Plants terrestrial, forming loose to dense mats. Stems short-creeping, branched, branches 1--2-forked, flat, not articulate, glabrous. Rhizophores throughout stem length, 0.06--0.1 mm diam. Leaves papery, delicate. Lateral leaves nearly perpendicular to stem, green, ovate to ovate-elliptic, 1--2 X 0.5--1.3 mm; base rounded to slightly subcordate; margins slightly transparent, serrate; apex acute. Median leaves ovate to ovate-lanceolate or lanceolate, 1--1.8 X 0.4--0.8 mm; base rounded to oblique; margins green, serrate; apex abruptly tapered, long-acuminate to bristled, frequently transparent, midrib extending into apex. Strobili solitary or paired, lax, flattened, 1--4 cm; sporophylls ovate to ovate-deltate, strongly keeled, keel dentate, base glabrous, slightly cordate to rounded, margins serrate, apex acuminate; megasporophylls larger and wider than microsporophylls, usually on underside of strobili.
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