Ecology. High open Yungas montane and puna, on soil and rocks. Elevation. 3500-4000 m elevation. Distribution. Bolivia: Cochabamba, Oruro. World range: South America (Argentina, Bolivia, Chile and Uruguay); rather widespread in the Northern and Southern Hemispheres. Tortula atrovirens is characterized by the oblong-lingulate to lingulate leaves to 1.8 mm, obtuse to acute apex (sometimes cucullate), entire to papillose-crenulate, recurved to revolute margins throughout, unistratose lamina, costa percurrent to short excurrent (mucro), in cross-section costa with single stereid band below (abaxil), bulging adaxail costa epidermal cells enlarged (similar to lamina cells), pluripapillose upper laminal cells (papillae mostly bifurcate), autoicous sexual condition, setae to ca. 5 mm, erect, ovoid-cylindrical capsules to 1.8, and 16 divided into 32 filamentous peristome teeth. Tortula minima Herzog, collected by Herzog between Choro and Cocapta (Department of Cochabamba), is a synonym (fide Cano & Gallego 2008).

Ecoregiones. Alta abiertas Yungas montano y puna. Habitat. Sobre suelo y rocas. Altitud. 3500-4000 m. Distribución. Bolivia: Cochabamba, Oruro. Distribución mundial: América del Sur (Argentina, Bolivia, Chile y Uruguay); distribución bastante amplia en hemisferio norte y sur. Tortula minima Herzog, colectada por Herzog entre Choro y Cocapta (departamento de Cochabamba), es un sinónimo (fide Cano & Gallego 2008).