Plants small to large, in tufts or not, yellowish, green, or brown, glossy or dull. Stems creeping to erect, , 1-or 2-pinnate or irregularly branched, ; hyalodermis and central strand present or absent; pseudoparaphyllia filamentous to foliose. Stem and branch leaves similar, secund or falcate-secund, , broadly to narrowly ovate, , not to strongly plicate; base decurrent or not; margins sometimes recurved basally, usually plane distally, sinuate to entire proximally, toothed to entire distally; apex acuminate or acute; costa double or obscure, usually to 1/4 leaf length; alar cells often differentiated, quadrate, subquadrate, triangular, or hexagonal; laminal cells smooth; . Specialized asexual reproduction absent. Sexual condition autoicous, dioicous, or phyllodioicous; outer perichaetial leaves reflexed, inner leaves erect, ovate to lanceolate or subulate, apex slenderly acuminate. Seta yellowish to reddish. Capsule erect, inclined, or horizontal, long-cylindric to ovoid, usually curved, commonly contracted below mouth; annulus 1-3-seriate to scarcely differentiated; operculum conic to rounded-mammillate; peristome double; exostome teeth with external surface with distinct zigzag line and lamellae, finely cross striolate basally, hyaline and papillose distally; endostome basal membrane high, segments ca. as high as teeth, carinate, cilia 1-3 or sometimes rudimentary. Calyptra naked. Spores round, smooth or finely papillose.
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