形態特徵

• Rhizomes including scales about 3 cm thick, the scales thin, large, reddish-brown, narrowly lanceolate or linear, attached by their bases.
• Stipes stramineous, approximate, about 30 cm long, the swollen base covered wth reddish-brown scales; fronds deltoid-ovate, 4-pinnatifid, densely setose in rachis, rachillae and both surfaces; venation free.
• Sori round, dorsal on the veins; indusia reniform, pubescent, attached by sinus.

分布

• 台灣 : Growing in crevices of limestone rocks and brick walls.
• 世界 : China, Himalayas, Burma, N. India, Japan, the Philippines, Malaysia, Arabia, and Africa.

引證標本

NANTOU: Tongpu, Suzuki 13240; Wuchieh, Shieh & Tsai 3127. CHIAYI: Mt. Alishan, Kao 5571. KAOHSIUNG: Shangping, Chuang & Kao 3197, Kuo 1928*. PINGTUNG: Paiwan, Suzuki 6785. TAITUNG: Aderu, Suzuki 11181. HUALIEN: Taroko, Suzuki 10455; Longchien, Shieh & Tsai 2690.

參考文獻

• TSAI, JINN-LAI and SHIEH, WANG-CHUENG, Flora of Taiwan, second edition 1: 290. 1994.  (Fl. Taiwan 2nd edit.)