“…As far as it is currently known, this trimethylammonium analog of psilocybin has only been reported to occur in the hallucinogenic species Inocybe aeruginascens Babos. [13,21] Psilocybe semilanceata is the best studied psychoactive mushroom species in the world [1,14,18,19,17,22,23] and is known to contain psilocybin and baeocystin (Table 1). Previous investigations in 1994 have shown that the use pure methanol yielded the authentic indole derivatives from dried mushrooms and the use of aqueous solvents resulted in hydrolysis of psilocybin and baeocystin to give psilocin.…”