Plants epilithic. Stems creeping, terete, often slightly flattened adaxially, up to 1 mm diam., unequally dichotomously branched, anisophyllous, heterophyllous, a single root is borne laterally or abaxially at or near a branching point along stems. Leaves on older stems brown and often torn, closely imbricate and arranged in a dorsoventral plane; lateral leaves set at 30°-45° to stem axis, obliquely ovate to scimiter-shaped. up to 2.2 x 1 mm basally truncate to near-truncate, forming a narrow erose collar, acute, bright green adaxially, drying matt green, greyish to greyish green abaxially, coriaceous, outer margin irregularly set with short outgrowths, often somewhat short-fimbriate near base, inner margin entire, but basally slightly folded inwards, clasping stem, and short-fimbriate, adaxially with a narrow band of stomata in distal part of leaf, parallel to central vein, abaxially with a narrow band of stomata parallel to vein extending from near leaf base to near leaf apex; median leaves set at 60° or more to stem axis, obliquely ovate, up to 2.3 x 0.9 mm, bright green adaxially. drying matt green, greyish green abaxially, coriaceous, basally truncate to near truncate, forming a narrow erose to short-fimbriate, acute, outer margin irregularly set with short outgrowths, proximal part infolded, clasping stem and short-fimbriate, inner margin irregularly short-fimbriate, adaxially with narrow band of stomata along central vein extending from lower V, of leaf to near apex, abaxially with broad central band of stomata extending from base to near apex; ligule near circular, erose. Strobili sessile, solitary at apex of secondary or lower order branches, up to 4 mm long, isophyllous; sporophylls in 4 ranks, coriaceous, peltate, weakly carinate, with narrow repand collar proximally, irregularly serrulate, up to 2 x 1.2 mm Sporangia sessile, isovalvate, reniform, up to 1 x 0.8 mm Megaspores pale yellow, 4 per sporangium, colliculate. Microspores unknown.
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