Amanita bisporigera

Amanita bisporigera is a deadly poisonous species of fungus in the family Amanitaceae. It is commonly known as the eastern North American destroying angel or just as the destroying angel. The fruit bodies are found on the ground in mixed coniferous and deciduous forests of eastern North America south to Mexico. The mushroom has a smooth white cap that can reach up to 10 cm across, and a stipe, up to 14 cm long by 1. 8 cm thick.

About Amanita bisporigera in brief

Amanita bisporigera is a deadly poisonous species of fungus in the family Amanitaceae. It is commonly known as the eastern North American destroying angel or just as the destroying angel. The fruit bodies are found on the ground in mixed coniferous and deciduous forests of eastern North America south to Mexico. The first symptoms of poisoning appear 6 to 24 hours after consumption, followed by symptoms of liver and kidney failure, and death after four days or more. The mushroom has a smooth white cap that can reach up to 10 cm across, and a stipe, up to 14 cm long by 1. 8 cm thick. The bulbous stipe base is covered with a membranous sac-like volva. The white gills are free from attachment to the stalk and crowded closely together. As the species name suggests, A.  bisporiger a typically bears two spores on the basidia, although this characteristic is not as immutable as was once thought. The fungus has also been found in pine plantations in Colombia. It belongs to section Phalloideae of the genus Amanita, which contains some of the deadliest Amanita species, including A. phalloides and A virosa. In 2005, Zhang and colleagues performed a phylogenetic analysis based on the internal transcribed sequences of several white-bodied toxic species, most of which are found in Asia. Their results support a clade containing A subjunquillea var. alba, A exitialis, and A Exitialis var.

var. alba. The Guangzhou destroying angel has two-spored basidia like A bisporigersa, like A bis porigera, and sometimes a tan-colored center with a cream or cream tint in the center. The species was first described scientifically in 1906 by American botanist George Francis Atkinson in a publication by Cornell University colleague Charles E. Lewis. In 1944, William Murrill described the species Amanita vernella, collected from Gainesville, Florida; that species is now thought to be synonymous with A bis porigersa after a 1979 examination of its type material revealed basidia that were mostly 2- spored. In 1902, a poorly known taxon originally described from the United States in 1902 by Charles Horton Peck, is considered by Amanita authority Rodham Tulloss to be shorthand for A   BisporigerA. This classification has been upheld with phylogenetic analyses, which demonstrate that the toxin-producing members of section Phaloideae form aClade—that is, they derive from a common ancestor, which is Amanita that is a member of the Amanita genus. A.bisporiggera was described as a new species in 1906, but this genus is now considered synonymous with Amanita. It can be difficult to distinguish from other white amanitas based on visible field characteristics, such as the equally deadly A. virosa and A.verna. It ranges in shape from egg-shaped to convex to somewhat convex.

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