1. Meesia longisetaHedw. 寒藓 han xian
Sp. Musc. Frond. 173. 1801. Amblyodum longisetum (Hedw.) P. de Beauv., Dict. Sci. Nat. 2: 23. 1804. Diplocomium longisetum (Hedw.) Web. & Mohr, Index Mus. Pl. Crypt. 3. 1803. Type: Europe.
Plants large, yellowish green or brownish above, dark brown below, in loose tufts. Stems erect, 3–5 cm high, usually not branched. Leaves somewhat in 3 ranks, evenly spaced, decurrent at base, crisped when dry, erect or squarrose when moist, ovate-lanceolate, gradually acuminate or blunt at apex; margins plane, usually entire, sometimes denticulate, slightly revolute; costae slender, ending in the apex to nearly percurrent; leaf cells shortly rectangular, thin-walled, smooth; basal cells rectangular, elongate at margins. Synoicous. Perichaetial leaves elongate. Setae 8–10 cm long, straight, reddish brown; capsules ca. 5 mm long, pyriform, curved; neck elongate, yellowish brown; opercula small, shortly conic; annuli in 2 rows, deciduous. Spores 30–40 µm in diameter, yellowish brown, densely papillose.