纤小单叶假脉蕨 xian xiao dan ye jia mai jue

Hymenophyllum parvifolium Baker, J. Linn. Soc., Bot. 9: 340. 1866; Microgonium parvifolium (Baker) Tagawa & K. Iwatsuki; Trichomanes parvifolium (Baker) Copeland.

Rhizome ca. 0.2 mm in diam., densely covered with brownish hairs. Stipe less than 3 mm, with caducous hairs like those on rhizome, winged only at apex. Lamina cuneate or oval, small, 0.5-2.5 cm, less than 0.5 cm wide, with a simple distinct vein, margin wavy, apex rounded or obtuse. Sori solitary, terminal on ultimate segment; involucre obconic or tubular, included, mouth dilated, entire at margin.

On moss-covered rocks in forests. Guangxi, Yunnan [NE India, Myanmar, Nepal, Thailand].