Plants 5-7 cm tall. Rhizomes erect, short, scales black lanceolate. Fronds clustered; stipe castaneous-black, slightly glossy, 2-3 cm, as slender as a hair, glabrous; lamina oblong in outline, 3-5 × 1-1.5 cm, 1-pinnate; costae and stalks same color as stipe; pinnules 3 or 4 pairs, 6-9 mm apart, opposite, obliquely spreading; stalk 1.5-4 mm, 1/3-1/2 as long as pinnules, articulate at end, persistent after pinnules fall; pinnules narrowly ovate or narrowly flabellate, 4-6 × 2.5-4 mm, papery, brownish green, both surfaces glabrous, base cuneate, both sides entire and undulate, upper margins subtruncate, with one sinus at middle; terminal pinnae same shape as and slightly larger than lateral pinnae; veins undivided, 4 forked veinlets arising from base, visible on both surfaces. Sori 1 per pinnule; false indusia brown, reniform or elliptic, leathery, upper margins depressed, persistent.
Home