形態特徵

• Rhizomes filiform, glabrescent. Stipes slender 1-3 cm long, not winged, sparsely hairy.
• fronds usually to about 3 cm, exceptionally to 5 cm or more long; rachis slender, winged only near apex; pinnae simple or forked, or sometimes with 3 lobes of which the basal acroscopic one may be forked again; lobes linear, about 2 mm wide, the margins toothed.
• Sori near the apex of lobes only, rather short, with hollow conical base and rather short broadly rounded toothed lips which are sometimes reflexed; receptacles cylindrical, extruded, protruding much in old sori.

分布

• 台灣 : Growing on moist rocks or tree trunks of the forests.
• 世界 : the Philippines, Malaya, New Guinea, Borneo, Sumatra and Java.

引證標本

TAIPEI: Wenshan, Suzuki 19380. PINGTUNG: Mutan, Simozawa s. n. 1938. TAITUNG: Is. Lanyu, Hosokawa 9837.

參考文獻

• TSAI, JINN-LAI and SHIEH, WANG-CHUENG, Flora of Taiwan, second edition 1: 115. 1994.  (Fl. Taiwan 2nd edit.)