形態特徵

• Rhizome 6-8 mm thick, sparsely covered with clathrate, peltate, dark brown, ovate scales, with broad bases.
• Stipes short or absent, 1-2 cm apart; fronds simple, widest in middle, winged almost to base, margin entire; venation usually visible but not prominent, areolae with included veinlets; midrib raised on both sides; lamina 30-60 cm long, 3-6 cm wide, bearing sori on the upper half.
• Sori small, abundant, irregularly scattered from margin to costa.

分布

• 世界 : Africa, India, Vietnam, South China and the Ilands of the Pacific.

引證標本

NANTOU: Chingshuikou, DeVol 7178. CHIAYI: Tulishan, Tsann 12. TAINAN: Kuangtzuling, Kao 6311. KAOHSIUNG: Shanping, Kuoh 4027. PINGTUNG: Kentting, Kuo 35. TAITUNG: Is. Lutao, Huang 6928; Is. Lanyu, Hsu 9037. HUALIEN: Taroko, Suzuki 9118.

參考文獻

• SHIEH, WANG-CHUENG, DEVOL, CHARLES E. and KUO, CHEN-MENG. 1994. Flora of Taiwan, second edition 1: 502. (Fl. Taiwan 2nd edit.)