Japan Flora: Evergreen; rhizomes long-creeping, filiform, 0.7-1 mm. across, fronds remote, the scales rather sparse, dark brown, spreading, linear-filiform, 1-1.5 mm. long; blades coriaceous, orbicular to elliptic or broadly ovate to obovate, 1-2 cm. long, 6-15 mm. wide, rounded to very obtuse, rounded to broadly cuneate at base, glabrous, entire, the stipes 2-8 mm. long; costa slighdy raised beneath in lower half, the veins and veinlets invisible; fertile blades broadly linear to narrowly oblanceolate, 1-3 cm. long, 3-4 mm. wide, obtuse to rounded, gradually narrowed at base, the stipes 1-3 cm. long; costa raised beneath and in lower half of upper side; sori elongate along the costas and covering the entire blade be­neath, with numerous minute peltate paraphyses while young. Rocks and tree trunks in lowlands and low mountains.

Honshu, Shikoku, Kyushu; common. Korea, Ryukyus, and Formosa.