Death Cap. Deadly poisonous. One mushroom can kill an adult. Key traits • Cap: Greenish-olive, yellow-green, or sometimes pale/whitish; smooth, not scaly • Gills: Pure white, never turn brown • Spore print: White • Stem: White, often smooth • Ring: White, skirt-like • Volva (BIG ONE): Bulb at the base enclosed in a white sac (volva) — often buried in soil • Smell: Mild or sweet when fresh, sickly later True Parasol Mushroom. Edible (when correctly identified), but commonly confused with toxic sp