鳞蕗蕨 lin lu jue

Mecodium levingei (C. B. Clarke) Copeland.

Plants 4-6 cm tall. Rhizome brown, subglabrous, with sparse hairy rootlets. Stipes remote, 1-2 cm apart, brown, filiform, 1.5-2 cm, subglabrous, or with lanceolate multicellular scales at apex, wingless. Rachis brown, narrowly winged throughout, densely covered with lanceolate multicellular scales. Lamina once pinnate to bipinnatifid, green-brown, flat, linear to narrowly lanceolate, 2-3 × 0.5-1 cm, membranous; pinnae 6-10 pairs, 1-2 mm apart, alternate, sessile, ovate, 3-4 × 2-3 mm, base decurrent, apex obtuse; ultimate segments simple or slightly forked, less than 1 mm apart, linear-oblong, 1-2.5 × ca. 0.5 mm, with a single veinlet, margin with sparse teeth, apex obtuse. Veins dichotomous, slightly raised on each surface, brown, with dense lanceolate multicellular scales. Sori on upper parts of frond, apical on long acroscopic segments; involucres subcircular or oval, small, deeply cleft nearly to base, glabrous, entire or slightly toothed at apex.

On rocks near rivers, on tree trunks in forests; 2000-2600 m. Guizhou (Daozhen), Sichuan, Xizang, NW Yunnan [Bhutan, N India, Nepal].