Observation 156128: Amanita muscaria subsp. muscaria



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Recognized by sight: and confirmed by others
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Eye3 = Observer’s choice
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Hello Rod,
By: Gerhard Koller (Gerhard)
2013-12-23 14:52:28 PST (-0800)

thank you!
I almost assumed this is not the American taxon. Seldom there are the same mushrooms here and over there at yours. From the same place there is material in WU herbarium and they fruit there every year as far as I know. We will see what will come out in the future.

Hello, Gerhard.
By: R. E. Tulloss (ret)
2013-12-23 14:17:27 PST (-0800)

Because of the collection/observation site for this material, I’ll bet this material is not muscaria subsp. flavivolvata.

Yellow volval material occurs both in the European muscaria and in the North American entity presently called subsp. flavivovlata.

According to my studies, the best morphological method for segregation of the Eurasian muscaria and the North (and Central) American entity that is very similar to it is to use the thickness of the gills and the size/shape of the spores from mature material as the segregating factors. Macroscopic characters such as color will not always work well because of the high variability of color of the fruiting bodies in both species.

If you have access to DNA sequencing, the DNA sequences are distinct as per the large tree of data from many populations of both the Eurasian and North/Central American taxa in the Geml et al. publication of 2008. (See http://www.amanitaceae.org?bibliography )

DNA sequences and data from measurements of many spores and data for the thickness of the lamella trama measured at about mid height and mid length of a mature gill from the bases of basidia to the nearest edge of the central stratum at 1250x are to be found on the technical tabs here:


The morphological differences are clearest in composite data based on many mature collections.

Very best,


Created: 2013-12-23 10:03:05 PST (-0800)
Last modified: 2013-12-24 17:08:37 PST (-0800)
Viewed: 45 times, last viewed: 2018-10-05 22:25:22 PDT (-0700)
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