Plants in fine sods or loose mats. Stems 1-6(-10) cm, brownish black, prostrate, defoliate proximally, branches 1-2 cm, ascending, simple; paraphyllia becoming scarce in emergent plants; pseudoparaphyllia foliose; rhizoids matted, brown. Stem leaves somewhat contorted when dry, 0.5-1.3(-1.5) mm; limbidia sometimes disappearing before acumen or base, sometimes with spurs extending into lamina; costa 40-60(-75) µm wide at base; basal laminal cell walls thick, sometimes pitted. Perichaetia with leaves lanceolate, 0.5-0.8 mm, margins serrulate, apex acuminate, costate. Seta single, yellow to reddish brown, 1-3 cm, straight or flexuose, tortuose in aquatic plants. Capsule reddish brown, 1.5-3 mm, usually shrunken below mouth when dry; exothecial cells rectangular; stomata superficial; annulus deciduous, 2-or 3-seriate; operculum conic-apiculate; exostome teeth 16, yellowish brown, lanceolate, external surface cross striolate proximally, papillose distally, internal surface trabeculate; endostome pale yellow, basal membrane high, papillose. Calyptra yellow. Spores finely papillose, yellowish brown.
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