Show Lower Taxa
Difference between revisions of "Thelypteris subg. Thelypteris"
Treatment appears in FNA Volume 2.
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Latest revision as of 20:23, 5 November 2020
Distinguished from other subgenera by the combination of seasonal leaves, long-creeping stems 1–3 mm diam., pinnate-pinnatifid blades, veins often forked and meeting margins above the sinuses, scales along the abaxial costae, and by the proximal pinnae not or only slightly shortened. x = 35.
Discussion
Thelypteris palustris and T. confluens (Thunberg) C. V. Morton from the Southern Hemisphere constitute the subgenus Thelypteris, according to R. E. Holttum (1971).
Selected References
None.