形態特徵

• Rhizome short; scales subulate, 2-3 mm long, 0.3 mm wide, nearly black, remotely denticulate.
• Fronds tufted, 20-50 cm long, 5-8 mm wide; midrib prominently raised on underside; margins usually inrolled; apex long attenuate, decurrent at base to short stipe, texture coriaceous.
• Sori in a continuous submarginal groove, inner edge of soral groove usually present, but often not prominent; paraphyses sometimes simple usually branched, ending in obconical cells.

分布

• 世界 : India, Nepal, China, Vietnam, the Ryukyus and Japan.

引證標本

TAIPEI: Chihsingshan, Kuo 3412. ILAN: Chilanshan, Chao s. n. 1966. HSINCHU: Tapachienshan, Huang 5954. MIAOLI: Nanchuang, Hsu 12584. TAICHUNG: Pahsienshan, Kuo 3192; Anmashan, Shieh & Tsai 3351*. NANTOU: Chingshuikou, Huang & Kao 890. CHIAYI: Mt. Alishan, Kao & Feung 184. KAOHSIUNG: Chishan, Suzuki 20873. PINGTUNG: Compartment 25, Huang & Kao 7449. TAITUNG: Taitungshan, Yamamoto 93. HUALIEN: Lintienshan, Chao & Feung 27.

參考文獻

• SHIEH, WANG-CHUENG, CHIOU, WEN-LIANG and DEVOL, CHARLES E., Flora of Taiwan, second edition 1: 260. 2004.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)