Reference
Dangerous look-alikes
How to tell a psilocybin mushroom from something that can hurt you. The character that settles it on its own is marked decisive.
The fastest check is a spore print. Every deadly mushroom here prints rust-brown; every psilocybin species prints purple-brown or black. Leave a cap gill-side down on paper under a glass for a few hours. A rusty print means no, whatever else it looks like.