Amanita muscaria
This poisonous species is commonly known as the Fly Agaric and has a long and ancient history worldwide.
In Illinois, the color of the spotted cap ranges from golden yellow to orange. Elsewhere, the cap can appear crimson red. All species of Amanita emerge from an egg-like sac known as a universal veil just below the soil surface. The flecks seen on the cap are split remnants of the veil which encapsulated the immature mushroom. One can observe other traces of this sac by carefully excavating the base of the mushroom.
Brookhaven, Mississippi