Difference between revisions of "Thelypteris subg. Cyclosorus"
Amer. Fern J. 53: 153. 1963.
Basionym: Undefined subg. Cyclosorus Link Hort. Berol. 2: 128. 1833
Treatment appears in FNA Volume 2.
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|genus=Thelypteris | |genus=Thelypteris | ||
|subgenus=Thelypteris subg. Cyclosorus | |subgenus=Thelypteris subg. Cyclosorus | ||
Latest revision as of 20:24, 5 November 2020
Distinguished from other subgenera by the combination of evergreen leaves, usually long- to short-creeping stems more than 5 mm diam., pinnate-pinnatifid blades with proximal pinnae usually not shortened (except Thelypteris hispidula and T. dentata), and some veins meeting margin at or below the sinuses. x = 36.
Discussion
Species 7–12 were monographed by A. R. Smith (1971), who treated them in Thelypteris sect. Cyclosorus. These same species were placed in Christella sect. Pelazoneuron by R. E. Holttum (1982, p. 553), who restricted use of Cyclosorus to Thelypteris interrupta (species 15 here) and two other species.
Selected References
None.