Plants in open, rarely compact tufts or mats, dark olivaceous, sometimes brownish or black. Stems (0.9-)1.3-2.5(-5) cm, central strand absent or indistinct. Leaves erect or curved, often toward stem, sometimes contorted when dry, linear-lanceolate to ligulate, sometimes oblong-lanceolate, weakly keeled or concave proximally, usually nearly flat distally, sometimes concave or rarely weakly keeled, 1-3.5 mm, 1-stratose; margins plane or weakly recurved proximally, plane, rarely incurved distally, smooth or weakly crenulate, sometimes eroded distally, usually 1-stratose, occasionally partly 2-stratose; apices obtuse or acute, sometimes ending in a hyaline cell; costa sub-percurrent or percurrent, awn absent, smooth; basal marginal cells short-rectangular or quadrate; distal laminal cells quadrate or short-rectangular, often rounded, (7-)9-12 µm wide, smooth, weakly sinuose. Sexual condition autoicous. Capsule light brown, rarely almost black, campanulate, rarely cupulate, 0.8-1.2(-1.5) mm; exothecial cells isodiametric or slightly elongate, often round or irregularly angular, walls thick, often somewhat curved, trigonous; rim darker than capsule wall, sometimes red; stomata absent; peristome squarrose to revolute, 350-570 µm, red or orange-red, finely papillose, moderately to strongly perforated. Spores 10-18(-25) µm, smooth or granulose.
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