 The false morel produces the poison gyromitrin which is an organic derivative of hydrazine that is converted to monomethylhydrazine by metabolic processes.Even the most popular edible "button" mushroom "Agaricus bisporus" produces organic hydrazine derivatives, including agaritine, a hydrazine derivative of an amino acid, and gyromitrin.The name "hydrazine" was coined by Emil Fischer in 1875; he was trying to produce organic compounds that consisted of mono-substituted hydrazine.