if you eat this mushroom, let me know within few hours how it tastes, because within a few days, you're DEAD! it is a white variety of Amanita phalloides, the world's most toxic mushroom! how to recognize: - the cap is usally yellowish to olive green: white is more confusing; the gills are always white; -under the cap, there is a small ring; -and most important: at the stem origin, there is a volva, covering a pseudobulb; when broken, it becomes difficult to recognize; more info: Amanita phalloides, commonly known as the death cap, is a deadly poisonous basidiomycete fungus, one of many in the genus Amanita. Widely distributed across Europe. In some cases, the death cap has been introduced to new regions with the cultivation of non-native species of oak, chestnut, and pine. These toxic mushrooms resemble several edible species (most notably caesar's mushroom and the straw mushroom) commonly consumed by humans, increasing the risk of accidental poisoning. A. phalloides is one of the most poisonous of all known toadstools. It has been involved in the majority of human deaths from mushroom poisoning,[1] possibly including the deaths of Roman Emperor Claudius in AD 54 and Holy Roman Emperor Charles VI in 1740. Pope Clement VII died in 1534 after eating this mushroom. It has been the subject of much research, and many of its biologically active agents have been isolated. The principal toxic constituent is α-amanitin, which damages the liver and kidneys, often fatally.