familyDennstaedtiaceae
genusOdontosoria
Show Lower Taxa
Difference between revisions of "Odontosoria"
5: 325. 1852.
Common names: Wedgelet fern
Etymology: Greek odous, tooth, and soros the sori are at the tips of toothed segments
Basionym: Sphenomeris Maxon
Treatment appears in FNA Volume 2.
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| − | --><span class="statement" id="st- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>terrestrial or on rock, not forming colonies. <b>Stems</b> creeping on substrate surface, mostly short; hairs brown, jointed (grading into long, narrow scales with uniseriate tip), not clathrate. <b>Leaves</b> closely spaced to quite distant, erect to arching, narrowly oblong [triangular, ovate, to irregularly shaped], 10–50 cm [to 6 m]. <b>Petiole</b> glabrous or with a few basal scales, stem buds absent, vascular bundles 1. <b>Blade</b> 3–4-pinnate [2–5-pinnate, sometimes scandent or climbing], ± glabrous [some species with spines on petiole, midrib, or costae]; rachises without prickles; nectaries absent. <b>Segments</b> nearly dichotomously divided; ultimate segments linear to cuneate, margins entire or bifid. <b>Veins</b> free, simple or forked. <b>Sori</b> terminal near blade margin on single vein or on commissure joining 2–8 veins, ± spheric to transversely elongate, indusia attached at base and sides, opening toward margin. <b>Spores</b> tetrahedral to nearly globose, or oblong, trilete or monolete, smooth or granulate. <b>x</b> = 38, 47.</span><!-- |
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Revision as of 14:14, 27 July 2019
Plants terrestrial or on rock, not forming colonies. Stems creeping on substrate surface, mostly short; hairs brown, jointed (grading into long, narrow scales with uniseriate tip), not clathrate. Leaves closely spaced to quite distant, erect to arching, narrowly oblong [triangular, ovate, to irregularly shaped], 10–50 cm [to 6 m]. Petiole glabrous or with a few basal scales, stem buds absent, vascular bundles 1. Blade 3–4-pinnate [2–5-pinnate, sometimes scandent or climbing], ± glabrous [some species with spines on petiole, midrib, or costae]; rachises without prickles; nectaries absent. Segments nearly dichotomously divided; ultimate segments linear to cuneate, margins entire or bifid. Veins free, simple or forked. Sori terminal near blade margin on single vein or on commissure joining 2–8 veins, ± spheric to transversely elongate, indusia attached at base and sides, opening toward margin. Spores tetrahedral to nearly globose, or oblong, trilete or monolete, smooth or granulate. x = 38, 47.
Distribution
Mostly tropical.
Discussion
Species 22 (1 in the flora).