形態特徵

• Stipes 10-25 cm long, almost as long as lamina, large basal scales lanceolate to broadly lanceolate, dark brown to blackish, with dark brown cilia near apical margin; rachis scales filiform to linear, blackish brown.
• Lamina bipinnate, lanceolate, 16-34 cm long, 5-14 cm broad, apex acuminate, subcoriaceous; pinna linear-lanceolate, 3-9 cm long, 7-18 mm broad, apex long acuminate, lower edge of base truncate, upper prominently auriculate; small scales on undersurface of pinna linear, with gland-like cell at tip.
• Sori terminal on veinlets; indusia orbicular with entire margin, membraneous, persistent.

分布

• 台灣 : at medium altitude, rather rare.
• 世界 : China, Korea and Japan.

引證標本

HSINCHU: Kwanwu, Shieh & Tsai 2198. CHIAYI: Mt. Alishan, Hayata & Ito s. n. 1914; Tongpu, Liu 153. KAOHSIUNG: Nanmenshan, Suzuki 20938.

參考文獻

• SHIEH,WANG-CHUENG, DEVOL CHARLES E. and KUO, CHEN-MENG, Flora of Taiwan, second edition 1: 303. 1994.  (Fl. Taiwan 2nd edit.)