Stems 6-10 mm. Leaves 2-3 mm, erect-appressed and somewhat wrinkled when dry, spreading when moist, oblong-ovate, concave and distinctly channeled, the apex cucullate, usually minutely apiculate; margins entire or denticulate near apex; costa ending in apex or very shortly excurrent, abaxially smooth or faintly roughened near apex; lamellae 7-10, 6-12 cells high, in profile entire or crenulate with bulging cell walls; cells of leaf base short-rectangular, narrower toward margin; median cells of lamina 15-20(-24) µm wide, thin-to firm-walled, becoming narrower and obliquely rhombic at the margin; perichaetial leaves 2.5-3.5 mm. Seta reddish brown, 8-18 mm. Capsule 3.2-5 mm, pale greenish brown, dark brown to blackish when old, long-cylindric, moderately to strongly curved, only rarely somewhat gibbous; peristome teeth 250-380 µm.
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