New Candidate for Soma, A Novel Hypothesis Figshare January 1, 2014 Maio, Paola Di Ethnobotanical evidence suggests that a plant called San Pedro, found in the Americas, may be a previously unrecognized candidate for the ritual substance Soma. The hypothesis is based on observations of the plant's traditional use and properties. DOI: 10.6084/m9.figshare.894337.v2 Soma Computer science Psychology Neuroscience