Plants small, hyaline above, light green below; terricolous. Stems 0.2-0.3 mm tall; in section round, central strand absent or with 1-3 smaller cells, cortical cells lax, reddish toward margin. Leaves imbricate and with flexuose awns wet or dry, concave; broadly oval to oblong, 0.5-1.0 mm long; apex acute, hyaline; margins plane, entire below, irregularly dentate near apex. Costa long-excurrent as a smooth, hyaline awn, to 1 mm long in upper leaves; upper ventral surface with lamellae, dorsal superficial cells rectangular, smooth; in section round, guide cells 2, ventral, each bearing a short, plate-like lamella, 6 cells high, dorsal stereid band 2 cells thick, cells frequently substereids, dorsal surface cells substereids, outer walls strongly thickened. Upper laminal cells rhomboidal to hexagonal, thin-walled, smooth; marginal cells narrower, forming weak border in upper leaf; basal cells rectangular. Paroicous. Perichaetial leaves not differentiated. Setavery short, 0.2-0.3 mm long; capsule cleistocarpic, globose with minute apiculus, to 1 mm long, reddish yellow; exo-thecial cells quadrate to short-rectangular; calyptra small, mitrate; spores round, 23-25 µm, strongly incrassate, granulate to almost smooth, frequently with 3-4 large oil bodies.
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