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Information Leaves monomorphic or weakly subdimorphic, 10--30 cm. Blade 4-pinnate, 3--12 cm, nearly as wide as long, thin to thick. Ultimate segments narrowly lanceolate to deltate, 2--6 mm; midrib obscure or evident abaxially. Sori of mature blades ± discrete to usually subcontinuous, 3--7(--9) per segment; indusia semicircular to usually elongate and connecting several adjacent sori, margins with 6--10 irregular and prominent teeth and/or lobes. 2 n = 120.

Information Plants terrestrial or on rock. Stems ± compact, short-creeping, ascending at tip, branched; scales mostly dark brown, often with very narrow margin of lighter color, lanceolate, margins entire. Leaves monomorphic to somewhat dimorphic, crowded, 8--35 cm. Petiole usually dark reddish brown, with single groove adaxially, glabrous, with single vascular bundle. Blade ovate-triangular, deltate, or pentagonal, 3--4(--5)-pinnate, thick to thin, abaxially glabrous, adaxially lustrous, striate, glabrous; rachis straight. Ultimate segments of blades short-stalked or with base narrowed and decurrent onto costa or costule-bearing segments, linear to lanceolate, mostly 0.5--1.3 mm wide; stalks greenish, not darkened; fertile margins recurved. Veins of ultimate segments obscure, free, ± pinnate and unbranched. False indusia appearing inframarginal, scarious, whitish, broad, partly concealing sporangia. Sporangia in marginal, discrete or continuous sori on abaxial surface, containing 64 spores, lacking paraphyses and glands. Spores dark brown, tetrahedral-globose, trilete, reticulate, equatorial flange absent. x = 30.