Plants small to medium-sized, caespitose, olivaceous or yellowish green above, greenish brown or yellowish brown to brown below; cor ticolous or rarely saxicolous. Stems 5-18 mm tall, tomentose below; in section subround to subpentagonal, central strand absent, inner cortex 7-15 cells across, thin-walled to incrassate, central cell walls occasionally collapsed, outer cortical cells smaller, in 1-3 rows, incrassate or substereids, epidermis not differentiated, outer surface ± rough. Leaves erect to appressed when dry, occasionally flexuose, spreading when wet; unistratose, rarely with bistratose patches; ovate-lanceolate to lanceolate, (1.7-)1.9-3.5(-3.7) mm long; ventral surface keeled; apex acuminate, acute or rounded-obtuse, frequently channelled; margins broadly recurved to revolute, entire to crenulate below, serrulate to serrate at apex, unistratose. Costa ending below apex to subpercurrent; superficial cells rounded above, elongate below, flat to slightly bulging, smooth to weakly papillose; in section crescent-shaped, subround or subquadrate, bulging dorsally, cells scarcely differentiated, incrassate. Upper laminal cells rounded-hexagonal, incrassate, flat to bulging, 10-20 µm, smooth to papillose, papillae low, blunt; basal cells rectangular to quadrate, thin-walled to incrassate, ± flat, smooth or walls papillose, occasionally pitted. Gemmae fusiform, on leaf lamina or rarely terminal on rhizoid, uniseriate, up to 17 cells long, reddish brown. Autoicous. Perigonia gemmate, on short or long branches; inner leaves ovate. Perichaetia terminal; leaves scarcely differentiated or inner leaves smaller. Seta (0.25-)0.6-1.1 mm long, straight or twisted anticlockwise above. Capsule emergent, ± cylindrical, 1.5-2.8 mm long, contracted below mouth when dry, 8-ribbed, neck differentiated; exothecial cells quadrate to rectangular, thin-walled or longitudinal walls incrassate, smaller and incrassate towards mouth, differentiated along ribs; stomata cryptopore, on base of urn and neck. Peristome double; exostome teeth in 8 pairs, reflexed when dry, cleft down middle, frequently perforated, triangular, (160-)210-330 µm long, brownish, densely papillose; basal membrane low, processes 8, alternating with teeth pairs, linear from broad base, 140-230 µm long, smooth or weakly papillose, striolate below, pale yellow. Operculum conic-apiculate, 0.2-0.5 mm long. Calyptra 1.8-2.7 mm long, hairs uniseriate above, bi-to multiseriate below. Spores (12.5-)17.5-20.0(-22.5) µm, granulate.
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