形態特徵

• Rhizomes long-creeping.
• Stipes wingless or only winged at summit; fronds very variable in shape and size, up to 25 cm long, tripinnatifid; rachis winged to the base, hairless, the wing entire; pinnae usually close but not overlapping, the ultimate segments entire, about 1 m wide, rounded tips; laminar cell walls thin, straight.
• Sori either with hollow conical base sunk in the apex of a segment and broadly rounded lips about as wide as the segment, or more rarely with a narrowly winged basal part from which the ovate lips widen, sometimes abruptly; indusia rounded or ovate, entire; receptacles columnar.

分布

• 台灣 : Epiphytic on mossy tree trunks or rocks in dense mountain forests.
• 世界 : tropical and subtropical regions throughout the world, often extending to the warm and temperate regions.

引證標本

TAIPEI: Chihsinshan, Hsu 9279. ILAN: Chiliting, Kuoh 3081. HSINCHU: Tapachienshan, Kuo 1759. TAOYUAN: Tamanzan, Suzuki 18206; Takuanshan, Tsai 11621*. MIAOLI: Nanchuang, Chuang 2724. TAICHUNG: Tahsuehshan, Shieh 940. NANTOU: Chitou, Chuang 4050; Yunhai, Shieh & Chen 362. CHIAYI: Mt. Alishan, DeVol 3348; Fenchifu, Shieh & Chen 207. KAOHSIUNG: Laonung, Shieh 1774; Shanping, Kuo 1958. PINGTUNG: Shuitiliao, Hsu & Kuoh 13250. TAITUNG: Chihpen, Shieh 1453; Ramaramani, Kao 6846. HUALIEN: Lintien, Feung 2; Kueilin, Shieh & Chen 432.

參考文獻

• TSAI, JINN-LAI and SHIEH, WANG-CHUENG, Flora of Taiwan, second edition 1: 113. 1994.  (Fl. Taiwan 2nd edit.)