Micarea doliiformis (Pilocarpaceae, lichenized Ascomycota) – a first record for Russia and Asia from Dagestan (East Caucasus)

Micarea doliiformis is reported as new to Russia and Asia from the broad-leaved floodplain forest of the Samur River delta. Our record considerably extends the eastern range of the species from its previously known Western European-Atlantic distribution. A detailed description of the specimen with ecological preferences is given. The main difference from similar species with white-tomentose pycnidia (Micarea hedlundii and M. tomentosa) is larger, non-micareoid photobiont and the mostly biguttulate conidia which are wider at one end. Other morphological, anatomical, chemical and ecological differences between similar species are discussed.