Plants in dense compact tufts, green to yellowish brown, shiny, rarely somewhat dull. Stems 3-8(-17) cm, densely tomentose with reddish brown rhizoids. Leaves erect-appressed or sometimes slightly falcate or flexuose, somewhat contorted when dry, the apex often twisted, weakly to strongly undulate, (4.5-)5-7.5(-11) × 0.7-1.2 mm, concave proximally, keeled above, lanceolate to oblong-lanceolate, broadly acute, rarely narrowly acute; margins plane, sometimes involute at base, broadly recurved at apex, entire proximally, serrulate to serrate in the distal half; laminae 1-stratose, sometimes with a few 2-stratose regions; costa strong, ending before the apex, sometimes nearly percurrent, 1/6-1/3 the width of the leaves at base, smooth to serrulate above on abaxial surface, with a row of guide cells, two stereid bands extending to apex, adaxial epidermal layer of cells not differentiated, the abaxial layer diffferentiated; cell walls between lamina cells weakly to strongly bulging abaxially and adaxially; leaf cells smooth to ± papillose near apex on abaxial surface; alar cells 2-stratose, differentiated, not extending to costa; proximal laminal cells elongate, incrassate, pitted, (22-)38-61(-79) × (2-)4-6(-8) µm; median laminal cells rectangular, pitted; distal laminal cells short-rectangular to irregularly angled, not pitted, (7-)11-14(-28) × (4-)11-12(-17) µm. Sexual condition pseudomonoicous; dwarf males on stem rhizoids of female plants; interior perichaetial leaves abruptly acuminate, convolute-sheathing. Seta 2-4 cm, solitary, yellow to brown. Capsule 2-2.8 mm, arcuate, inclined, furrowed when dry, ± contracted below mouth, yellow to yellowish brown or reddish brown; operculum 2-3 mm. Spores 14-28 µm.
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