3. Fauriella tenuis (Mitt.) Card. in Broth. 粗疣藓 cu-you xian
Nat. Pflanzenfam. (ed. 2), 11: 282.1925. Heterocladium tenue Mitt., Trans. Linn. Soc. London, Bot. 3: 176. 1891. Type. Japan, Nikko, Bisset s.n.
Plants light green or yellowish green, not glossy, in small dense cushions. Stems prostrate, irregularly branched, branches slender and unequal in length, obtuse at apex. Leaves imbricate, rounded ovate, concave, acuminate; margins involute, serrate; costa absent or shortly double; leaf cells rounded rhomboidal, 18–25 µm × ca. 5 µm, thick-walled, grossly unipapillose; alar cells quadrate. Dioicous. Setae 1.0–1.5 cm long, reddish brown; capsules small, suberect or horizontal, pendulous after broken; opercula conic; annuli not differentiated; peristome double; exostome teeth lanceolate, keeled, with zig-zag median line, papillose above, densely striate at lower part; endostome segments as long as exostome teeth; basal membrane high; cilia 1–2. Calyptrae cucullate. Spores 10–13 µm in diameter.