Plants 5-10 mm, dark black-green. Leaves ovate-lanceolate, (0.8-)1.5-1.8 × (0.3-)0.6-0.8 mm, margins incurved distally, apex often cucullate, awn 0.3-0.5 mm or absent, lamina 2-plicate, extending from apex to base; basal juxtacostal laminal cells short-rectangular, 19-33 × 9-13 µm, evenly thick-walled; basal marginal laminal cells quadrate to short-rectangular, 13-27 × 9-13 µm, evenly thin-walled; medial laminal cells patchy 2-stratose; distal laminal cells 2-stratose. Sexual condition dioicous. Seta 0.3-0.5 mm. Capsule immersed, ovoid to campanulate; peristome absent.