8. RozeaBesch. 小绢藓属 xiao-juan xian shu
Mém. Soc. Sci. Nat. Cherbourg 16: 241. 1872.
Plants slender or somewhat robust, delicate, green, light yellowish green or reddish brown, glossy, in small patches. Stems creeping, forkedly or caespitosely branched; branches dense, erect or erecto-patent, obtuse at apex; central strand absent; pseudoparaphyllia foliose. Leaves imbricate when dry, sometimes slightly secund, erect or erecto-patent, elliptic-ovate or widely ovate-lanceolate, concave, longitudinally plicate, shortly acute or long acuminate at apex; margins revolute, toothed near the apex; costa single, vanishing in the middle of leaf; leaf cells oblong-elliptic or narrowly rhomboidal, mostly smooth, rarely papillose or projecting; basal cells short, loosely arranged; alar cells quadrate or flat quadrate. Autoicous or dioicous. Inner perichaetial leaves light green, widely lanceolate, piliferous at apex; costa short. Setae slender, erect, reddish; capsules erect, cylindrical, reddish brown, apophysis short; opercula conic, with a short beak; annuli absent; peristome double; exostome teeth lanceolate, yellowish, with zig-zag median line, densely striolate, distinctly trabeculate on inner surfaces; endostome segments light yellow, narrowly lanceolate, as long as exostome teeth, folded, smooth; basal membrane low, rarely high; cilia short, weak. Spores spherical, small.