2. Myurella Bruch & W. P. Schimper in B.S.G. 小鼠尾藓属 xiao shu-wei xian shu
Bryol. Eur. 6: 39 (fasc. 52–54, Mon. 1). 1853.
Plants slender, in cushions or loosely caespitose, green or dark green. Stems creeping, densely inclined or erect, irregularly branched, forkedly branched or caespitosely branched; often with bundles of rhizoids; branches obtuse at apex, often flagellate; paraphyllia absent. Leaves rounded ovate, imbricately arranged, abruptly acute, acuminate or rounded at apex; leaf margins incurved, entire or irregularly serrate; costa single, forked or absent; leaf cells minute, slightly thick-walled, inconspicuously pitted, rounded or rhomboidal, basal cells rectangular or quadrate. Dioicous. Inner perichaetial leaves reddish brown, lanceolate, acuminate above, margin plane, serrate; costae absent; cells rhomboidal. Setae 1–2 cm long; capsules ovoid or shortly cylindrical, yellowish brown, erect, curved after spores disposal; annuli differentiated; exostome teeth lanceolate, yellow or lightly yellowish, hyaline at the apex, keeled, with zig-zag median line, lamellae conspicuous on inner surfaces; endostome segments linear-lanceolate, finely papillose, nearly as long as the teeth; basal membrane high; cilia short or elongate, but shorter than segments; opercula conic, with a short beak. Calyptrae minute, cucullate.