形態特徵

• Stipes 15-60 cm long, densely scaly, large basal scales membraneous, lanceolate, with dark brown serration near apical margin and black thick line in central part, small scales on stipe and rachis lanceolate to filiform.
• Lamina bipinnate, ovate-lanceolate to lanceolate, 30-60 cm long, 15-30 cm broad, apex acuminate, coriaceous; pinna linear-lanceolate, 7-18 cm long, 18-35 mm broad, apex long acuminate; pinnules 13-24 mm long, 4-8 mm broad; small scales on undersurface of pinna deltoid, long caudate at apex, coarsely serrate on basal margin.
• Sori terminal on veinlets, medial to costa; indusia small, margin denticulate to entire, persistent.

分布

• 台灣 : in low to medium altitude.
• 世界 : Ceylon, Assam, Nepal, Burma, Thailand, Vietnam, Java, and SW. China.

引證標本

MIAOLI: Shisuishan, Kawakami & Mori s. n. 1908. TAICHUNG: Lishan, Kuo 7543. NANTOU: Tongpu, Wang 1997. CHIAYI: Fenchihu, Kuo 1681. KAOHSIUNG: Sanping, Kuo 1955. PINGTUNG: Peitawushan, Wang 2193.

參考文獻

• SHIEH,WANG-CHUENG, DEVOL CHARLES E. and KUO, CHEN-MENG. 1994. Flora of Taiwan, second edition 1: 338. (Fl. Taiwan 2nd edit.)