1. Platygyrium repens (Brid.) Schimp. in B.S.G. 平锦藓 ping jing xian
Bryol. Eur. 5: 98, tab. 458 (fasc. 46–47 Mon. 4). 1851. Pterigynandrum repens Brid., Muscol. Recent. Suppl. 1: 131. 1806. Type: Europe.
Plants small to rather slender, bright green to yellowish green, in glossy mats. Stems creeping, leafy branches somewhat julaceous, usually bearing many minute brood branches in leaf axils. Leaves dense, ovate-lanceolate to oblong-lanceolate, somewhat concave, shortly acuminate at apex, 1.0–1.4 mm × 0.3–0.4 mm; margins entire; costae indistinct or very weakly double; upper leaf cells shortly rhomboidal; median leaf cells rhomboidal, 26–53 µm × 5–6 µm; alar region differentiated in a small group of quadrate cells. Setae 10–15 mm long; capsules erect, cylindrical; opercula conic, shortly rostrate; peristome double; basal membrane of endostome very low. Spores yellowish green, 13–15 µm in diameter, minutely papillose.