Dicranella Schimp., Coroll. Bryol. Eur. 13. 1855.
Microdus Schimp. in Besch., Mém. Soc. Sci. Nat. Cherbourg 16: 161. 1872.
Plants small, terrestrial, gregarious or in tufts and mats; stems erect, simple or sparsely branched, radiculose at base. Leaves distant and reduced below, upper leaves crowded, erect-appressed to spreading or curved-secund, erect or clasping at base, gradually or abruptly narrowed above to a linear or subulate limb; margins plane or recurved, entire below and denticulate at apex, or serrulate throughout; costa single, stout, percurrent or excurrent; cells linear to subquadrate, smooth, firm-walled, not pitted, alar cells not differentiated. Dioicous. Setae elongate, erect, straight or flexuous; capsules globose to cylindric, erect or curved, smooth or ribbed when dry, struma present or absent; stomata absent; annuli large, compound, revoluble or imperfect, of several rows of small, quadrate, loosely coherent cells variously persistent at the capsule mouth after dehiscence; opercula conic-rostrate; peristome teeth 16, reddish, short or elongate, undivided or divided to below the middle into 2 papillose forks, dorsal lamellae striate papillose or irregularly papillose. Calyptrae cucullate, entire at base. Spores lightly roughened to densely papillose to warty.