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The genus Amanita was first published with its current meaning by Christian Hendrik Persoon in 1797. [1] Under the International Code of Botanical Nomenclature, Persoon's concept of Amanita, with Amanita muscaria (L.) Pers. as the type species, has been officially conserved against the older Amanita Boehm (1760), which is considered a synonym of Agaricus L. [2]
Amatoxins, the class of toxins found in these mushrooms, are thermostable: they resist changes due to heat, so their toxic effects are not reduced by cooking. Amanita phalloides is the most poisonous of all known mushrooms. [6] [7] [8] It is estimated that as little as half a mushroom contains enough toxin to kill an adult human. [9]
Amanita vaginata, commonly known as the grisette or the grisette amanita, [1] is an edible mushroom in the fungus family Amanitaceae.The cap is gray or brownish, 5 to 10 centimetres (2 to 4 inches) in diameter, and has furrows around the edge that duplicate the gill pattern underneath.
Cross section of fruiting body, showing pigment under skin and free gills. A large, conspicuous mushroom, Amanita muscaria is generally common and numerous where it grows, and is often found in groups with basidiocarps in all stages of development. Fly agaric fruiting bodies emerge from the soil looking like white eggs.
The following is a list of species of the agaric genus Amanita.This genus contains over 500 named species and varieties and follows the classification of subgenera and sections of Amanita outline by Corner and Bas; Bas, [1] [2] as used by Tulloss (2007) and modified by Redhead & al. (2016) [3] for Amanita subgenus Amanitina and Singer for Amanita section Roanokenses.
The other characteristics of the other parts of its body are as follows: Cap : The cap is convex or sometimes shield-shaped, becoming flat with a fairly distinctly lined margin. [ 4 ] The cap may vary in lengths of 2–8 centimetres (1–3 inches).
Amanita aestivalis, commonly known as the white American star-footed amanita, [2] is a species of fungus in the mushroom family Amanitaceae. The cap of the white fruit body is 5 to 8.5 centimetres (2 to 3 + 1 ⁄ 4 inches) in diameter. It sits atop a stem that is 8.5 to 16 cm (3 + 1 ⁄ 4 to 6 + 1 ⁄ 4 in) long. The entire fruit body will ...
At one stage this fungus was known as A. pulchella, in a small genus that all grisettes (ringless Amanita species) were placed in. This genus later sunk back into Amanita. Unlike most ringless Amanita, which are part of Amanita section Vaginatae (e.g. A. vaginata), A. xanthcephala belongs to Amanita section Amanita (e.g. A. muscaria). [1]