Japan Flora: Rhizomes short-creeping, 3-5 mm. across, the scales rather dense, narrowly lanceolate, about 3 mm. long, acuminate, dark brown; blades thickly herbaceous, simple, narrowly oblanceolate, 15-23 cm. long, 1.5-2 cm. wide, acuminate with a short obtuse entire tip, gradually narrowed at base to the short winged stipe, crenate-toothed on upper half, deep green and glabrous on upper side, paler beneath, with minute appressed lobed scales sometimes with a black­brown short apical tail; costas slightly raised on both sides, whitish and slender on upper side, broader beneath, the scales broadly linear, dark brown, about 3 mm. long, long- veins obliquely spreading, slender, scarcely visible, simple or forked, ending short of the slightly cartilaginous hyaline mar­gin; sori linear, obliquely spreading, straight, parallel, benveen the margin and the costa; indusia 4-8 mm. long, entire.

Kyushu (Yakushima). Formosa, China to India.