Leptobryum

Synoicous or dioicous. Asexual reproduction by rhizoidal tubers underground or in lower leaf axils. Tufts or gregarious on soil or rocks. Stems erect, simple, with rhizoids at base or along basal half; central strand present. Leaves becoming much larger and more crowded toward stem apices, setaceous to long-subulate from oblong and sheathing base, narrowly lanceolate near stem base, erect to wide-spreading or sometimes secund when moist, flexuose when dry, caniculate, not decurrent; apex setaceous, acute to acuminate in basal leaves; costa broad and occupying 1/3–2/3 or leaf base or weak and slender (not in Victoria), subpercurrent, percurrent or shortly excurrent or costa ending well below apex (not in Victoria); margin entire or serrulate toward apex, plane, without a border, unistratose or occasionally partially bistratose toward apex; laminal cells linear or rhomboid (not in Victoria), becoming long-rectangular at base, smooth, unistratose except bistratose marginal patches; alar cells not differentiated. Capsule erect (not in Victoria) or inclined to pendent, straight, pyriform from long apophysis, ribbed when dry, with a revoluble annulus. Calyptra cucullate, smooth, glabrous. Operculum conic or convex. Peristome double; endostome segments as long as or slightly shorter than exostome, with a high basal membrane; cilia present or rarely absent (not in Victoria).