title: Diromma dirinellum and Ocellomma picconianum (Roccellaceae, Ascomycota) in the lichen flora of Russia
abstract: The genus Diromma, represented by the Mediterranean species D. dirinellum is reported for the first time from Russia, based on the materials collected in the North-Western Caucasus in the Utrish Reserve on the Abrau Peninsula (Krasnodar Territory). Additionally, a second Mediterranean species, Ocellomma picconianum, was recorded for the first time in the Caucasus. Both species have a distribution that is primarily restricted to the Mediterranean basin. As in the Mediterranean region, in the Abra
journal: Turczaninowia