形態特徵

• Stipes 5-25 cm long, basal scales ovate to lanceolate, brown to dark brown, thin.
• Lamina pinnate, linear, 13-40 cm long, 2-7 cm broad, coriaceous, rachis sparsely clothed with small cuspidate scales which intermixed with a number of larger ovate, light brown ones; pinna falcate, 0.8-3.6 cm long, 4-13 mm broad, acute or short acuminate at apex, distinctly auriculate at base, margin white-callose and irregularly slightly serrate with pale colored teeth; small scales on undersurface of pinna linear-deltoid, with entire margin, rather minute.
• Sori dorsal on veinlets; indusia membraneous, large, margin undulate, persistent.

分布

• 台灣 : in medium altitude.
• 世界 : Nepal, Bhutan, India, West China and the Philippines.

引證標本

ILAN: Nanhutashan, Wang 1691. HSINCHU: Kuanwu, Shieh & Tsai 2130. TAICHUNG: Pashienshan, Huang 1346. NANTOU: Hohuanshan, Wang 1610. CHIAYI: Alishan, Sasaki s. n. 1918; Yushan, Kao 5604. KAOHSIUNG: Shihshan, Kuo 774. PINGTUNG: Peitawushan, Masamune 1520. TAITUNG: Shiangyangshan, Wang 2091. HUALIEN: Noko-Onoue, Sasaki s. n. 1929.

參考文獻

• SHIEH,WANG-CHUENG, DEVOL CHARLES E. and KUO, CHEN-MENG, Flora of Taiwan, second edition 1: 345. 1994.  (Fl. Taiwan 2nd edit.)