形態特徵

• Rhizome short; scales subulate, black, 5-6 mm long, clathrate, denticulate, with spreading arms.
• Fronds tufted, elliptic, widest at or above middle, 15-25 mm wide, 15-30 cm long, winged to base, costa flat and distinct in basal part of frond.
• Sporangia following the veins, borne in deep grooves, edges of grooves somewhat raised; paraphyses linear, yellow-brown.

分布

• 台灣 : Only known from Is. Lanyu (Botel Tobago ). Growing on shaded mossy rocks.
• 世界 : the Philippines.

引證標本

TAITUNG: Is. Lanyu, Huang & Kao 6277, Kuoh 4983.

參考文獻

• SHIEH, WANG-CHUENG, CHIOU, WEN-LIANG and DEVOL, CHARLES E. 1994. Flora of Taiwan, second edition 1: 257. (Fl. Taiwan 2nd edit.)