Tuber aestivum Vittadini 1831 - "(Black) summer truffle"
Usually to be found May to December mainly under deciduous trees in almost all of Europe. The fruiting body is usually 2-8cm large. The peridia is brown-black to black, with pyramid-shaped, strong, non-detachable warts. When young, the Gleba is whitish, then changes visibly until it is ripe, where it appears light brown to dark brown, but always with numerous white veins. At the beginning of the season the unripe fruiting body is odourless, with increasing maturity it becomes hazelnut-like, with earthy and leathery aromas, but with age it becomes the so-called "odeur de bergerie", smelling of straw or stable.
The taste is pleasantly fungal with a fine hazelnut flavour.