形態特徵

• Rhizomes creeping or suberect, covered with narrow brown scales.
• Stipes tufted, densely covered with long yellowish hairs and scattered lanceolate scales; stipes of sterile fronds to about 5 cm long, of the fertile to 15 cm; sterile fronds with an oblong terminal pinna, 5-10 cm long, 2-4 cm wide, the margins with large crenate lobes, and with one pair of sessile lateral pinnae up to 1.5 cm long, more or less rounded but widened at the base on the basiscopic side, the upper surface glabrous, the lower with ctenitis hairs along veins and margins; fertile fronds with much constricted blades, 1-3 mm wide, the lobes linear with undulate or somewhat lobed margins.
• Sori acrostichoid, exindusiate.

分布

• 台灣 : Growing in crevices of rocks and on clay banks.
• 世界 : South China, Vietnam, India, Ceylon, Indo-China, Malaysia and Polynesia.

引證標本

TAIPEI: Kueishan, Chuang & Kao 3104; Wulai, Sasaki s. n. 1931. TAICHUNG: Tungshih, Simozawa s. n. 1936. NANTOU: Kuantaochi, Kuo 2088*, Tsai 2113. KAOHSIUNG: Shanping, Kuo 1897, Shieh & Tsai 2921. PINGTUNG: Chingshuiyin, Kao 6875. HUALIEN: Hungyeh, Koyama & Kao 14247.

參考文獻

• TSAI, JINN-LAI and SHIEH, WANG-CHUENG, Flora of Taiwan, second edition 1: 294. 1994.  (Fl. Taiwan 2nd edit.)