familyGleicheniaceae
genusDicranopteris
Show Lower Taxa
Difference between revisions of "Dicranopteris"
Neues J. Bot. 1(2): 38. 1805.
Common names: Forking ferns
Etymology: Greek dikranos, twice-forked, and pteris, fern, derived from pteron, feather, in reference to the leaf architecture
Treatment appears in FNA Volume 2.
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| − | --><span class="statement" id="st- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>long-creeping; hairs many celled, rigid to lax. <b>Leaves</b> usually separated several centimeters, of apparently indeterminate growth; pinnae opposite, in 1–several pairs, each pinna 1–many times forked, equal, each fork bearing arrested apex (bud) covered with tuft of hairs (all other axes glabrous) and pair of stipulelike appendages. <b>Penultimate</b> segments pectinate, in ± equal pairs, usually ascending. <b>Veins</b> 2–4-forked. <b>Sori</b> with 6–15 or more sporangia, not paraphysate. <b>Spores</b> trilete.</span><!-- |
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Revision as of 13:16, 27 July 2019
Stems long-creeping; hairs many celled, rigid to lax. Leaves usually separated several centimeters, of apparently indeterminate growth; pinnae opposite, in 1–several pairs, each pinna 1–many times forked, equal, each fork bearing arrested apex (bud) covered with tuft of hairs (all other axes glabrous) and pair of stipulelike appendages. Penultimate segments pectinate, in ± equal pairs, usually ascending. Veins 2–4-forked. Sori with 6–15 or more sporangia, not paraphysate. Spores trilete.
Distribution
Nearly worldwide in tropical and subtropical regions.
Discussion
Species 8–12 (1 in the flora).
Selected References
None.