Xerocomus badius

Cap	With its smooth bay brown or chestnut coloured cap, this large bolete is instantly recognisable. When immature, the caps are downy. Growing to between 5 and 15 cm in diameter, the caps have firm, pale flesh that turns slightly blue when cut.
Tubes and Pores	At first pale yellow, the tubes terminate in large angular pores that turn blue-green when bruised. The colour change is sudden and most marked in mature specimens, and a deep blue stain is left on the hands.
Stipe	The brown stem is covered in fine cottony threads that give it a streaky appearance. there is no ring, and the stem is more or less even in diameter. Typically 2 to 3 cm in diameter, the stems of this species are usually slightly curved and vary from 5 to 15 cm in height. The flesh inside the stem is white or pale lemon and turns slightly blue when it is cut.
Spore print	Olivaceous-brown.
Odour/taste	Not distinctive.
Habitat	In mixed woodland; particularly common under beech trees.
Season	August to November.
Occurrence	A fairly common species.
Similar species	Boletus edulis, the Cep or Penny Bun Bolete, sometimes has a bay brown cap, but the reticulate net pattern on its pale stem helps to distinguish it from the Bay Bolete, Xerocomus badius.