Japan Flora: Rhi­zomes short-creeping; fronds dull with spreading hairs; stipes 15-30 cm. long, slender, straw-colored, dark brown and thinly scaly toward base; scales dark brown, linear-lanceolate, 4-6 mm. long, long-acuminate, loosely ciliate; blades thinly chartaceous, narrowly deltoid, simply pinnaticleft to lobulate, 15-30 cm. long, 10-18 cm. wide, acuminate to acute, with a pair of distinct sessile pinnae at base, these narrowly oblong- ovate, 1.5-2.5 cm. wide, obtuse to subacute, snbentire, some­times slightly wider than the others, rounded at base on the posterior side; rachis, costas, veins and veinlets prominent on both sides; sporangia on the veinlets. Woods.

Honshu (s. Kinki Distr.), Shikoku, Kyushu.Ryukyus, Formosa.