形態特徵

• Rhizome black, stout, creeping, about 5 mm thick; scales black, lanceolate.
• Stipes stout, stramineous, dark at base, deeply grooved, sparsely scaly, 25-40 cm long; lamina pinnate, terminal pinna similar to lateral ones or somewhat larger; lateral pinnae 1-4 pairs, ovate-lanceolate or broadly elliptic, 14-18 cm long, by 4-4.5 cm wide margins entire or subentire.
• Sori medial or reaching nearly from cost to margin.

分布

• 世界 : India, Thailand, Indo-China, Malay Peninsula, S. China, Japan, the Ryukyus.

引證標本

TAIPEI: Kankou, Hsu 2005; Shintien, Chuang 2102; Chihsinshan, DeVol 4471. ILAN: Kueishan, Kuo 319. TAOYUAN: Peichatienshan, Tsai 4316. NANTOU: Sun Moon Lake, DeVol 1201; Lienhuachih, Feung 349. CHIAYI: Mt. Alishan, Kanehira s. n. 1918. PINGTUNG: Nanjenshan, Kuo 1985. TAITUNG: Is. Lanyu, Huang 6213.

參考文獻

• SHIEH, WANG-CHUENG, DEVOL, CHARLES E. and KUO, CHEN-MENG, Flora of Taiwan, second edition 1: 436. 1994.  (Fl. Taiwan 2nd edit.)