And, then there are false morels, easily distinguished, but be aware of them. False morels are more like an unfocused version of a real morel:

Morchella, left, Gyromitra, right. False morels have monomethyl hydrazine, aka rocket fuel. Always cook mushrooms for two reasons: kill bacteria, and for nutrition reasons. Mushrooms need to be cooked to release the protein from the chitinous cell wall. NEVER eat a wild mushroom before conclusively identifying it.