Scientific name: Boletus felleus Bull.
Synonym: Tylopilus felleus (Bull .: Fr.) P. Karst.
Vulgar names: fake Boleto - Gall boletus
Hat: 5-13 cm, first hemispherical then flattened, smooth and fleshy, from yellow to brown more or less dark.
tubules: long, first white then pink.
Pori: small, rounded or angular, first white then pinkish tending to blackish.
Stem: 8-15 x 2-5 cm, robust, enlarged at the base, of a color similar to the hat, with a brownish-yellow pattern.
Meat: pinkish white, brown under the cuticle; very bitter.
Boletus felleus(photo www.nagrzyby.pl)
Edibility, habitat and observations
Relationship with the surrounding plant environment: symbiote mushroom.
It is found in coniferous and deciduous forests, in summer-autumn.
The very bitter taste of the meat makes it inedible (the name derives from the bitter taste of gall).