]> FH barcode-00259623 Mexico México Baja California, along route 1 ca. 20 km E of bridge across Arroyo El Rosario and near El Aguajito, Vizcaino Region of the Sonoran Desert Acarospora socialis H. Magnusson H. Magnusson 2010-08-16 16:38:11 C. M. Wetmore