Plants in dense tufts, green to yellowish green or brownish, ± glossy. Stems 2-8 cm, tomentose with reddish brown rhizoids. Leaves straight or nearly so, spreading, little changed when dry, smooth, 3-5.5 × 0.6-1.2 mm, concave or tubulose proximally, tubulose to slightly keeled above; ovate-lanceolate, apex obtusely acute; margins serrate near apex; laminae 1-stratose; costa subpercurrent to percurrent, 1/10-1/8 the width of the leaves at base, smooth or weakly toothed on abaxial surface near apex, with a row of guide cells, two weak stereid bands, at least in basal part of leaf, adaxial and abaxial epidermal layers of cells not differentiated; cell walls between lamina cells not bulging; leaf cells smooth; alar cells 1-or 2-stratose in part, differentiated, not extending to costa; proximal laminal cells linear-rectangular, pitted, (45-)65-120(-150) × (13-)16-17(-19) µm; distal laminal cells shorter, narrow, pitted or with few pits, (20-)30-45(-60) × (5-)8-10(-13) µm. Sexual condition dioicous; male plants about as large as the female or slightly smaller; interior perichaetial leaves ± abruptly acuminate, convolute-sheathing. Seta 1.5-3 cm, solitary, rarely two per perichaetium, yellow to reddish brown. Capsule 1.5-4 mm, erect, straight or nearly so, furrowed when dry, brown; operculum 1.6-2.8 mm. Spores 13-19 µm.
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