Show Lower Taxa
Difference between revisions of "Thelypteris subg. Lastrea"
J. Wash. Acad. Sci. 48: 232. 1958.
Basionym: Nephrodium subg. Lastrea Hooker Sp. Fil. 4: 5, 84. 1862
Treatment appears in FNA Volume 2.
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Revision as of 18:55, 24 September 2019
Distinguished from other subgenera by the combination of seasonal leaves, short-creeping to suberect stems hidden by old petiole bases, persistently scaly petioles, pinnate-pinnatifid blades with greatly reduced proximal pinnae, and veins meeting margin above the sinuses. x = 34.
Discussion
Thelypteris quelpaertensis, T. limbosperma (Allioni) H. P. Fuchs from Europe, and T. elwesii (Baker) Ching from Asia constitute the genus Oreopteris Holub (R. E. Holttum 1981).
Selected References
None.