Cyanoboletus Gelardi, Vizzini & Simonini
The genus Cyanoboletus Gelardi, Vizzini & Simonini was erected in 2014 to accommodate three existing species that were phylogenetically shown as a clade distinct from Boletus L. (Wu et al. 2014; Vizzini 2014). It is typified by the European Cyanoboletus pulverulentus (Opat.) Gelardi, Vizzini&Simonini. All three species exhibit an intense bluing colour reaction in the flesh when exposed to air, which, although not unique to the group, is a distinctive field character uniting them. They associate with both coniferous and broadleaf trees worldwide. According to Species Fungorum (www. speciesfungorum. org) and this report, five species are currently accepted for the genus. The phylogenetic tree for Cyanoboletu is presented in Fig. 1.
Fig. 1 Phylogenetic placement of the new species Cyanoboletus hymenoglutinosus. a Best maximum likelihood circle phylogram recovered using RAxML of an LSU dataset including the new species Cyanoboletus hymenoglutinosys (DC14-010) and the alignment of Wu et al. (2014). Tree is rooted with Suillus spp. (HKAS57622 and HKAS57748), following the topology of Wu et al. (2014). The clade containing C. hymenoglutinosus is magnified to the left. Numbers on branches are percent nonparametric bootstraps. b Best maximum likelihood circle phylogramrecovered using RAxML of an ITS dataset including the new species Cyanoboletus hymenoglutinosys (DC14-010) and the 100 best hits on GenBank identified using blastn. Tree is arbitrarily rooted using Xerocomus badius. The Cyanoboletus clade containing C. hymenoglutinosus is magnified at right. Numbers on branches are percent nonparametric bootstraps.
Species