Leccinellum Bresinsky & Manfr. Binder
In the family Boletaceae (Basidiomycota, Agaricomycetes, Boletales), leccinoid members (boletes with scabrous stipe surfaces) are some of the dominant ectomycorrhizal fungi that associate with coniferous and broadleaf trees in the Himalayas. Leccinellum was segregated from Leccinum to accommodate taxa with a pileipellis composed of a palisade of swollen hyphal tips and a yellow hymenophore, but not including three taxa with similar features, now belonging to Hemileccinum Šutara (Šutara 2008), based on phylogenetic evidence (Bresinsky and Besl 2003). Together, these two new genera represent Leccinum sect. Luteoscabra Singer, who separated these boletes with scabrous stipe surfaces but yellow hymenophores from the remainder of Leccinum (Singer 1947). According to Species Fungorum (www. speciesfungorum.org) and this report, 9 species are currently accepted for the genus. The phylogenetic tree for Leccinellum is presented in Fig. 1.
Fig. 1 Phylogenetic placement of the new species Leccinellum indoaurantiacum a Best maximum likelihood circle phylogram recovered using RAxML of an LSU dataset including the new species Leccinellum indoaurantiacum (DC 14-019) 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 L. indoaurantiacum 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 Leccinellum indoaurantiacum (DC14-019) and related leccinoid taxa. Tree is rooted with Harrya chromapes following the topology of Wu et al. (2014). The clade containing L. indoaurantiacum is magnified to the right. Numbers on branches are percent nonparametric bootstraps.
Species