Plants in dense patches, dark green, brown-green, sometimes almost black. Stems 0.5-1 cm, central strand strong. Leaves lanceolate to ovate-lanceolate, 1-1.8 × 0.2-0.6 mm, keeled, not plicate, one margin commonly recurved, sometimes both plane, awn 0.3-0.8 mm, costal transverse section prominent, semicircular; basal juxtacostal laminal cells rectangular to elongate, straight, thin-walled; basal marginal laminal cells short-to long-rectangular, straight, thick transverse and thin lateral walls, hyaline or not; medial laminal cells quadrate, sinuose, thick-walled; distal laminal cells 1-stratose, often bulging, marginal cells widely 2-stratose, often bulging. Sexual condition cladautoicous, perichaetial leaves not enlarged. Seta straight, 1-2.5 mm. Capsule usually present, exserted, yellow, ovoid to elliptic, exothecial cells short-rectangular, thin-walled, stomata present, annulus of 1 row of quadrate, thick-walled cells, operculum conic, usually with a short obtuse beak, peristome present, fully-developed, split or solid in distal half.
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