Ditrichaceae

Diagnosis: Plants small to medium sized. Stems mostly simple or nearly so. Leaves appressed or homomallous, tapering to an arcuate, subulate point from a sheathing or ovate base, the lamina narrow above; margin erect or convolute, almost entire, occasionally with a few teeth at the apex; costa broad, occupying almost the entire width of the upper lamina, percurrent to excurrent, smooth or papillose at back. Median laminal cells narrowly rectangular; cells of sheathing base rectangular, thin- or thick-walled. Setae elongate, straight, smooth; capsules erect or ± inclined, mostly oblong-cylindric, symmetric or ± arcuate-recurved with a poorly defined apophysis, furrowed when dry; operculum conic or rostrate, blunt at apex; annulus large; peristome teeth 16, each tooth deeply split into two filiform segments, reddish-brown, densely papillose. Calyptra cucullate.