Boletellus is a genus of fungi in the family Boletaceae. The genus has a widespread distribution, especially in subtropical regions, and contains about 50 species. The genus was first described by American mycologist William Alphonso Murrill in 1909. The genus name means `small Boletus`. According to Murrill`s definition of the genus, species o...... Found on http://en.wikipedia.org/wiki/Boletellus