形態特徵

• Rhizome erect, short.
• Stipes tufted, short, triangular in c. s., dark purplish, with a narrow brown wing on each of their 3 sides; scales lanceolate, clathrate, black with brown margins; fronds narrowly linear-lanceolate, pinnate, 10-25 cm long, 1-2 cm wide, usually bearing a subterminal bud; pinnae oval or oblong, opposite, subopposite or alternate, margins serrate, base unequal and cuneate; lower pinnae shortened, flabelliform; rachis winged at stipe, i. e. with a continuous brown somewhat erose wing on its abaxial side as well as on its two margins.
• Sori linear, borne on either side of costa and parallel to the oblique veins.

分布

• 台灣 : Growing in crevices of rocks.
• 世界 : Japan and China.

引證標本

ILAN: Ssuyuan, Chuang & Kao 2485; Nanhutashan, Kuo 475. TAOYUAN: Lalashan, Kuo 4334. HSINCHU: Kuanwu, Kuo 3484; Tapachienshan, Kuoh 3218. TAICHUNG: Pahsienshan, Simozawa 164. NANTOU: Nengkaoshan, Fukuyama 4762; Hoshe, Suzuki 224. HUALIEN: Panpien, Nakamura 4945; Chungyangchienshan, Suzuki 16143.

參考文獻

• SHIEH, WANG-CHUENG, DEVOL, CHARLES E. and KUO, CHEN-MENG, Flora of Taiwan, second edition 1: 463. 1994.  (Fl. Taiwan 2nd edit.)