Observation 149911: Agaricus californicus Peck
When: 2013-10-26
No herbarium specimen
0 Sequences

Found a bushel of these in one of my old bark dust planters here at home beneath a old spruce tree..Haven’t eaten any.I’m still learning.:)

Don’t appear to be the Agaricus moelleri..Best I can tell they are the A.campestris..Largest about 3" across cap..Pink gills,( when freshly opened/picked) moderate skirts on the ones opened and more mature..When cut, they don’t stain yellow or red..just turn light brown..Mushroom smell like the white mushrooms sold at every grovery store..Spore es when laid on white paper for several hours are mediem bron tracks on the paper..


I had not heard of the A.californicus..Appears the two white mushrooms (campestric & califirnicus) are very similar in appearance..tho one is edible and the other maybe not so..

Proposed Names

-8% (2)
Used references: Daniel Winkler’s guide as well as this site and ohers on mycology and some tests
28% (1)
Recognized by sight: Persistent veil, not staining yellow, gestalt, what do they smell like?

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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By: Jim Fetrow (jiminoregon)
2013-10-27 17:51:27 CDT (-0400)

After being picked almost 24 hours, the mushrooms I found and thot were A.campestris..seem to be A. californicus..
Initially, they wouldn’t stain at all when cut or scratched-bruised..
All the rest of the spore color, stem, cap,etc seemed to say they were A.campestris..which is a white mushroom found here in Oregon..

However, after one person contributed that they may be A. californicus( NOT and edible white mushroom) I found that today, the specimens I cut almost 24 hours ago DO turn yellow when bruised-scratched..They don’t have any phenolic odour to them..S anyhow..Guess I won’t do up a batch to eat..:)Jim

Created: 2013-10-26 20:50:27 CDT (-0400)
Last modified: 2013-10-26 22:41:46 CDT (-0400)
Viewed: 41 times, last viewed: 2017-06-30 07:12:56 CDT (-0400)
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