Japan Flora: Rhizomes long-creeping, rather stout, densely scaly, 斗-5 mm. across, the scales brown, membranous, linear-lanceolate, 6-7 mm. long, about 1 mm. wide near base, long-acuminate, ciliate, scarious-margined; fronds deciduous, glabrous; stipes 8-13 cm. long, slender, jointed at base, smooth, light-green, sometimes reddish, with 2 lines on upper surface; blades broadly ovate-deltoid, 15-20 cm. long, 10-15 cm. wide, short-acuminate, 3- or 4-pinnatiparted, the rachis with pale brown peltate scales 2-3 mm. long while young; pinnae ovate-oblong, subacute, short-petiolulate, the lowest ones largest,- ovate-deltoid, 7-12 cm. long, dilated on posterior side; pinnules oblong to  oblanceolate, 1-2.5 mm. wide, subobtuse, entire or 2- or 3-lobulate at the tip; veins usu­ally once, sometimes twice forked, or simple; indusia obovate, hyaline, about 1.5 mm. long, solitary on the pinnules. Aug.-Oct. Rocks and tree trunks in mountains.

Hokkaido (Oshima Prov.), Honshu, Shikoku, Kyushu. Korea, For­mosa, and China.