形態特徵

• Rhizome short, erect.
• Stipes tufted, slender, green on upper side, brown below, 6-12 cm long, sparsely scaly at base; scales dark brown, lanceolate; fronds ovate, texture very thin, 4-pinnatifid, anadromous, 15-25 cm long, 6-8 cm wide, rachis green; pinnae, pinnules and segments short petiolate; ultimate segments with a single veinlet; segments cuneate at base, acute at apex.
• Sori about 1 mm long, one per segment.

分布

• 世界 : Ceylon, India, Nepal, Vietnam, China.

引證標本

HSINCHU: Chutung, Suzuki 20366; Luchangtashan, Simozawa s. n. 1938. TAICHUNG: Tungshih, Simozawa 128; Pahsienshan, Sasaki s. n. 1928. NANTOU: Wushe, Masamune 2313; Chitou, Kuo 651. CHIAYI: Mt. Alishan, Suzuki 17967; Fenchihu, Kuo 1638.

參考文獻

• SHIEH, WANG-CHUENG, DEVOL, CHARLES E. and KUO, CHEN-MENG. 1994. Flora of Taiwan, second edition 1: 462. (Fl. Taiwan 2nd edit.)