Leucoloma Brid., Bryol. Univ. 2: 218. 1827.
Plants slender to medium, pale green, in mats or tufts; stems erect, sparsely and irregularly branched, weakly tomentose; central strand absent. Leaves gradually subulate-lanceolate from an ovate base; margins subtubulose to incurved, serrate at apex, otherwise entire; costa narrow, excurrent, percurrent or ending just below the apex; upper cells pluripapillose, marginal cells smooth, narrow, hyaline forming a distinct border, widest near midleaf and frequently indistinct near the base; alar cells well developed, sometimes forming auricles. Dioicous. Setae erect; capsules cylindric, erect; opercula long and narrowly conic; peristome teeth 16, divided to middle or entire. Calyptrae cucullate.