Crystallographic hallucinations Acta Crystallographica Section C Structural Chemistry January 27, 2022 Brian H. Toby 1 citation A powder diffraction study of psilocybin's structural forms questions whether any other anhydrous polymorphs of the compound could exist. The research provides detailed crystallographic analysis, suggesting that the known forms may be exhaustive. DOI: 10.1107/s2053229622000511 Full text Plant-based medicinal research