Suillaceae

The Suillaceae are a family of fungi in the order Boletales (suborder Suillineae), containing the boletus-like "Suillus", the small truffle-like "Truncocolumella", as well as the monotypic genus "Psiloboletinus". As of 2008, there are 54 species in the family. "Gastrosuillus", once considered a distinct genus, has been shown with molecular analysis to be a recent evolutionary derivative of "Suillus". "Fuscoboletinus", described by Pomerleau and Smith in 1962, has also been subsumed into "Suillus".