Occurrence of psilocybin and psilocin in Psilocybe pseudobullacea (Petch) Pegler from the Venezuelan Andes

Abstract Using thin-layer Chromatographic and spectroscopic (UV) methods two Psilocybe species from the Venezuelan Andes were analysed for the hallucinogens psilocybin and psilocin. These species are: P. montana (Pers. ex Fr.) Kumm. and P. pseudobullacea (Petch) Pegler. Both hallucinogens were found in P. pseudobullacea , white P. montana was found to be exempt of these compounds.