6. Physcomitrium repandum (Griff.) Mitt. 匍生立碗藓 pu-sheng li-wan xian
J. Proc. Linn. Soc., Bot., Suppl. 1: 54. 1859. Gymnostomum repandum Griff., Calcutta J. Nat. Hist. 2: 478. 1842. Type. India: Upper Assam, Griffith s.n.
Plants small, yellowish green, in loose tufts. Stems erect, unbranched, 3–5 mm high. Leaves flexuous to contorted when dry, erect-patent when moist, oblong-obovate, 1.8–2.0 mm × 0.3 mm, acuminate at apex; margins usually incurved and entire below, serrulate above; costa percurrent; upper leaf cells short-rectangular to oblong-hexagonal, 35–38 µm × 24–27 µm; basal cells irregularly rectangular to oblong, 40–50 µm × ca. 30 µm; marginal cells narrowly rectangular, slightly differentiated. Autoicous. Setae reddish brown, ca. 5 mm long; capsules turbinate, reddish brown, ca. 1.5 mm long, mouth wide, ca. 2.0 mm in diameter, neck short; opercula low-conic, with a short apiculus; annuli small; peristome absent. Calyptrae inflated-mitrate, 3–4-lobed at base. Spores irregularly spherical, brownish, ca. 25 µm in diameter, papillose.