An elhnologkal and mycological study of the Chignahuapan región (Stateof Puebla) is presentecl. In this región diere is a church where a fungus isthe principal pan in the cult. This church was built specially for this cult.The l'ungus is Ganoderma lobnlum (Schw.) Atk., lignicole species remoteIrom the hallucinogenic fungí. However, the authors of this paper have thesuspicion oí the use of the...