Boletus
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".