BOLETUSES

Noun

boletuses

plural of boletus

Source: Wiktionary

BOLETUS

Bo*le"tus, n. Etym: [L. boletus, Gr. .] (Bot.)

Definition: A genus of fungi having the under side of the pileus or cap composed of a multitude of fine separate tubes. A few are edible, and others very poisonous.

Source: Webster’s Unabridged Dictionary 1913 Edition