Boletus is a genus of mushroom, comprising over 100 species. The genus Boletus was originally broadly defined and described by Elias Magnus Fries in 1821, essentially containing all fungi with pores. Since then, other genera have been defined gradually, such as Tylopilus by Petter Adolf Karsten in 1881, and old names such as Leccinum have been resurrected or redefined.
Some mushrooms listed in older books as members of the genus have now been placed in separate genera. These include such as Boletus scaber, now Leccinum scabrum, Tylopilus felleus, Chalciporus piperatus and Suillus luteus.
The name is derived from the Latin term bōlētus 'mushroom' from the Ancient Greek βωλιτης, ultimately from bōlos/βωλος 'lump' or 'clod'. However, the βωλιτης of Galen is thought to have been the much prized Amanita caesarea. In Lithuania and Poland Boletus is called "The King Of Mushrooms".
Read more about Boletus: Edibility