Japan Flora: Fronds slender, evergreen, sparsely brownish scurfy beneath while young; rhizomes short, ascending, covered with the persistent bases of old stipes; sdpes brown, lustrous, 6-20 cm. long, about 2 mm. across; blades herbaceous-membranous, linear-lanceolate, 20-50 cm. long, 2-4(-5) cm. wide, simply pinnate, contracted at base, gradually long-attenuate and gemmate at the tip on the naked extension of the rachis; pinnae many, horizontally spreading, broadly lanceolate, 1-2.5 cm. long, 3-7 mm. wide, obtuse, obliquely cuneate and auriculate at base，obtusely toothed, ses­sile, the lower pinnae smaller and deflexed, the upper ones gradually reduced; veins pinnate, short, oblique, veinlets sim­ple; sori intramarginal, solitary on the teeth, sometimes slighdy incurved on margin; indush absent.  Shaded rocky places in woods in mountains; Honshu (Kanto Distr. and westw.), Shikoku, Kyushu; rather rare. Formosa and China.