Bondarzewia Singer
Bondarzewia Singer was established by Singer (1940) based on B. mesenterica (Schaeff.) Kreisel, originally described from Abies in Germany. It is a remarkable genus because the species usually have huge and imbricate basidiocarps. Some species are edible and medicinal mushrooms (Dai et al. 2009), while others are pathogens on their host trees (Dai et al. 2007). The genus is characterized by an annual growth habit, pileate basidiocarps with poroid hymenophores and it is morphologically a polypore genus. However, it has strongly amyloid and ornamented basidiospores and phylogenetic analysis showed that it belongs to Russulales (Larsson and Larsson 2003). The phylogenetic tree is presented in Fig. 1.

Fig. 1 Phylogeny of species in Bondarzewia and related species generated by maximum likelihood based on ITS + nLSU sequence data. Branches are labeled with bootstrap proportions (before the slash markers) higher than 50 % and Bayesian posterior probabilities (after the slash markers) more than 0.95. New taxa are in blue and ex-type specimens in bold.