| Noun | 1. | Gastroboletus - a genus of fungi belonging to the family Secotiaceae; they resemble boletes but the spores are not discharged from the basidium fungus genus - includes lichen genera family Secotiaceae, Secotiaceae - a family of fungi that have a stalk and cap and a wrinkled mass of tissue (the gleba) where spores are produced; are often dismissed as misshapen forms of other fungi Gastroboletus scabrosus - a dingy yellow brown fungus with a rough stalk that superficially resembles a bolete Gastroboletus turbinatus - a fungus with a cap that can vary from red to dark brown; superficially resembles a bolete |