María J. Cano and Marta Alonso from University of Murcia (Spain) carried out an expedition to Northern Argentina in March of 2014. This trip was funded by Spanish Ministry of Education and Science through the project “Studies in the family Pottiaceae in South America. Phase III” (CGL2010-15959). This exploration was carried out thanks to the cooperation of National Herbarium of Córdoba (CORD). About 420 specimens of bryophytes were collected, keeping at CORD and MUB. We wish acknowledge the assistance of Gloria Barboza (National Herbarium of Córdoba) and Olga G. Martínez (National University of Salta).