形態特徵

• Rhizome long-creeping, 2 mm thick, scales dark brown, lanceolate, margins minutely denticulate.
• Fronds lanceolate, about 2 cm apart, 20-45 cm long, 2-4 cm wide; lamina acuminate towards apex, widest at or near middle, decurrent towards bases; margins undulate; wingless part of stipe short; texture herbaceous; main lateral veins distinct with 2-3 rows of areolae between main veins, included veinlets present.
• Sori long, linear, usually continuous, sometimes interrupted, one between each pair of lateral veins.

分布

• 台灣 : On moss covered rocks, often along streams.
• 世界 : Vietnam, South China and the Ryukyus.

引證標本

TAIPEI: Yinghotung, DeVol 9070. ILAN: Is. Kuishan, Kuo 1600. HSINCHU: Chutong, Kuo 1706. MIAOLI: Nanchuang, Kuo 2376. TAICHUNG: Tungshih, Simozawa 630. NANTOU: Sun Moon Lake, Huang & DeVol 1244. CHIAYI: Fengchihu, Kuo 1667. TAINAN: Kuantzuling, Morimoto 728. KAOHSIUNG: Sanping, Kuo 1887. PINGTUNG: Kenting, Hsu & Kuoh 8133. TAITUNG: Tawu, Chang, Chao & Kao 3425; Is. Lanyu, Huang & Kao 6370. HUALIEN: Lintienshan, Chao & Feung 41.

參考文獻

• SHIEH, WANG-CHUENG, DEVOL, CHARLES E. and KUO, CHEN-MENG, Flora of Taiwan, second edition 1: 477. 1994.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)