Contributions to the lichen flora of the Stavropol Territory (Central Caucasus, Russia)
New data on lichen flora of the Stavropol Territory (Central Caucasus) are provided. Study of four protected natural areas of the Stavropol Territory - «Lermontova Skala» and «Mashuk Mountain» natural monuments, and «Beshtaugorskiy» and «Malyy Essentuchok» sanctuaries resulted in finding of 279 species: 258 species of lichens, 18 species of lichenicolous fungi and 3 species of non-lichenized saprobic fungi. Among them Bacidia notarisiana, Buelliella minimula, Pertusaria pluripuncta, Psorotichia vermiculata, Protoparmelia memnonia, Rebentischia massalongii are new for Russia, 23 species are new for Caucasus, 25 species for the North Caucasus, 164 species for the Central Caucasus and 225 species are new for the Stavropol Territory.