Boletus rubriceps , a new species of porcini from the southwestern USA

[摘要] The porcini ( Boletuss.s.) are an economically important group of ectomycorrhizal fungi whose basidiocarps have a white tube layer at first, reticulate stipe, and white flesh.  The type species,B. edulis , is widespread and morphologically variable, with very little genetic variation from Eurasia to North America.  Here we describe a new species of porcini,Boletus rubriceps,from the southwestern USA. Morphological characters and molecular data (ITS and LSU) distinguish this species from the EurasianB. edulisand North AmericanB. edulisvar.grandedulis .

[学科分类] 植物学

[关键词] Boletaceae;Boletus rubriceps;molecular phylogenetics;new species;taxonomy