Japan Flora: Evergreen, glabrous; rhizomes creeping, 3-4 mm. across, densely scaly, the scales black-brown, ascending, linear-lanceolate, 5-7 mm. long, about 0.5 mm. wide, sparsely toothed, clathrate, the filiform tip about 1/3-1/2 as long as the body; fronds thinly coriaceous, pendulous, linear, flat, 50-80 cm. long, 6-12 mm. wide, obtuse, gradually narrowed at base, glabrous except for a few scales at base of stipe; costa not distinct; sori continuous in marginal grooves. Tree trunks.

Shikoku, Kyushu (Yakushima and Tanegashima); rare. Ryukyus, Formosa, Indochina, Poly­nesia, Malaysia, and Mascarene Isis.