boletus
noun
bo·le·tus bō-ˈlē-təs 
plural boletus or boleti bō-ˈlē-ˌtī
: any of a genus (Boletus) of boletes (such as a porcini) some of which are poisonous and others edible
Word History
Etymology
borrowed from New Latin Boletus, genus name — more at bolete
First Known Use
1601, in the meaning defined above