Plants moderately robust, dark-green to brown or almost blackish, generally in loose tufts. Stems 2-6.5 cm high, simple, often felted with whitish rhizoids. Leaves 5-10 mm, erect-spreading when dry, widely spreading and somewhat recurved when moist; sheath about 2 mm, hyaline-margined, the cells at the shoulders forming a differentiated hinge; blade lanceolate, acuminate, sharply serrate nearly to the sheath; costa short-excurrent, ending in a short, brownish or reddish brown point; marginal lamina plane to erect, 2-8(-20) cells wide; lamellae 18-50, crenulate in profile, 4-7 cells high, marginal cells in section narrow, pyriform, thickened at the narrowed apex, smooth; sheath cells rectangular, 4-6:1; cells of marginal lamina 9-13 µm, rounded to subquadrate. Sexual condition dioicous; perichaetial leaves not much differentiated. Seta 3.5 cm. Capsule 4.5-5 mm, 4-angled; hypophysis cylindric but not sharply delimited; exothecial cells absent a central thin spot. Spores 11-13 µm.
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