The genus Amanita contains more than 100 species of mushroom which are known to be poisonous for human. The most deadliest mushrooms are large, and white (A. bispongera, A.verna, A. ocreata, and A. Virosa) which are called as destroying angels and are found in the forest during summer and autumn. Some deadly mushrooms are brown or green (A. phalloides) and are found in woods in summer and early autmn. A. muscaria that is found in fields and pastures in summer, a poisonous fly agaric was used as a fly poison. The genus also has edible species, include A. caesarea, A. rubescens, and A.vaginita.