Psilocybe mexicana is one of the many species of mushroom containing, in various ratios, the psychoactive indole alkaloids psilocybin, psilocin, baeocystin and other related compounds known as tryptamines. World-wide as many as 130 species have been identified in about a dozen genera. The psilocybes (the "liberty cap", Psilocybe semilanceata, and the Psilocybe Cubinsis) make up a large and well known subset of the family of Magic Mushrooms, while Panaeolus subbalteatus, and Amanita muscaria, or Fly Agaric tend to be less well known.