Common Names: Boletes
This is a catch-all for unidentified fungi in the Boletaceae family. Boletes are primarily characterized by developing their spores in small pores on the underside of the mushroom, instead of gills. Most species in Boletaceae produce large fleshy mushrooms with a central stipe. The spore print colors are commonly olivaceous (yellowish-green), yellowish, brownish, or vinaceous (red-wine colored). In many species, flesh that is bruised or cut will turn blue, a result of the oxidation of pulvinic acid derivatives, like variegatic, xerocomic, and atrotomentinic acid. Many boletes cannot be properly identified by photograph alone and require chemical and/or microscopic analysis.