Observation 65080: Agaricus fuscovelatus Kerrigan

When: 2011-04-02

Collection location: Tomales Bay, Marin Co., California, USA [Click for map]

Who: Darvin DeShazer (darv)

No specimen available



Proposed Names

66% (2)
Eye3 Eyes3
Recognized by sight: Growing under Monterey Cypress (Cupressus macrocarpa)
27% (1)
Recognized by sight: Mixed collection. Last two pictures (and the button the the right in the top photo) are Agaricus agrinferus
55% (1)
Recognized by sight: two very different veils

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Erin Page Blanchard (CureCat)
2011-04-04 04:57:38 CDT (-0400)

Noah suggested maybe A. bisporus for the smaller one too, and it does resemble the dried up ones I saw a few days ago growing right next to some equally dried A. fuscovelatus.

I sincerely doubt
By: Christian (Christian Schwarz)
2011-04-04 04:39:53 CDT (-0400)

the lower one is not A. fuscovelatus – probably A. bisporus, the wild form.

these are not…
By: Debbie Viess (amanitarita)
2011-04-03 21:38:48 CDT (-0400)

especially knowing the size.

By: Erin Page Blanchard (CureCat)
2011-04-03 20:36:48 CDT (-0400)

How are these photos ambiguous?

the difference is…
By: Debbie Viess (amanitarita)
2011-04-03 20:03:55 CDT (-0400)

that we were only looking at photos, and some ambiguous ones to boot.

Cap size
By: Darvin DeShazer (darv)
2011-04-03 17:51:57 CDT (-0400)

The large cap is 5 cm and the small one is 3 cm in diameter.

By: Erin Page Blanchard (CureCat)
2011-04-03 16:31:07 CDT (-0400)

These were much smaller…. But I really don’t see how A. lilaceps and A. fuscovelatus look similar, regardless of size. I know you and Christian seemed to think so to some degree, but I don’t see it.

Also, Darv, I have seen upwards of 3 or 4 species growing in the same small Cypress Grove, some times nearly next to one another. I noticed it yesterday that the young one didn’t look like A. fuscovelatus but the older one definitely was. Maybe there are two species in this observation.

By: Debbie Viess (amanitarita)
2011-04-03 13:23:56 CDT (-0400)

where’s my fuscose veil(in your last photo)? Yet another variable trait??!

they look smaller than the A. lilaceps recently posted here…approx. size of your caps were…?

Created: 2011-04-03 11:30:59 CDT (-0400)
Last modified: 2015-03-20 17:10:32 CDT (-0400)
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