Japan Flora: Rhizomes long-creeping, slender, about 1 mm. across, rather densely scaly, the scales appressed, lanceolate, 2.5-3 mm. long, acuminate, dark brown, slightly paler toward the margin, rounded to obscurely lobed at base; fronds evergreen, remote, 3-7 cm. long, 2-5 mm. wide, gla­brous; stipes 2-7 mm. long; blades coriaceous, linear to linear- spathulate, 2-5 mm. wide, mostly broadest below the rounded or very obtuse apex, the margins very slightly recurved, en­tire, deep green above, paler beneath; costa slender, the veins invisible; sori few, on upper portion of the blade，median, round. Mossy rocks and tree-trunks in mountains.

Hok­kaido, Honshu, Shikoku, Kyushu; rather common. Korea.