Integrative taxonomic studies of macrofungal diversity in the Brijuni National Park (Istria County, Croatia) led to discovery a second species Inocybe (Agaricales, Inocybaceae) new science. istriaca sp. nov. is described on basis morphological, ecological, and multigene phylogenetic analyses, its placement within family Inocybaceae discussed. The combination most important morphological charact...