Analysis of ten fruit bodies of the mushroom Inocybe aeruginascens found that its content of the indole derivative aeruginascin was comparable to the amounts of psilocybin or baeocystin. The levels of psilocybin, baeocystin, and aeruginascin were correlated. Aeruginascin appears to alter the pharmacological effects of psilocybin, consistently producing a euphoric mood when the mushrooms are ingested.
The mushroom species Inocybe aeruginascens contains the psychoactive alkaloids psilocybin and baeocystin, along with aeruginascin (a compound of unknown structure), in both caps and stipes. The amounts of psilocybin and baeocystin varied among mushrooms collected from the same location and of similar mass. No correlation was found between mushroom mass and the content of either alkaloid. However, there was a strong correlation between the levels of psilocybin and baeocystin. The location where the mushrooms grew did not appear to relate to the content of these indole derivatives.
Psilocybin and baeocystin, but not psilocin, were detected in dried fruit bodies of the mushroom Pluteus salicinus using HPLC and TLC. Caps contained more psilocybin than stems, with psilocybin levels reaching up to 1.57% in caps. Urea was also found, almost exclusively in the caps, along with baeocystin and tryptophan, which were also limited to the caps. A correlation existed between psilocybin and urea content.