Taxonomy and phylogeny of Cortinarius dibaphus, new to Turkey

Cortinarius dibaphus, an uncommon to rare species in Europe where it is known mainly from Abies alba forest, is reported as a new from Turkey based on morphology and nrITS sequence analyses. It was found in the forest under Abies nordmanniana subsp. equi-trojani, which is a new host. Comprehensive description of the morphological characters, macro and microphotographs of this species are provided, and comparisons with phenologically similar and phylogenetically relat-ed species are discussed.