Occurrence of Psilocybin and Baeocystin in Fruit Bodies of Pluteus salicinus.

Using HPLC and TLC, psilocybin and baeocystin but not psilocin were found in extracts of dried fruit bodies of PLUTEUS SALICINUS. Caps contain more psilocybin than stems. The amount of psilocybin varies and was as high as 1.57% in the caps. Urea was also detected. This substance is virtually exclusively localized in the caps. Baeocystin and tryptophan were also found only in the caps. There was a correlation between the content of psilocybin and that of urea.