Amanita

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 (and many species of unknown edibility). 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. The genus also contains many edible mushrooms, but mycologists discourage mushroom hunters from selecting any of these for human consumption due to the potentially lethal consequences of misidentification. Nonetheless, in some cultures, the larger local edible species of Amanita are mainstays of the markets in the local growing season. Samples of this are Amanita zambiana and other fleshy species in central Africa, A. basii and similar species in Mexico, A. caesarea and the "Blusher" A. rubescens in Europe, and A. chepangiana in Southeast Asia. Other species are use......read more on Wikipedia.