Amanita

About

The genus Amanita contains about 600 described species of agarics, including some of the most toxic known mushrooms found worldwide, as well as some well-regarded edible species. The genus is responsible for 95% of fatalities resulting from mushroom poisoning, with the death cap accounting for 90% of fatalities every year. The most potent toxin synthesized by this genus is α-Amanitin.

Summary from Wikipedia