形態特徵

• Main stems long creeping, inchuding the leaves 6-8 cm wide, bearing many short leafy branches (2-3 cm long), rooting at intervals.
• Lateral leaves oblong, unequal-sided, pointing outwards, ciliate, acute at apex, contiguous or slightly overlapping at base; median leaves ovate, nearly equal-sided, pointing towards apex, ciliate, acuminate-aristate at apex, the base cordate; axillary leaves ovate, ciliate, acute at apex, not auricled.
• Strobili appressed; sporophylls slightly dimorphic, those of the upper side ovate-acuminate, ciliate, pointing outwards; those of the lowerside broader and strongly keeled, pointing upwards.

分布

• 台灣 : Growing on forest floors of southern Taiwan.
• 世界 : Indo-China, Borin Island and the Philippines.

引證標本

PINGTUNG: Nanjenshan, Kao 7370. TAITUNG: Fengkang to Tawu, Simozawa s. n. 1938; Is. Lanyu, Huang 5414.

參考文獻

• TSAI, JINN-LAI and SHIEH, WANG-CHUENG, Flora of Taiwan, second edition 1: 46. 1994.  (Fl. Taiwan 2nd edit.)