Pseudobaorangia (Boletaceae, Boletales), a new genus for Boletus lakhanpalii

Bolete specimens collected in Baima Snow Mountain Nature Reserve, Yunnan Province, were identified as Pseudobaorangia lakhanpalii, based on morphological and phylogenetic analyses. The ITS sequences of our collections exhibited a high similarity with Boletus lakhanpalii (99.53 % for KEF 13271 and 99.44 % for KEF 13272). However, because of limited molecular data and complex taxonomic relationships of Boletaceae, the phylogenetic placement of B. lakhanpalii could not be clearly determined.

This study conducted a phylogenetic analysis by combining nrLSU, RPB 2 and TEF 1 - α genes, and the results showed that this species has a close phylogenetic relationship with Baorangia, sharing some morphological characteristics, but also having several highlighting differences. Therefore, a new genus Pseudobaorangia is proposed with P. lakhanpalii as the type species and its detailed description is provided.