mushroom poisoning

mushroom poisoning fungal poisoning caused by ingestion of certain mushrooms (fungal organisms), most commonly Amanita phalloides and Amanita muscaria and related species. Symptoms, caused by toxic peptides, may include severe abdominal pain, vomiting, cold sweat, diarrhea, and excessive thirst; they appear 8 to 12 hours after ingestion. Damage occurs largely in the liver and kidneys. Some mushrooms contain substances that produce hallucinatory states, e.g., Psilocybe mexicana (see hallucinogenic drug ; ergot ). Occasional outbreaks of poisoning from eating canned mushrooms are not caused by poisonous mushrooms but by botulism resulting from improper canning methods.

mushroom (mush-room) n. the spore-producing body of various fungi. Great care must be taken in identifying edible mushrooms, as many species are poisonous, including Amanita phalloides (death cap) and A. muscaria (fly agaric).

toadstool A loose term for any umbrella-shaped fungal fruit body, or for any such fruit body that is inedible or poisonous. Compare mushroom.