Difference between revisions of "Hymenophyllum"
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--><p>Species ca. 310 (3 in the flora).</p> | --><p>Species ca. 310 (3 in the flora).</p> | ||
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| + | |id=taylor1938a | ||
| + | |text=Taylor, M. S. 1938. Filmy-ferns in South Carolina. J. Elisha Mitchell Sci. Soc. 54: 345--348. | ||
| + | }}{{Treatment/Reference | ||
| + | |id=wagner1970a | ||
| + | |text=Wagner, W. H. Jr., D. R. Farrar, and B. W. McAlpin. 1970. Pteridology of the Highlands Biological Station area, southern Appalachians. J. Elisha Mitchell Sci. Soc. 86: 1--27. | ||
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|family=Hymenophyllaceae | |family=Hymenophyllaceae | ||
|distribution=Worldwide in tropical regions. | |distribution=Worldwide in tropical regions. | ||
| − | |reference= | + | |reference=taylor1938a;wagner1970a |
|publication title= | |publication title= | ||
|publication year=1793 | |publication year=1793 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V2/V2_29.xml |
|genus=Hymenophyllum | |genus=Hymenophyllum | ||
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-->[[Category:Treatment]][[Category:Hymenophyllaceae]] | -->[[Category:Treatment]][[Category:Hymenophyllaceae]] | ||
Revision as of 20:49, 16 December 2019
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.
Distribution
Worldwide in tropical regions.
Discussion
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 ca. 310 (3 in the flora).
Selected References
Key
| 1 | Leaf blades glabrous. | > 2 |
| 1 | On wet rock or epiphytic on bark and decaying wood of large conifers; coastal British Columbia, Alaska. | Hymenophyllum wrightii |
| 2 | Blade segments and involucres dentate. | Hymenophyllum tunbrigense |
| 2 | Blade segments and involucres entire. | Hymenophyllum wrightii |