Capsule narrow-mouthed when dehisced, with usually 2 or more rows of thickened cells below mouth; peristome well developed though apically truncate. Spores papillose, 27-34 µm.
Capsules mature late winter (Feb). Soil; low elevations; Calif.; Europe; sw Asia; n Africa.
Variety commutatum is known only from California (Berkeley, Howe 79, US), last collected in 1894, from which station it is disjunct to the Old World.