When: 2008-11-04

Collection location: Mendocino, Mendocino Co., California, USA [Click for map]

Who: Ryane Snow (snowmam)

No specimen available


Copyright © 2008 Ryane Snow, Ph.D.
Copyright © 2008 Ryane Snow, Ph.D.

Proposed Names

40% (5)
Recognized by sight: I’ve IDed this mushroom many times
Used references: Arora, D., Mushrooms Demystified
15% (6)
Recognized by sight: See other observations of A. breckonii from northern Calif.
34% (5)
Recognized by sight: prior collections run by Dr. Tulloss.
55% (1)
Recognized by sight: this is our unnamed gemmatoid amanita, depicted by myself and others as breckonii on MO. lack of marginal striations in mature form eliminates breckonii. from Rod’s website: breckonii with “strongly tuberculate-striate margin at maturity”.

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= Observer’s choice
= Current consensus


Add Comment
By: Danny Newman (myxomop)
2012-04-01 21:45:00 PDT (-0700)

is this colloquial naming a MO convention only or a forerunner to a publication in progress?

but that cap color is wrong for breckonii, isn’t it?
By: Debbie Viess (amanitarita)
2008-11-05 08:32:11 PST (-0800)

This looks to be the mushroom that we have been calling gemmmata var. exannulata, with its yellow cap and oddly pinched and flaring volva. But I will let Rod chime in here if he’s around. These two mushrooms (breckonii and gemmata exannulata) have been a source of contention and confusion for a while now; probably the only way to resolve it is thru good collections and further lab-time study.

OK Ryane, it’s up to you, now! Dry those puppies…and get them to Rod; or save them and get them to me this Fall; I should be heading your way at some point this month.