OREGON STATE UNIVERSITY IMAGE: COMPOSITE IMAGE SHOWS THE DIVERSITY OF MUSHROOMS FROM THE GENUS PSILOCYBE THAT CONTAIN PSILOCYBIN. BASIDIOMATA OF (A) PSILOCYBE SERBICA (JONAGRUSKA, CC-BY-SA 3.0), (B) P. MESCALENROENSIS (ALAN ROCKEFELLER, CC BY-SA 4.0), (C) P. CUBENSIS (RICARDO ARREDONDO, CC BY-NC), (D) P. OVOIDEOCYSTIDIATA (SHROOMYDAN, CC-BY-SA 3.0), (E) P. ALLENII (ALAN ROCKEFELLER, CC-BY-SA 3.0), (F)...