Plants usually in extensive open tufts or mats, dull black or dark red-brown. Stems 2-13 cm, central strand absent. Leaves curved or erect when dry, narrowly ovate-lanceolate, usually sharply keeled distally, 1.6-2.8 mm, 1-stratose distally, sometimes with 2-stratose striae near costa proximally; margins recurved to just before the apex, often less recurved or nearly plane on one side of leaf, smooth or slightly denticulate near apex, 1-stratose or 2-stratose; apices acute; costa percurrent or excurrent as a smooth or weakly denticulate awn, abaxial surface smooth or weakly papillose; basal marginal cells quadrate or short-rectangular; distal cells mostly short-rectangular, 7-9 wide, smooth, usually sinuose, walls usually orange-brown. Sexual condition dioicous. Capsule dark brown, short-cylindric or cupulate, 0.6-0.9 mm; exothecial cells isodiametric, quadrate, often irregularly angular, or elongate, cell walls thin, trigonous; stomata present; peristome patent, 275-440 µm, orange-red, usually densely papillose and strongly perforated. Spores 14-25 µm, verruculose.
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