Hedwigia 80: 183. 1941. Weisiopsis setschwanica Broth., Symb. Sin. 4: 37. 1 f. 3. 1929. Type. China: Sichuan (Setschwan), Ya-long-jiang (River), Handel-Mazzetti 2049 (holotype H).

 

Plants small, 5–15 mm high, yellowish green, in dense tufts. Stems erect, simple or branched, densely foliate. Leaves involute-contorted when dry, erectopatent when moist, oblong-lanceolate to lanceo-ligulate, ca. 2 mm long, bluntly acute with a short apiculus; margins entire, inrolled in the upper half; costa stout, percurrent; upper leaf cells quadrate to subquadrate or rounded-hexagonal, distinctly mammillose on both surfaces; basal cells shortly rectangular, smooth, hyaline. Autoicous. Setae straight, ca. 6 mm long; capsules erect oblong-ovoid, ca. 1 mm long; annuli differentiated, of 1–2 rows of cells, persistent; opercula conic-rostrate, with a long, oblique beak. Spores spherical, 15–20 µm in diameter, finely papillose.