The Aztecs used the Psilocybe Mexicana Jalisco mushroom in their rituals and called it “flesh of the gods”.  Albert Hoffman used it in the first isolation of psilocybin and psilocin. P. Mexicana Jalisco mushrooms are one of the rare mushrooms that produce Psilocybin enriched sclerotia also referred to as“magic truffles”.
Sclerotia are small nuggets of hardened fungal mycelium that grow under the soil and contain food reserves.  It is a survival mechanism for the fungi. If conditions get bad and the surrounding mycelia network gets damaged or dies, the sclerotia lies dormant for the conditions to be favorable again and then sends out new mycelium from the sclerotia to continue the life cycle.   Please note, in nature, the Jalisco strain is a poor sclerotia producer but an excellent fruiter. 
Spieces: Psilocybe Mexicana
Classification: Psychedelic/Hallucinogenic
Cultivation Difficulty: Moderate
Substrates: Rye berries, Equine dung, Rye grass seed
Temperature: Subtropical, 65-80 degrees; 75-78 degrees
Strain Origin: Guadalajara, Jalisco, Mexico