Phylogram generated from neighbour-joining analysis based on ITS-rDNA sequences: Phylogenetic relationships inferred from neighbour-joining analysis of ITS sequences of 25 taxa. The optimal tree with the sum of branch length = 0.79320854 is shown. The percentages of replicate trees in which the associated taxa clustered together in the bootstrap test (1,000 replicates) are shown next to the branches. The tree is drawn to scale, with branch lengths in the same units as those of the evolutionary distances used to infer the phylogenetic tree. The novel species having GenBank numbers KX364694 (ITS-rDNA) is shown in bold and blue font. Boletus edulis (European material with GenBank numbers AY278764) was considered as the out group. Evolutionary analysis was conducted in MEGA6 (Tamura 2013).