Occurrence of Psilocybin and Baeocystin in the genus Inocybe (Fr.) Fr
Persoonia - Molecular Phylogeny and Evolution of Fungi , Volume 12 - Issue 4 p. 469- 473
The presence of psilocybin and its monomethyl analogue baeocystin is for the first time demonstrated in five taxa of the genus Inocybe, viz. I. coelestium, I. corydalina var. corydalina, I. corydalina var. erinaceomorpha, I. haemacta and I. aeruginascens. These taxa are characterized by a glaucous coloration of the stipe. A sixth taxon, I. calamistrata, which also has a blue-green stipe was found to be exempt of psilocybin and other methylated tryptamines. Negative results were also obtained for other Inocybes. Muscarin is absent in the psilocybincontaining species. However, no relation between taxonomic position and the presence of either compound seems to exist.
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Stijve, T, Klán, J, & Kuyper, Th.W. (1985). Occurrence of Psilocybin and Baeocystin in the genus Inocybe (Fr.) Fr. Persoonia - Molecular Phylogeny and Evolution of Fungi, 12(4), 469–473.