Agaricus bernardii Quél.
Verbatim Date: 2008-10-04
United States, California, Mountain View, California, USA
37.3935 -122.087 +-5064m.
I am not sure what species. Stains brownish red, smells mildly bad like ink, has a bulbous base and is very hard.
Rights Holder: © held by the observer (listed as 'Collector') at iNaturalist.org, with some rights reserved (CC BY-SA)
Record Id: 394b8899-358d-455d-a011-1f4727986213