Amanita

a genus of fungi that contains several species of poisonous toad-stools, including A. phalloides (death cap), A. pantherina (panther cap), and A. muscaria (fly agaric). They produce toxins that cause abdominal pain, violent vomiting, and continuous diarrhoea. In the absence of treatment death occurs in approximately 50% of cases, due to severe liver damage.