U.S. Army Corps of Engineers botanists discovered a new site for the rare Pruitt's Amanita mushroom at Fern Ridge Reservoir west of Eugene, Ore., recently. Soils and botany student intern Leanna Van Slambrook spotted some white mushrooms popping out of the charred, soggy ground on the southwest side of the reservoir after a prescribed burn and remembered that a rare Amanita had been found after a burn a few years back.