1. Anomodon Hook. & Taylor 牛舌藓属 niu-she xian shu
Muscol. Brit. 79. 3. 1818.
Plants robust, rather rigid, dark green, yellowish green or brownish green, in lax or dense tufts or cushions. Primary stems creeping, secondary stems erect or ascending, remotely and irregularly pinnately branched; branch apices often curved, with leaves remotely arranged and revolute at apex when dry; commonly with stoloniferous branches; paraphyllia absent. Stem leaves similar to branch leaves, ovate or oblong-ovate at the base, rarely with small auricles, suddenly narrowed to a widely lingulate or oblong-lingulate acumen, rarely lanceolate, with a rounded apex, rarely serrate at the apex; leaf margins often undulate or rugose; costa single, mostly ending only a few cells below the apex; leaf cells isomorphic, hexagonal or rounded hexagonal, equally thick-walled, grossly multipapillose or sharply unipapillose; basal median cells usually hyaline along the costa. Dioicous. Perichaetial leaves lanceolate from a sheathing base. Setae slender, up to several centimeters long; capsules cylindrical, shortly cylindrical or ovoid, smooth, or strict when dry; stomata absent or rarely present; annuli mostly differentiated; opercula conical, sometimes beaked; exostome teeth light yellow or brownish yellow, narrowly lanceolate, densely papillose, rarely weakly striate at the base, nodulose or nodules absent; endostome segments pale, finely papillose, well developed or rudimentary, sometimes keeled; basal membrane low; cilia short and weak, rudimentary or lacking. Calyptrae smooth, rarely papillose above.