Boletus aereus

Boletus aereus, commonly known as the queen bolete, dark cep, or bronze bolete, is a species of fungus in the family Boletaceae. Described in 1789 by French mycologist Pierre Bulliard, it is closely related to several other European boletes, including B. reticulatus, B. pinophilus, and the popular B. edulis. Some populations in North Africa have in the past been classified as a separate species, B. mamorensis, which has been shown to be phylogenically conspecific to B. aereus and is now regarded as a synonym. The fungus produces spore-bearing fruit bodies above ground in summer and autumn. The fruit body has a large dark brown cap, which can reach 30 cm (12 in) in diameter. Like other boletes, B. aereus has tubes extending downward from the underside of the cap, rather than gills. The spores escape at maturity through the tube openings, or pores. The pore surface of the fruit body is whitish when young, but ages to a greenish-yellow. The squat brown stipe, or stem, is up to 15 cm (6 in......read more on Wikipedia.