New records of the genus Ramalina (Lecanorales, Ascomycota) in Dagestan with a key to species

. Based on morphological, chemical and molecular evidences, Ramalina europaea, R. lacera, and R. obtusata are reported for the first time for Dagestan. Ramalina lacera is the first confirmed record for the Russian part of the Caucasus and the second one for Russia. ITS of nuclear ribosomal DNA barcodes for Caucasian specimens of R. lacera and R. obtusata are generated for the first time. Specimen descriptions for firstly revealed species are presented. A key for identification of the 13 known taxa of the genus Ramalina in Dagestan is provided.