形態特徵

• Caudex stout, erect, covered with old stipe bases.
• Sterile fronds glaucous beneath, 25 to 85 cm tall 7, to 25 cm wide; stipes 5 to 30 cm long, much dilated at base, bearing one or 2 pairs of aerophores on the basal part of stipe and a few scattered aerophores further upwards; c. s. of stipe triangular at base, upper stipe tetragonal; lamina pinnate, the apex with a distinct terminal pinna similar to lateral ones; lateral pinnae, straight, widely divergent, acuminate, 7 to 12 cm long 0.8 to 1.3 cm wide, the lower pairs petiolate, the upper pairs sessile; margins of pinnae sharply serrate from base to apex.
• Fertile fronds 40 to 120 cm tall; stipes 20 to 60 cm long, fertile pinnae straight or somewhat falcate, 3.5 to 9 cm long, the upper pairs adnate, most pinnae petiolate.

分布

• 世界 : the Philippines.

引證標本

TAIPEI:Kabosan, Suzuki 12810. ILAN: Nanhutashan, Kao 532; Taipingshan, Kao 4751. MIAOLI: Hsishuishan, Mori 1497. TAICHUNG:Pahsienshan, Chuang 2693; Sinshan, Huang 1322. NANTOU: Luantashan, Kawakami & Mori 1498. CHIAYI:Mt. Alishan, DeVol 3394. KAOHSIUNG:Shihshan, Kuo 761. PINGTUNG:Dawushan, Suzuki 6910. TAITUNG:Tungpu, Hsu 1616. HUALIEN: Mukuashan, Kao 4131; Chingshuishan, Nakamura 3679.

參考文獻

• SHIEH, WANG-CHUENG, DEVOL, CHARLES E. and LU, CHIN-YI, Flora of Taiwan, second edition 1: 135. 1994.  (Fl. Taiwan 2nd edit.)