New mescaline concentrations from 14 taxa/cultivars of Echinopsis spp. (Cactaceae) (“San Pedro”) and their relevance to shamanic practice
Keywords: AUFS, absorbance units full scale; C, centigrade; ca., circa (approximately); cf., confer (compare); cm3, cubic centimeter; CAS, Chemical Abstracts Service; Cl, chloro; CSA 1, Schedule 1 in the US Controlled Substances Act; cv., cultivar; E., Echinopsis;