Observation 24053: Agaricus bernardi Quél.

When: 2009-08-05

Collection location: Santa Cruz, California, USA [Click for map]

Who: Shane Marsh (Mushane)

No specimen available

foul smell, not “inky” but nasty



Proposed Names

0% (4)
Recognized by sight
-9% (3)
Recognized by sight: Veil not well developed
52% (3)
Recognized by sight: Reddening of the flesh above the gills & strong odor.
28% (1)
Recognized by sight: wild guess…faint(not pronounced) reddening, somewhat fluffy-looking cap similar to the Agaricus sp. collected by Allen in the South Bay last fall…and thought by Kerrigan to maybe be a rare reddening sp., A. pilosporus. young and mature collections would be important to determine true identity. this COULD be something rare!
here’s the link to the prior sighting…
56% (1)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Shane Marsh (Mushane)
2009-08-07 16:08:20 PDT (-0700)

ill be sure to keep my eyes peeled for another, I was quite surprised to find it with the lack of rain.

ID still open to question…
By: Debbie Viess (amanitarita)
2009-08-07 12:22:04 PDT (-0700)

younger material would help. the iodine odor in bernardii is quite distinctive, but old half-rotten mushrooms kinda confuse the issue. most of the bernardii that I have collected also usually have a cracked cap (this one doesn’t) but that feature may be more related to humidity and sun exposure than ID. and I was under the impression that ONLY bernardii stained reddish, not bitorquis, altho the “staining” shown in the photos is pretty subtle.

please go back and look for more, Shane! Inquiring minds, and all that…

By: Dimitar Bojantchev (dimitar)
2009-08-07 11:46:56 PDT (-0700)

I’ve seen both bitorquis and bernardii near the bay. I think there are also some new species in that group that Kerrigan will report at some point. But to be able to make sure it should be sliced as bernardii has a more pronounced rufescense. Otherwise I’d stick to bitorquis as the most likely scenario. Both have very similar veils. This is clearly not campestris. [LET ME EDIT: not so clearly not campestris, but the ratio of cap vs. stem and other features, doesn’t look like it]

interesting, Gerhard! we get them here in lawns around the salty Bay…
By: Debbie Viess (amanitarita)
2009-08-07 11:24:09 PDT (-0700)

and I’d imagine that they use a LOT of salt in the roadways in the Denver area.

A. bernardii is fruiting in areas with high salt percentage like roadsides …
By: Gerhard Koller (Gerhard)
2009-08-07 09:26:06 PDT (-0700)
…. at least in Europe, and I know people who are eating it. See my observationhttp://mushroomobserver.org/...
if bernardii, you’ll be horrified to hear that it’s an excellant edible!
By: Debbie Viess (amanitarita)
2009-08-07 07:05:45 PDT (-0700)

its odor is often described as “briny” or like iodine. it was fruiting abundantly in the Denver area in June.

Two rings..?
By: Irene Andersson (irenea)
2009-08-07 02:08:19 PDT (-0700)

This looks like the one I call Agaricus bitorquis. It has one thin, but rather persistent ring, and a thinner and more evanescent one below, that is directed upwards.
Very young ones have an agreeable smell, but it soon turns to foul.

By: Shane Marsh (Mushane)
2009-08-07 01:22:17 PDT (-0700)

I thought campestris myself, I figured the bad rotting odor might be because of its age

Created: 2009-08-06 21:36:17 PDT (-0700)
Last modified: 2016-09-03 11:22:36 PDT (-0700)
Viewed: 171 times, last viewed: 2018-10-03 14:58:42 PDT (-0700)
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