Are psychedelic mushrooms legal in California?

There are two different kinds of psychoactive mushrooms in the US, psilocybin containing mushrooms and ibotenic acid/muscimol contain mushrooms (Amanita/fly agaric mushrooms)

Psilocybin mushrooms are not specifically named in the U.S. federal scheduling system, however their two primary active chemicals Psilocybin and Psilocin are both Schedule I in the United States. This means they are illegal to manufacture, buy, possess, or distribute (sell, trade or give) without a DEA license. Fresh and dried psilocybin mushrooms are considered containers of Psilocybin and Psilocin, making them illegal to possess as well.

Amanita mushrooms are unscheduled meaning they're legal to cultivate, distribute and possess without a license or prescription.