The genera Hypotrachyna and Remototrachyna (Parmeliaceae, Ascomycota) in northeastern Argentina

Abstract

Morphological, chemical and phylogenetic examination of the lichen genera Hypotrachyna and Remototrachyna (Parmeliaceae, Ascomycota) revealed the presence of 12 species in northeastern Argentina. Three of them, H. osseoalba, H. subformosana, and R. costaricensis, are recorded for the first time for the country. The known distribution range of other eight species in the region is also extended. Distribution and comments are presented for all species, and descriptions and illustrations for most relevant records. The phylogenetic relationships of the species of Hypotrachyna and Remototrachyna reported from northeastern Argentina are analyzed.