Foraging
Muscaria and pantherina, side by side
Amanita muscaria and Amanita pantherina grow in the same woods, at the same time of year, under the same trees. One of them puts people in hospital every season. This post exists because a foraging feed without it is irresponsible, and because the features that separate them are not the ones people tend to look at.
The cap colour is the feature everyone knows and the least reliable one. Muscaria is red to orange, pantherina is brown to tan, and both fade with rain and age until a washed-out muscaria and a pale pantherina can look very alike from above. If you are identifying from the cap alone, you are guessing.
Look at the base. Muscaria has a bulbous base with rings of tissue that look like a stack of scaly bracelets, and the remains of the universal veil sit on the cap as loose warts. Pantherina has a more distinct collar-like rim at the top of the bulb, often described as a rolled sock, and its warts are smaller, whiter and more evenly spread.
The photographs in this post show both species as a button, a young cap, a fully open cap and an old, rain-washed one. Look at the base in every photo. Then look at the base again. The cap will lie to you and the base will not.
If you are not certain, you do not have an identification, you have a hope. Leave it in the ground. Foraging posts on this site are reviewed by staff before they go up for exactly this reason, and we would rather reject a hundred good ones than publish one that gets someone hurt.