Devil's Bolete
Boletus satanas

Deciduous forests, especially calcareous oak woods with limes and hazels. Summer, autumn.
Fruiting bodies stout, fleshy. Cap grows up to 30 cm across and the stem up to 10 cm thick. Cap surface matt, pale grey, without a pinkish or rosy tinge, darkening when pressed – becoming greenish-grey. Tubes yellowish, up to 3 cm long, and the pores soft red, carmine-red, greenish-bluish when pressed. Stem very thick, almost round when young, leathery-yellow near the tubes, carmine-red lower down, adorned with a net of the same red. Flesh pale, almost white, turning slightly blue when broken or cut, with a nutty taste and a specific smell. Characteristic features: cap grey, flesh turns slightly blue. Grows in small groups or singly. Inedible, mildly poisonous. Found in the vicinity of Vilnius.