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Ibotenic acid or (S)-2-amino-2-(3-hydroxyisoxazol-5-yl)acetic acid, also referred to as ibotenate, is a chemical compound and psychoactive drug which occurs naturally in Amanita muscaria and related species of mushrooms typically found in the temperate and boreal regions of the northern hemisphere.
Amanita muscaria, commonly known as the fly agaric or fly amanita, [5] is a basidiomycete of the genus Amanita. It is a large white- gilled , white-spotted, and usually red mushroom. Despite its easily distinguishable features, A. muscaria is a fungus with several known variations, or subspecies .
A number of proposals were made, including one in 1968 by the American banker R. Gordon Wasson, an amateur ethnomycologist, who asserted that soma was an inebriant but not cannabis, and suggested fly-agaric mushroom, Amanita muscaria, as the likely candidate. Since its introduction in 1968, this theory has gained both detractors and followers ...
Amanita muscaria var. formosa, known as the yellow orange fly agaric, is a hallucinogenic and poisonous [1] basidiomycete fungus of the genus Amanita.This variety, which can sometimes be distinguished from most other A. muscaria by its yellow cap, is a European taxon, although several North American field guides have referred A. muscaria var. guessowii to this name. [2]
As with other Amanita muscaria, the inzengae variety contains ibotenic acid, and muscimol, two psychoactive constituents which can cause effects such as hallucinations, synaesthesia, euphoria, dysphoria and retrograde amnesia. The effects of muscimol and ibotenic acid most closely resemble that of any GABAergic compound, but with a dissociative ...
Amatoxin is the collective name of a subgroup of at least nine related cyclic peptide toxins found in three genera of deadly poisonous mushrooms (Amanita, Galerina and Lepiota) and one species of the genus Pholiotina. [1]
Amanita muscaria var. muscaria, known as the yellow fly agaric, is a variety of Amanita muscaria. Rodham Tulloss, and other experts on fungi, limit the habitat of this fly agaric variation to Eurasia and western Alaska. [1] [2]
However, Galerina contains amatoxins, the same poison found in the deadly Amanita species. Another case reports kidney failure following ingestion of Cortinarius orellanus, [21] a mushroom containing orellanine. It is natural that accidental ingestion of hallucinogenic species also occurs, but is rarely harmful when ingested in small quantities.