Plants small, scattered, yellow-green; terricolous. Protonema persistent. Stems 0.1-0.2 mm tall, simple; in section round, central strand weak, inner cortical cells large, in single row, thin-walled, outer cortical cells smaller, in 2 rows, incrassate, yellow-brown. Leaves larger above, weakly flexuose dry, erect-spreading wet, elliptical, 0.4-1.0 mm long, upper and perichaetial leaves abruptly subulate, shoulders frequently with large, blunt tooth; base clasping stem; margins erect, entire. Costa weak below, stronger above, frequently extending into subula or completely absent in some leaves; in section round, guide cells 2-4, large, incrassate, ventral cells in single row, large, incrassate, dorsal cells in 2-3 rows, smaller, incrassate. Upper laminal cells fusiform to rhomboidal, thin-walled, smooth; basal cells rectangular, slightly larger. Dioicous. Perichaetia terminal; leaves not differentiated. Seta cygneous, 2-3 mm long, yellowish; capsule nodding or pendent, asymmetrically ovoid, 0.5 mm long, yellowish, mouth reddish; exothecial cells quadrate, thickened at corners, smaller at mouth; peristome well developed, teeth 16, lanceolate, 0.3 mm long, cleft to near middle, finely papillose between trabeculae below, red-yellow, apical filaments spirally striate, hyaline; operculum rostrate, 0.4-0.6 mm long; calyptra cucullate, 0.4 mm long, covering operculum beak; spores round, 10-12 µm, granulate, yellowish.
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