形態特徵

• Rhizome short-creeping, clothed with ferrugineous, minute scales.
• Stipes castaneous, glabrous, quadrangular in section, sulcate above; sterile frond much shorter than the fertile, with short stipe; lamina linear, simply pinnate, pinnae fan-shaped, irregularly acute-dentate on margin.
• Fertile frond much longer than the sterile; lamina polymorphic, simply pinnate or generally the lower several pairs of pinnae elongate and pinnate, therefore lamina partly bipinnate, membraneous; pinnules fan-shaped, irregularly acutely denticulate on outer margin, glabrous on both surfaces.
• Sori intramarginal, continuous along the outer edge or interrupted by a few incisures; indusia denticulate or undulate on margin, distinctly remote from the edge of pinnae or pinnules.

分布

• 世界 : S. China, the Ryukyus and Malaysia.

引證標本

TAIPEI: Peitou, Faurie 619; Wulai, Tagawa 264. HSINCHU: Kwanhsi, Nagasawa s. n. 1904. TAICHUNG: Taian, Shieh s. n. 1919. NANTOU: Kuantaochi, Chang 78; Lienhuachi, Shieh 229. PINGTUNG: Mutan, Tagawa 792.

參考文獻

• SHIEH, WANG-CHUENG. 1994. Flora of Taiwan, second edition 1: 177. (Fl. Taiwan 2nd edit.)