Phytochemical analyses of Banisteriopsis caapi and Psychotria viridis.
Journal of psychoactive drugs June 1, 2005 J C Callaway, Glacus S Brito, Edison S Neves
Phytochemical analyses of 32 Banisteriopsis caapi and 36 Psychotria viridis samples collected from 22 sites across Brazil revealed wide variation in alkaloid content. All B. caapi samples contained harmine, harmaline, and tetrahydroharmine (THH). Some P. viridis samples had little or no detectable N,N-dimethyltryptamine (DMT). Leaves from one P. viridis plant analyzed over a 24-hour cycle also showed DMT variation.