Aspidium wallichii Hooker, Exot. Fl. 1: t. 5. 1823; Neuronia asplenioides D. Don, nom. illeg. superfl.

Plants epilithic or epiphytic; rhizome long creeping, freely branching, branches often opposite, 3-4 mm in diam., white waxy under scales; roots restricted to ventral side; scales 3-4 × ca. 1 mm, dark brown to blackish at attachment, contracted into a brown, often recurved acumen, margin ciliate, apex long and narrow. Fronds scattered or in small tufts; phyllopodia 1-2 mm, hardly emerging from rhizome scales; stipe dark brown, 1.5-3(-8) cm; lamina greenish brown when dry, lanceolate, 20-40 × 2-5 cm, herbaceous, both surfaces hairy, more densely so abaxially and on veins, base cuneate to rounded, margin not undulate and densely ciliate, apex apiculate-caudate; costa raised on both sides, abaxially with small, brown, lanceolate scales, adaxially narrowly grooved; veins simple or forked at base. Sori very close to costa; indusia red-brown, orbicular-reniform, glabrous or hairy on surface, margin, or both margin and surface.

Forests; (800-)1700-2700 m. Guangxi, Sichuan, Taiwan, Xizang, Yunnan [Bhutan, N India, N Myanmar, Nepal, Thailand, Vietnam].