Stems to 0.4-0.6 cm. Stem leaves ovate to shortly ovate-lanceolate, to 1-1.4 mm, distal lamina 1-stratose, margins narrowly recurved to near apex, entire, sharply acute apically, the excurrent costa forming a sharp mucro made up of elongate cells; costa wider (to 8 cells wide) at mid leaf, adaxial surface of the costa bulging in an 1-stratose pad of cells; proximal cells poorly differentiated, quadrate. Specialized asexual reproduction lacking or possibly by fragile leaf apices. Sexual condition dioicous. Theca 1-1.4 mm, operculum 0.5-0.8 mm, peristome rudimentary or absent. Spores 8-13 µm.
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