Amanita phalloides or death cap - the only mushroom which consumption - it is almost guaranteed death. Amanita phalloides poisoning is characterized by the symptoms appear after a long time (from 6-12 to 30 hours) after consuming mushrooms in food when developing irreversible changes of internal organs - liver, kidneys and heart. In humans, there are intense abdominal pain, vomiting, frequent diarrhea, jaundice. After the onset of symptoms probability of death is very high because of lightning toxic hepatitis and cardiovascular disease.
Glad I don't walk around eating random mushrooms.