Boletus orientialbus, a new species with white basidioma from subtropical China

•Boletus orientialbus is described as new species from subtropical China.•The taxon has white basidioma and ellipsoid to elongate basidiospores.•Color photos and line drawings are given for the taxon.

Boletus orientialbus is described as a new species from Fujian Province, a subtropical region of China. It is morphologically characterized by its white basidioma with a white and unchanging context, white pores becoming yellow with age, a reticulate stipe, and ellipsoid to elongate basidiospores. A detailed description, color photos of fresh basidiomata, and a line-drawing of microscopic features are presented.