Hohenbuehelia incrustata sp. nov., a new species of Hohenbuehelia (Pleurotaceae, Agaricales) from Northwestern Siberia, Russia

While examining the materials of fleshy fungi surveys in the Khanty-Mansi Autonomous Okrug—Yugra (Northwestern Siberia, Russia), we studied two collections of Hohenbuehelia (Pleurotaceae, Agaricales) with a combination of morphological features, including distinctly heavily encrusted cystidia, that made it impossible to reliably assign these specimens to particular species; molecular phylogenetic analysis revealed them to be a distinct taxon forming a well-supported branch within Hohenbuehelia, sister to H. mustialensis. This paper is devoted to the morphological and ecological description of Hohenbuehelia incrustata and its phylogenetic position among the currently described species of this genus with publicly available ITS sequences.