Observation 113202: Amanita muscaria var. guessowii Veselý

When: 2012-10-09

Collection location: Rock Island State Park, Warren Co., Tennessee, USA [Click for map]

Who: Brian Adamo (adamo588)

No specimen available

75mm cap diameter, 125mm x 10mm stipe, growing on ground near pines in mixed forest, inamyloid spores, no odor, 3 specimens within a 20ft radius. As you can see, slugs are especially fond of them!

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Oh, don’t say that.
By: R. E. Tulloss (ret)
2012-10-12 08:53:51 EDT (-0400)

Everybody makes mistakes. I’ve made plenty. Mycological knowledge doesn’t come giftwrapped.

I have been making mistakes and learning from many, many people over many, many years. It started with my first Northeast Foray in the late 1970s. PLENTY of years to make PLENTY of mistakes. My old brain is no replacement for the brains you’ve got.

Hooray for all the brains out there!


By: Brian Adamo (adamo588)
2012-10-12 07:49:49 EDT (-0400)

Once again I jump to the wrong conclusion. So many Amanitas, so little time and knowledge. I should just post them as “Amanita sp.” and let the experts take it from there. Thanks, Rod.

With a pantherinoid “rolled sock” volva…
By: R. E. Tulloss (ret)
2012-10-12 01:00:05 EDT (-0400)

and smallish ellipsoid, inamyloid spores, I think that their is one strong possibility (Amanita muscaria var. guessowii) and one less likely possibility (Amanita muscaria var. persicina which normally would not have a “rolled sock”-type volva).

Does this help?


Spore Shape
By: Brian Adamo (adamo588)
2012-10-11 23:58:34 EDT (-0400)

Hi Rod,

They’re 9×6 micron ellipsoid. I know your description of A.frostiana calls for globose spores, but I couldn’t find anything close with inamyloid spores. What do you think?

- Brian

Brian, can you tell us about the shape of the spores?
By: R. E. Tulloss (ret)
2012-10-11 21:21:32 EDT (-0400)

Thanks in advance.


Created: 2012-10-11 20:45:08 EDT (-0400)
Last modified: 2017-02-12 22:13:50 EST (-0500)
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