形態特徵

• Rhizome short, erect.
• Stipes tufted, scaly at base; fronds simple, elliptical, tapering to either end, winged almost to base, 10-40 cm long, 15-25 mm wide; costa raised above and beneath; veins parallel, once forked; margin subentire; without scales on lower surface.
• Sori linear, 10-15 mm long; indusia linear, slightly curved.

分布

• 世界 : Himalayas, South India, Ceylon, China and Japan.

引證標本

TAIPEI: Wulai, Suzuki 7194. TAOYUAN: Tachi, Suzuki 20639. HSINCHU: Tapachienshan, Kuoh 3309. TAICHUNG: Anmashan, Liu et al. s. n. 1957; Tahsuehshan, Kuo 144*. NANTOU: Chitou, Cheng 531; Chingshuikou, Huang & Kao 984; Hoshe, Kao 3907. CHIAYI: Mt. Alishan, Feung & Kao 140; Mt Yushan, Simozawa 365. KAOHSIUNG: Hsinwanlin, Suzuki 20875. PINGTUNG: Tawushan, Huang &Kao 7435. TAITUNG: Chihpeng, Suzuki 10981. HUALIEN: Tarokotashan, Sasaki s. n. 1933.

參考文獻

• SHIEH, WANG-CHUENG, DEVOL, CHARLES E. and KUO, CHEN-MENG, Flora of Taiwan, second edition 1: 454. 1994.  (Fl. Taiwan 2nd edit.)