False death cap

Amanita citrina

Known as the false death cap, or Citron Amanita, ''Amanita citrina'', is a basidiomycotic mushroom, one of many in the genus ''Amanita''. It grows in silicate soil in the summer and autumn months. It bears a pale yellow or sometimes white cap, with white stem, ring and volva. Though it is not poisonous, its similarity to the lethal death cap precludes its use in cooking.
Amanita citrina This is a picture of Amanita citrina on the North Tract of the Patuxent Research Refuge near Fort Meade, Maryland. Amanita citrina,Fall,False death cap,Geotagged,United States

Appearance

This mushroom has a fleshy pale yellow, or sometimes white, cap from 4–10 cm across, covered in irregular patches. The gills and flesh are white. There is a large volva at the base of the 6–8 cm tall stem, which has a clear ring. This mushroom is not eaten, having a smell of rapeseed or potato.
Amanita citrina  Amanita citrina,False death cap,Fungi,Macro,Mushrooms,amanita,poisonous,toxic

Distribution

The false death cap is found in deciduous and coniferous woodlands in Autumn in Europe. It is also found in North American oak and pine forests.
False Death-Cap (Amanita citrina) Growing under Virginia pine, oak, and hickory trees in a dense mixed forest. Smells like raw potatoes--an identifying feature of this species. 
https://www.jungledragon.com/image/88054/false_death-cap_amanita_citrina.html
https://www.jungledragon.com/image/88053/false_death-cap_amanita_citrina.html Amanita citrina,Fall,False death cap,Geotagged,United States

Defense

Scientific tests in the University of Cambridge have shown that this mushroom contains the alpha-amanitin toxin. However, the amounts of this toxin were found to be very small and would not cause any adverse effects unless the mushroom was ingested in very large amounts. The biggest danger with this species is its marked similarity to the death cap, which is reason enough to avoid it, even though it is edible.

References:

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Taxonomy
KingdomFungi
DivisionBasidiomycota
ClassAgaricomycetes
OrderAgaricales
FamilyAmanitaceae
GenusAmanita
SpeciesA. citrina