichomanes vittaria

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.