Plants terrestrial or epilithic. Stems stout, epigeal, wide-creeping, rooting at branching points, anisotomously branched, terete, to 1 mm in diameter, set with brown, imbricate leaves, isophyllous, herbaceous, peltate, ovate, carinate, lacerate, to 2.2 mm long, to 1.3 mm wide; primary branches grouped, erect, anisotomously branched in the upper half, dorsiventrally flattened, anisophyllous, with 2 rows of median leaves dorsally, heterophyllous. Leaves dark green adaxially, paler abaxially, imbricate, appressed, coriaceous, median leaves peltate, inequilaterally ovate or broadly acinaciform, lacerate, glabrous, to 2.5 mm long, to 1.5 mm wide, lateral leaves peltate, broadly acinaciform, erose, the thin convex border acroscopically directed, dry with age, to 3 mm long, to 1.8 mm wide. Strobili sessile, solitary at apex of secondary and lower order branches, square in frontal view, sporophylls spirally arranged, isophyllous, coriaceous, peltate, ovate, carinate, lacerate, to 1.3 x 1 mm Sporangia short-stalked, spheroidal, isovalvate, to 0.7 mm in diameter, subtended by a membranous, ovate ligule. Megaspores globose, trilete ridge indistinct, smooth or punctulate, of 2 sizes, 150 µm and 300 µm in equatorial diameter; microspores globose, trilete, minutely foveo-reticulate, 70-80 µm in equatorial diameter.
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Plant creeping, 1-3 stems arising from a stout stolon, stems 50-300 mm long. Primary branch system ovate to lanceolate in outline when moist; secondary branches with 3-8 ultimate branches 4-8 mm long (further forking may occur). Leaves heteromorphic, adnate basally: median leaves oblong-lanceolate, tapering, c. 1.25 mm long, margins with broad band of hyaline cells, dentate except apically; lateral leaves contiguous or overlapping, oblong-elliptic, c. 1.5 x 0.5 mm, apex obtuse, margins entire. Strobili borne at tips of ultimate branches, 5-8 mm long; sporophylls undifferentiated, somewhat similar to median leaves. Megaspores ± smooth or punctulate with faint triradiate ridge, of 2 sizes: 150 µm and 300 µm. Microspores minutely foveoreticulate, 70-80 µm.
Epilithic perennial. Stems repeatedly branched in upper half, primary branches erect, branchlets curling when dry. Leaves in 4 distinct rows, discolorous, dark green adaxially, beige abaxially, median and lateral leaves dimorphic, median leaves narrowly ovate-oblong, ± 1.25 mm long, margins widely serrate, lateral leaves oblong-elliptic, ± 1.5 mm long, margins entire; sporophylls hardly distinct from sterile leaves.
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