Japan Flora: Stems tufted, filiform, pendulous, about 1.5 mm. across including the leaves, slightly angular, sparsely forked, 20-40 cm, long, leafy; leaves scalelike, closely appressed and adnate to the stem in lower two-thirds, the free portion triangular-ovate to ovate, about 1.5 mm. long, very acute, about as long as the sporangia, convex and scarcely keeled on back; fertile leaves simulating the scale leaves but more dilated and barely acute to short- mucronate; sporangia reniform-orbicular, as long as to slightly longer than the leaves.

Honshu (Sagami, Izu, and Kii Prov.), Kyushu (s. distr.); rare. Korea (Quelpaert Isl.), Ryukyus (var.),