Japan Flora: Fronds ever­ green, small; rhizomes creeping, 1-1.5 mm. across, with sparse, dark brown, linear-lanceolate scales about 1 mm. long; stipes 1-8 cm. long, dark purple-brown，few-scaled at base, not or scarcely lustrous, sulcate on upper side; blades lanceolate, 3-10 cm. long, 1.5-2 cm. wide, acute, glabrous, pinnate, the rachis pale green, sulcate on upper side, rounded on back; pinnae 7-12 pairs, the lower ones spreading, the upper ones ascend­ing, broadly subovate or broadly subelliptic, 6-12 mm. long, 3-6 mm. wide, rounded to obtuse，broadly cuneate or rarely subtruncate at base on anterior side, nearly truncate (crenate­toothed in the sterile pinnae) on anterior margin, the posterior margin entire, straight in lower half, incurved on upper half; sori on the anterior margin of pinnae，straight, usually contin­uous; indusia nearly entire, reaching the edge of the pinnae.  Wet shaded rocks along streams in mountains.

Honshu (Hachijo Isl. and Kii Prov.)，Kyushu; rare. Ryukyus, For­mosa, Korea (Quelpaert Isl.).