The World Flora Online

Plants 10-40 cm tall. Rhizome shortly elongated, 1.6-3.1 mm in diam., in cross section with few to many sclerenchyma strands; phyllopodia 0.3-0.7 cm apart, lateral buds alternating with phyllopodia. Scales peltate 3.6-6.2 × 0.5-1.3 mm, base entire to dentate; acumen light brown, dentate. Fronds monomorphic, sessile or indistinctly stipitate; lamina widest above middle, 8-22 × 0.5-1 cm, base gradually narrowed, apex acute to acuminate. Hydathodes distinct, superficial. Indument persistent, dimorphic, dense, brown or lower layer whitish; hairs 0.2-0.8 mm in diam., with acicular rays appressed to a layer with mainly woolly rays. Sori superficial, without central bundle of paraphyses. Sporangia with stalks 0.5-1 × as long as capsule.

Source: [
• 1
]. 

Rhizome creeping, about 2 mm diam., bearing fronds rather closely, densely scaly except in older portion; scales oblong-subulate, long-tailed at apex, up to 4 by 1 mm, dark brown to nearly black in central portion, brown in other part, thin, entire, without marginal hairs. Stipes not distinct with wings decurrent from laminae. Laminae linear, up to 30 cm long, commonly up to 7 mm but rarely up to 10 mm broad, gradually narrowing towards both apex and base; midrib grooved on upper surface, raised beneath, glabrescent; freshy, rather leatherly, veins invisible, upper surface steallate hairy or glabrescent, lower surface covered with two kinds of hairs, the lower grey appressed hairs and the upper pale stellate hairs with short stalks. Sori on the whole lower surface of upper half of fronds, covered with stellate hairs when young.

Source: [
• 6
]. 

On mossy tree-trunks or on rocks usually in mountain forests a high altitudes (600–1600 m), rather rare.

Source: [
• 6
]. 

Thailand, S. China (Kweichow, Kwangsi, Hainan), Laos and N. Vietnam (type).

Source: [
• 6
].