Aulacomnium

Dioicous. Asexual reproduction by leaf-like ecostate gemmae produced in a cluster on a terminal pseudopodium. Tufts or mats on soil, rocks (not in Victoria) and logs (not in Victoria). Stem erect, simple or branched by innovation, tomentose along most of length; central strand present. Leaves oblong or elliptic to linear-lanceolate, symmetric, arranged around stem and facing all directions, monomorphic, erect to erect-spreading when moist, scarcely altered or contorted when dry; apex obtuse, acute or acuminate (not in Victoria), without a hairpoint; costa subpercurrent; margin entire or denticulate near apex, revolute or recurved, without a border; laminal cells rounded-quadrate, elliptic or short-rectangular especially near base, smooth throughout (not in Victoria) or unipapillose except near base, sometimes pigmented and bistratose at base; alar cells not differentiated. Acrocarpous. Capsule erect to horizontal, symmetric or asymmetric, ovoid, obloid or cylindric, with 8-longitudinal ribs when dry, with an annulus. Calyptra cucullate, smooth, glabrous. Operculum conic (not in Victoria) or rostrate. Peristome double; endostome segments similar length as exostome teeth, with a high basal membrane; cilia present.