Stems short-creeping, 3--7 mm diam. Leaves usually many, arching to pendent. Petiole essentially absent to ca. 3--5(--8) cm. Blade yellowish to dark green, elongate-linear, ± falcate, 30--60 × 0.5--1.5 cm, papery; base and apex long-attenuate; margins often slightly revolute. Veins obscure, primary veins inconspicuous, slightly to strongly curved, areoles in 1--4 series between costa and margin, with free included veinlets. Sori in 1--2 rows on each side of costa.
Forming clumps on tree trunks or in crevices of rocks, in open or shady places from low to montane forests, at elevations of 100-2,500 metres, occasionally to 3,600 metres.
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