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Published In: Bryologia Universa 2: 277. 1827. (Bryol. Univ.) Name publication detail

Project Name Data (Last Modified On 12/16/2011)
Acceptance : Accepted
Notes     (Last Modified On 12/14/2011)
general taxon notes:
There are seven species of Trachyloma in the world (Crosby et al. 2000). Miller and Manuel (1982) recognized five species. One species is known in China.


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13. Trachyloma Brid.   粗柄藓属   cu bing xian shu
Bryol. Univ. 2: 277. 1827.
Plants robust, stiff, light green to dark brown, glossy, in loose tufts. Primary stems prostrate, stoloniform, loosely or densely sympodially branched, with scale-like leaves and brownish rhizoids; stipe short, sparsely foliate; upper secondary stems erect, frondose, complanate, simple or pinnately branched; pseudoparaphyllia narrowly lanceolate; central strand present. Leaves of secondary stems and mature branches more or less similar, often complanately appressed when dry, erect-spreading when moist, broadly ovate to ovate, elliptical or ovate-lanceolate, symmetric or asymmetric, shortly acuminate, acute or obtusely pointed; margins plane, serrate above; costae single, very short, or double, forked or rarely absent; leaf cells narrowly rhombic to rhomboidal or linear, smooth; basal cells shorter and lax, indistinctly porose, sometimes colored; alar cells scarcely differentiated. Gemmae in axils, filamentous, multicellular, uniseriate, reddish brown. Dioicous. Inner perichaetial leaves smaller than vegetative ones, narrowly ovate-lanceolate, somewhat sheathing at the base, plicate, serrate at the apex, ecostate. Setae elongate, smooth; capsules cylindrical, erect or sometimes slightly curved; opercula conic, long rostrate; annuli not clearly differentiated; peristome double, inserted at the mouth; prostome absent; exostome teeth 16, linear-lanceolate, densely papillose; endostome segments 16, linear, nearly as long as the teeth, hyaline, densely papillose; basal membrane low; cilia rudimentary. Calyptrae cucullate, hairy or smooth. Spores spherical, finely papillose.
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