2. Gollania clarescens (Mitt.) Broth. 粗枝藓 cu zhi xian
Nat. Pflanzenfam. I(3): 1055. 1908. Hylocomium clarescens (Mitt.) Broth. in Par., Index Bryol. (ed. 2) 2: 351. 1904. Microthamnium clarescens (Mitt.) Jaeg., Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1876–77: 430. 1878. Stereodon clarescens Mitt., J. Proc. Linn. Soc., Bot., Suppl. 2: 100. 1859. Type: India. Simla, Thomson 1064b.
Hypnum clarescens Wils. in Mitt., J. Proc. Linn. Soc., Bot., Suppl. 1: 100. 1859, nom. illeg.
Plants medium-sized, pale yellowish green or pale brownish green, somewhat glossy. Stems prostrate, up to 5 cm long, irregularly or pinnately branched; stem elliptic in cross section; stems and branches terete, leaves spreading; branches ca. 1 cm long; pseudoparaphyllia lanceolate, 3–10 cells wide at base. Stem leaves differentiated, dorsal leaves erect or slightly falcate, 2.2–2.3 mm × 0.8–0.9 mm, elliptic-lanceolate, gradually and slenderly acuminate; slightly decurrent at base; margins recurved at base or nearly throughout; costae double, ca. 1/4 the leaf length, separate at base; median leaf cells narrowly rhomboidal, 45–65 µm × 3–4 µm, thin-walled, sometimes prorate; alar cells somewhat differentiated, in 3–5 longitudinal rows, 3–4 transverse rows; ventral leaves plane, hardly rugose at apex; branch leaves narrower, 1.2–1.4 mm × 0.3–0.6 mm. Perichaetial leaves straight at apex, costae indistinct, thin-walled. Setae 2–3 cm long; capsules ovoid, horizontal, 1.2–1.7 mm long. Spores 10–13 µm in diameter.