Stems 1.5 cm, 0.8-1 mm wide, complanate-foliate; cortical cells in 2 or 3 rows, moderately small, walls thick, central cells large, walls thin; pseudoparaphyllia 2-4 cells wide, serrulate to toothed, sometimes with 1-celled, large teeth, usually mixed with entire pseudoparaphyllia, 3-6 cells in length; rhizoids few, on ventral surface of stems and branches, single or in clusters just proximal to leaf insertion, smooth; axillary hairs 108 µm, usually in axils of distal leaves near apical bud, basal cell 1, distal cells 1 or 2. Leaves stiff, asymmetric, not concave, 0.3-0.5 × 0.1-0.2 mm; marginal serrations often formed by 2 abutting basal cells; apex falcate; alar cells 8-19 × 6-7µm, region of 1-4 rows of cells, 2-7 cells in marginal row; medial laminal cells linear-flexuose to rhomboidal, 32-45 × 4-5 µm, walls thin to moderately thick, not pitted; apical cells 10-28 × 5-7 µm. Sporophytes unknown.
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