Tortula

• Authority

  Britton, Nathaniel L. & Millspaugh, Charles F. 1920. The Bahama Flora.

• Family

  Pottiaceae

• Scientific Name

  Tortula

• Description

  
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  Description - Plants of various sizes, sometimes large and stout; usually growing on the ground or on rocks, scattered or in cushions. Stems usually simple, rarely branched; with the leaves often crowded in a rosette at the top of the stem, usually spreading when dry, or twisted, mostly broader above the middle; margins usually entire; vein single, sometimes excurrent into an awn; basal cells long, clear and smooth, the upper small and dense, generally papillose. Pedicel erect, elongate; capsule erect, cylindric; lid usually long-beaked; calyptra cucullate; peristome single, usually twisted, arising from a basal membrane; teeth 16 or 32, slender, papillose; spores small. [Latin, with reference to the twisted peristome.] A large genus of 186 species widely distributed in all parts of the world. Type specie-: Bryum murale L.