An Unexpectedly High Number of New (Boletaceae) Species From Northern and Northeastern Thailand.

is a poroid genus in Boletaceae that typically has chocolate brown to reddish brown or purplish brown basidiomata with a finely scaly stipe and produces a reddish brown spore deposit. During the survey on diversity of boletes in Northern and Northeastern Thailand, several collections were obtained. Combined evidence from morphology and phylogenetic analyses of a combined three-gene data set (6, 1 and 2) of the collections along with selected Boletaceae in the group indicated that Thai collections represent seven new species. The analyses also indicated that belongs in . Therefore, the transfer of to is proposed. Full descriptions and illustrations of the seven new species and are presented in this study. With the seven new species and the new combination, eight of the eleven described species are known to occur in Northern and Northeastern Thailand, whereas only one species is known from each of two continents, the Americas and Australia.