膜边鳞毛蕨 mo bian lin mao jue

Nephrodium clarkei Baker in Hooker & Baker, Syn. Fil., ed. 2, 497. 1874; Ctenitis clarkei (Baker) Ching; Dryopsis clarkei (Baker) Holttum & P. J. Edwards; Lastrea filix-mas (Linnaeus) C. Presl subvar. clarkei (Baker) Beddome; L. filix-mas var. clarkei (Baker) Beddome.

Rhizomes erect. Stipe dark brown, 3-18 cm; stipe scales blackish brown, lanceolate, 5-12 × 0.5-1 mm. Lamina 2-pinnatifid to 2-pinnate, lanceolate, 25-90 × 7-17 cm; free lateral pinnae 20-40 pairs, ± spaced (i.e., not continuous); basal pinnae distinctly shortened, 1-4 × 0.5-1.5 cm, reflexed; middle pinnae 3.5-8.5 × 1-2 cm; pinnules entire or nearly so, hyaline margins present, obtuse or subtruncate and entire at apex. Rachises and costae abaxially covered with scales, scales on costae not very abundant, lanceolate, costules without scales. Veins of ultimate pinnules pinnate and veinlets once forked, without glands on abaxial surface. Sori on whole length of pinnules, separate, medial to submarginal. Indusia distinct, persistent or partly fugacious, entire or nearly so. Perispore echinate.

Mossy forests; 1300-3800 m. Guangxi, Guizhou, Sichuan, Xizang, Yunnan [Bhutan, NE India (Sikkim), N Myanmar, Nepal].