形態特徵

• Rhizomes short-creeping, ascending or suberect, rather thick, scaly.
• Fronds tufted; stipes castaneous, shining, 10-35 cm long, scaly at base, more or less pilose; laminae elliptic or oblong-lanceolate, 25-60 cm long, 10-25 cm wide, long-acuminate; pinnae rather remote from each other, sessile, apparently strictly opposite, linear-lanceolate, 7-15 cm long, 2-3 cm wide, deeply pinnatifid, the lobed adnate, oblong or lanceolate, 5-7 mm wide, crenate-dentate, pilose on upper side especially on the costa and costules, hirsute beneath; lateral veins in the lobes more forked.
• Sori median on the veinlets or nearer the margin, without indusia.

分布

• 台灣 : Growing in open places or forest margins at low mountains between 200-1,000 m.
• 世界 : the Ryukyus.

引證標本

TAIPEI: Wulai, Chuang 90. ILAN: Tachoushuichi, Shieh & Tsai 2707; Tuling, Shieh & Tsai 4480. TAOYUAN: Peichatienshan, Kuo 2677*; Paling, Kuoh 2415. TAICHUNG: Pahsienshan, Simozawa 345; Kukuan, Tsai 1680. NANTOU: Kuantaochi, Shieh & Tsai 2254; Hoshe, Tsai 1987. CHIAYI: Mt. Alishan, Shieh & Tsai 1384. KAOHSIUNG: Shanping, Kao 7463, Shieh & Tsai 2931; Kueiku, Shieh & Tsai 921. PINGTUNG: Shuangliu, Tsai 1544; Chingshuiying, Shieh & Tsai 6904. TAITUNG: Tipongoe, Suzuki s. n. 1932; Kuanshan, Shieh & Tsai 1879. HUALIEN: Lanshan, Shieh & tsai 1616; Hsiukuluan, Shieh & Tsai 1699.

參考文獻

• TSAI, JINN-LAI and SHIEH, WANG-CHUENG. 1994. Flora of Taiwan, second edition 1: 401. (Fl. Taiwan 2nd edit.)