Rosellinia (Xylariaceae, Ascomycota) in the Southern Yungas, novelties for the funga of Argentina

Four species of Rosellinia collected in Las Yungas ecoregion are reported for the first time for the Argentine funga: R. hyalospora, R. longispora, R. rickii and R. stenasca. These species are described and illustrated by photographs. In addition, a distribution map with the new findings and a dichotomous key to the species recognized in the country are presented. .