Plants (0.5-)2-7(-20) cm, in tufts or mats. Stems brown or black with age, erect, inclined, arching, or ± plagiotropic, simple, irregularly and sparingly branched, or branched distally, not dendroid; rhizoids brown or reddish brown, macronemata present, not in longitudinal rows, micronemata present or absent. Leaves often bluish green or green, brownish or reddish when old, crisped or not when dry, erect or erect-spreading, flat or somewhat undulate when moist, ovate or broadly elliptic, 1-2(-2.5) mm; base not to long-decurrent; margins plane, green or bluish green, 1-stratose, entire; apex obtuse, acute, or rounded, apiculate or not; costa subpercurrent or percurrent, distal abaxial surface smooth; medial laminal cells ± isodiametric or short-elongate, 22-45 µm, often in longitudinal and diagonal rows, weakly collenchymatous, walls weakly pitted; marginal cells differentiated, linear or short-linear, sometimes rhomboidal, in 1-3 rows. Specialized asexual reproduction from fragile stem fragments, plants sometimes breaking only near stem apex. Sexual condition dioicous. Seta single, brown, 3-4 cm, straight. Capsule strongly inclined to horizontal, brown, cylindric, 4-5 mm; stomata phaneroporous; operculum short-apiculate; exostome yellow; endostome pale yellow, . Spores 13-25 µm.
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