Plants small, in thin mats, light to yellow-green, glossy. Stems creeping, simple or sparingly and irregularly branched; hyalodermis absent, central strand absent; pseudoparaphyllia narrowly foliose or filamentous. Stem and branch leaves similar, appressed-imbricate, oblong-lanceolate, not plicate; base not decurrent; margins plane, broadly incurved on one side at base, serrate basally, serrulate distally; apex acute to obtuse; ecostate or costa indistinctly double; alar cells differentiated, quadrate to rectangular; laminal cells smooth or often with minute prorulae on abaxial surface at distal and proximal ends; . Specialized asexual reproduction absent. Sexual condition unknown.
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