Plants terrestrial, forming tiny (1--4 cm), dense clumps. Stems short-creeping, unbranched or few-forked, flat, not articulate, glabrous. Rhizophores axillary, 0.02--0.04 mm diam. Leaves delicate, papery. Lateral leaves spreading, well spaced or crowded toward stem tip, green, ovate to ovate-oblong, 1--1.5 X 0.5--0.9 mm; base rounded; margins transparent, serrate; apex acute. Median leaves lanceolate, 0.8--1.2 X 0.3--0.35 mm; base oblique; margins transparent, serrate; apex bristled; bristle to 1/3 length of leaf. Strobili solitary, 2--3 mm; sporophylls ovate-lanceolate, strongly keeled toward tip, keel dentate, base glabrous, margins serrate, apex long-acuminate.
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