形態特徵

• Rhizomes erect, stout, densely scaly at apex.
• Fronds about 1 m long, tufted; stipes 40-60 cm long, reddish brown, scaly at base, narrowly winged upward from about the middle; laminae broadly ovate, about 50 cm long, 30 cm wide, pinnate, with 2-3 pairs of lateral pinnae and a largest terminal pinna, glabrous above, sparsely puberulent on the costa and veins beneath; rachises glabrous, narrowly winged, with densely scaly root-bearing buds or gemmae in the pinnae-axils; lateral pinnae opposite or alternate, oblong-lanceolate, entire, abruptly caudate, slightly attenuate at base and decurrent on the rachis; rachises and costae prominently raised, the rachises with a shallow groove; veins copiously anastomosing.
• Sori small, round, multiseriate between the principal lateral veins, terminal on free veinlets; indusia round-reniform, entire.

分布

• 台灣 : Growing on the forest floors, apparently rare.
• 世界 : S. China, India, Vietnam, Burma, Thailand, the Ryukyus and Malay Peninsula.

引證標本

NANTOU: Meiyuan, Simozawa 269; Lienhuachih, Chen 1189, Tsai 9768. KAOHSIUNG: Shanping, Shieh & Tsai 6615.

參考文獻

• TSAI, JINN-LAI and SHIEH, WANG-CHUENG, Flora of Taiwan, second edition 1: 299. 1994.  (Fl. Taiwan 2nd edit.)