7. Hypopterygium tibetanum Mitt. 西藏孔雀藓 xi-zang kong-que xian
J. Proc. Linn. Soc., Bot., Suppl. 1: 148. 1859. Type. China: Southern Xizang (Tibet), Thomson 682.
Primary stems prostrate, rhizoids tomentose; secondary stems erect, 2.5–4.0 cm high. Lateral leaves broadly ovate, asymmetric, ca. 1.4 mm × 0.7 mm, acuminate; leaf margins bordered by 1–2 rows of narrowly elongate cells, serrulate at the apex; amphigastria ovate-rounded, symmetric, ca. 0.8 mm × 0.6 mm, cuspidate at the apex; leaf margins bordered by 1–2 rows of narrowly elongate cells, nearly entire; costa ending at the apex. Setae 1.4–1.6 cm long, curved in the upper part; capsules inclined, shortly cylindrical, ca. 1.3 mm long, 0.3 mm in diameter, slightly curved; opercula conical at base, rostrate.