I have done field work in the Mazatec region since 2009, and in all these years, I have only seen two types of psilocybin mushrooms for sale in the city of Huautla de Jiménez. However, the article " Seeking the Magic Mushroom " (1957) describes the use of at least seven different species of psychoactive mushrooms in Mexico.

Source: Neuroscience News A small-scale study conducted by researchers at Yale University reveals psilocybin, a naturally occurring psychedelic compound in "magic mushrooms", appears to be effective in the treatment of migraine disorders. Previous studies have shown psilocybin to show promise in the treatment of migraines and cluster headaches, but most of the results have been anecdotal.