Weather conditions provided conditions for Amanita phalloides, also known as “death cap", to grow in the region. The primary toxin, α-amanitin, causes damage to liver and kidney. The toxin is heat stable and so is not destroyed by cooking. It is interesting to note that people are initially sick with nausea, vomiting, and diarrhea, then feel better, then are sick again with potential kidney damage.
Amanita is mistaken for edible Agaricus (wood mushrooms or field mushrooms).
Source -http://www.first-nature.com/fungi/

Amanita phalloides - Death Cap (http://www.first-nature.com/fungi/amanita-phalloides.php)

Agaricus campestris L. - Field Mushroom (http://www.first-nature.com/fungi/agaricus-campestris.php)

Agaricus silvicola - Wood Mushroom (http://www.first-nature.com/fungi/agaricus-silvicola.php)
It is important that people who pick wild mushrooms can properly identify them. If someone gives you mushrooms.....just don't take them unless you know without a doubt that they can properly identify mushrooms, or you can properly identify wild mushrooms.
CDC - MMWR (Morbidity and Mortality Weekly Report
https://www.cdc.gov/mmwr/volumes/66/wr/mm6621a1.htm?s_cid=mm6621a1_e
Amanita phalloides Mushroom Poisonings — Northern California, December 2016
Weekly / June 2, 2017 / 66(21);549–553
Amanita is mistaken for edible Agaricus (wood mushrooms or field mushrooms).
Source -http://www.first-nature.com/fungi/

Amanita phalloides - Death Cap (http://www.first-nature.com/fungi/amanita-phalloides.php)

Agaricus campestris L. - Field Mushroom (http://www.first-nature.com/fungi/agaricus-campestris.php)

Agaricus silvicola - Wood Mushroom (http://www.first-nature.com/fungi/agaricus-silvicola.php)
It is important that people who pick wild mushrooms can properly identify them. If someone gives you mushrooms.....just don't take them unless you know without a doubt that they can properly identify mushrooms, or you can properly identify wild mushrooms.
CDC - MMWR (Morbidity and Mortality Weekly Report
https://www.cdc.gov/mmwr/volumes/66/wr/mm6621a1.htm?s_cid=mm6621a1_e
Amanita phalloides Mushroom Poisonings — Northern California, December 2016
Weekly / June 2, 2017 / 66(21);549–553