Amanita chrysoblema

Amanita chrysoblema, with the common name American fly agaric, white variant, is a basidiomycete fungus of the genus Amanita. Although named chrysoblema, it is traditionally thought to be an Amanita muscaria variant, a group of fungi commonly known as fly agarics.

Amanita chrysoblema
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Amanitaceae
Genus: Amanita
Species:
A. chrysoblema
Binomial name
Amanita chrysoblema
G. F. Atk. in Kauffman[1]
Synonyms

Amanita muscaria var. alba Peck

A. chrysoblema is an uncommon fungus, distinguishable by an off-white to silvery-white cap with white warts. The cap has cuts on the side, but is otherwise similar to the usual fly agaric form.[2]

The fungi is poisonous[3] due to high levels of ibotenic acid and muscimol.

Taxonomy

This white fly agaric was first described by science in 1880 by Peck, who classified it as an Amanita muscaria variant as A. muscaria var. alba. In 1918, Kauffmann named it Amanita chrysoblema during a study from Michigan, but the var. alba (or var. albus) name has been used in parallel to this since then.[4]

It is possible that this Amanita is not a muscaria, or fly agaric, but a species in its own right. This issue is currently under scientific scrutiny. The muscaria classification, may stem from it being wrongly treated as a white variant of the Amanita muscaria var. flavivolvata.[4]

References
Wikimedia Commons has media related to Amanita chrysoblema.
  1. "Amanita chrysoblema - Amanitaceae.org - Taxonomy and Morphology of Amanita and Limacella". www.amanitaceae.org.
  2. Li, De-Wei (November 2005). "Release and dispersal of basidiospores from Amanita muscaria var. Alba and their infiltration into a residence". Mycological Research. 109 (11): 1235–1242. doi:10.1017/S0953756205003953. PMID 16279416.
  3. Phillips, Roger (2010). Mushrooms and Other Fungi of North America. Buffalo, NY: Firefly Books. pp. 16–17. ISBN 978-1-55407-651-2.
  4. Amanita chrysoblema


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