Grimmia mexicana 1Drawings Grimmia mexicana 2Locus classicus Grimmia mexicana Greven Grimmia mexicana 3Mexico, stratovolcano Pico de Orizaba, 5636 m, habitat of Grimmia mexicana. Grimmia mexicana 4Mexico, volcano Popocatepetl, 5452 m., habitat of Grimmia mexicana Grimmia mexicana 5Pico de Orizaba and Grimmia mexicana Grimmia mexicana 6Henk Greven on the slope of volcano Iztaccihuatl, 5230 m, habitat of Grimmia mexicana. Grimmia mexicana 7habit Grimmia mexicana 8habit Grimmia mexicana 9habit Grimmia mexicana 10habit with sporophyte Grimmia mexicana 11stems Grimmia mexicana 12stems Grimmia mexicana 13stems Grimmia mexicana 14leaves Grimmia mexicana 15leaf apices Grimmia mexicana 16leaf apices Grimmia mexicana 17basal part of leaf Grimmia mexicana 18basal part of leaf Grimmia mexicana 19dorsal costa Grimmia mexicana 20mid-leaf