Show Lower Taxa
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.
Revision as of 20:22, 5 November 2020 by imported>Volume Importer
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.