形態特徵

• Stipes 7-11 cm long, stramineous, basal scales ovate and linear-subulate, stipe scales pale-colored, soft lax hair-like, intermixed with large ovate membraneous ones, rachis scales narrowly lanceolate and subulate.
• Lamina deeply bipinnatifid to nearly bipinnate, 20-30 cm long, 3-3.5 cm broad, linear-lanceolate, acute at apex and gradually narrowed towards base, subcoriaceous; pinna lanceolate, 1.4-1.8 cm long, 6-7 mm broad, without prominent auricle, uniformly serrate, serration with long soft hair-like point; small scales on undersurface of pinna narrowly lanceolate, remotely serrate on margin.
• Sori dorsal on veinlets; indusia small, membraneous, orbicular-reniform, fimbriate on margin.

分布

• 台灣 : in alpine region, very rare.
• 世界 : Nepal, Bhutan, India and China.

引證標本

ILAN: Nanhutashan, Hsu 6044; Fukuyama 4009; Nanhutungfeng, Wang et al. 3701. TAICHUNG: Hsuehshan, Wang et al. 4444.

參考文獻

• SHIEH,WANG-CHUENG, DEVOL CHARLES E. and KUO, CHEN-MENG, Flora of Taiwan, second edition 1: 347. 1994.  (Fl. Taiwan 2nd edit.)