1. Leptocladiella delicatula (Broth.) Rohrer 纤枝薄壁藓 qian zhi bao bi xian
J. Hattori Bot. Lab. 59: 266. 1985. Macrothamnium delicatulum Broth., Symb. Sin. 4: 131. 1929. Type: China. Sichuan, Yan-yuan (Yenyüen) Co., Handel-Mazzetti 1486 (holotype H).
Plants soft, yellowish green or light green, glossy. Main stems slender and elongate, falcate-spreading, densely pinnately or bipinnately branched, unbranched at base. Branches usually arcuate, 1–2 cm long. Stem leaves appressed when dry, nearly round, with a small cuspidate, reflexed apex, long decurrent at base, ca. 0.9 mm × 0.7 mm, plicate; margins reflexed, serrulate above; costae long, often forked at base; median leaf cells linear, slightly vermiform, 35–45 µm × 4.0–4.5 mm, thin-walled, minutely prorate; basal cells rectangular, with walls slightly thicker than that of median leaf cells, somewhat pitted; alar cells large, rectangular, thin-walled; branch leaves appressed, broadly ovate or nearly round, acute at apex, long-decurrent at base, 0.7 mm × 0.5 mm; margins reflexed, serrate above; costae long, often forked; leaf cells strongly prorate.