Newbold, R. ., De Silva, S., & Terry, M. (2020). Correlation of mescaline concentrations in Lophophora williamsii (Cactaceae) with rib numbers and diameter of crown (U.S.A.). Journal of the Botanical Research Institute of Texas, 14(1), 103–120. https://doi.org/10.17348/jbrit.v14.i1.901