New lichenized fungi for Russia from Dagestan (East Caucasus)
Three lichen species (Anaptychia elbursiana, A. roemeri and Megaspora rimisorediata) are reported for the first time for Russia from Dagestan. Anaptychia elbursiana is reported for the first time from North Caucasus, and Anaptychia roemeri and Megaspora rimisorediata from the Greater Caucasus. The characteristic features of the species and information on their morphology, anatomy, ecology and world distribution are given. Differences from similar species are discussed.