iNaturalist Research Grade Observations
Catalog #: 10009821
Taxon: Agaricus bernardii Quél.
Family: Agaricaceae
Collector: old_timer      
Date: 2018-02-26
Verbatim Date: 2018-02-26 12:00:00 AM PST
Locality: United States, California, Hearst San Simeon State Park, San Luis Obispo County, US-CA, US
35.582223  -121.119969 +-72m.
Description: Original observation #10009821 (iNaturalist)
Occurrence Remarks: Agaricus bernardii 2018/04/28 Update: I found another young, bugless specimen a day or two ago. Same location, same taxonomy. Same strong flavor. No reaction of any kind. Original submittal below..... Hey, it's raining in Cambria today! I'm so happy to say that. Back to A. bernardii. Found in a loose cluster in grassy duff under Monterey Cypress. Young specimen had pushed up some soil like an A. bitorquis. This specimen had a strong odor that I have trouble describing other than it is neither anice/almond like nor creosote/library paste like. Flesh is very firm and stains rapidly to a mostly brownish, slightly red color. Neither flesh, cap, nor stipe stain under 3% KOH. Cap; approx 13mm dia, w/ inrolled edge. Color, primarily white w/ tightly appresses small greyish scales (see photo on mycoweb. ( ) Gills: close, free, and pinkish aging to chocolate brown. Stipe; stout, dense, tapering to a dull point. Seems to have a small, soft center possibly hollow (not seen in any scientific descriptions). Partial veil; superior, ascending. I am confident with the A. bernardii i.d. So confident I dry-sauteed a bit last night (1/2 small mushroom) and the flavor was fine with me. Not the slightest reaction to this species.
Specimen Images
Rights Holder: © held by the observer (listed as 'Collector') at, with some rights reserved (CC BY-SA)
Record Id: 162f6f3e-ff39-41ca-95a3-3b93628cde17
Occurrence ID (GUID):
For additional information on this occurrence, please contact: Ken-ichi Ueda (
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