A new species of Xerocomus (Boletaceae) from India

Xerocomus longistipitatus, collected from a broadleaf forest of the state of Sikkim, is described here as a novel species. It is typically characterized by pileate-stipitate basidiomata with a long stipe, a dry, brown pileus, presence of a sterile flap at the pileus margin, adnate to subdecurrent tubes, rounded, angular or irregular pores, a yellow context turning pale yellow then greyish turquoise on exposure and basidiospores with bacillate surface-ornamentations. Morphological description, illustrations, ITS-based phylogenetic placement and comparison with the allied taxa are given for this new species.