形態特徵

• Stipes 5-15 cm long, sparsely scaly, basal scales lanceolate, apex long acuminate, margin nearly entire, dark brown, rachis scales deltoid , lanceolate or linear-lanceolate.
• Lamina pinnate, 25-40 cm long, 2.3-3.2 cm broad, linear, chartaceous; pinna linear-quardrangular, 1-1.8 cm long, 3-6 mm broad, apex acute, base broadly truncate to nearly rectangular, margin serrate, with dense aristate teeth, lower pinna reduced and strongly reflexed; small scales on undersurface of pinna membraneous, deltoid, acuminate at apex.
• Sori terminal on veinlets, generally on upper part of frond; indusia small, margin erose-denticulate, persistent.

分布

• 台灣 : in medium altitude of northern and central part.
• 世界 : W. China.

引證標本

TAIPEI: Seiranzan, Suzuki & Nakamura 18362. ILAN: Nanhutashan, Masamune et al. 3002. HSINCHU: Kwanwu, Shieh & Tsai 2127. TAICHUNG: Anmashan, Liu et al. 192. NANTOU: Shalihsenhsi, Wang 1951. CHIAYI: Alishan, Wang 1872. HUALIEN: Chingsuishan, Nakamura 3688.

參考文獻

• SHIEH,WANG-CHUENG, DEVOL CHARLES E. and KUO, CHEN-MENG, Flora of Taiwan, second edition 1: 340. 1994.  (Fl. Taiwan 2nd edit.)