When: 2010-03-15

Collection location: NW Cobb Co., Georgia, USA [Click for map]

Who: thall

No specimen available


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By: R. E. Tulloss (ret)
2010-03-19 16:49:45 CST (-0600)

For Amanita, I would suggest the Great Smoky Mtns Nat. Pk. checklist and the “Texas and Gulf Coast” checklist that can both be found on the list at


Within a few months, I hope that the lists will be reformated and be produced (with automatic update) on the new Amanita Studies website.

For a general field guide, I like N.S.Weber and A.H.Smith Southern Mushrooms guide from Univ. Michigan Press. Don’t expect that field guides are going to be up-to-date with name changes; however, anybody who’s been at mushrooming for awhile can speak with “forked tongue” and knows old and new names at least to some degree. The web is always helpful. There is a recently published Florida field guide by Dr. James W. Kimbrough (Common Florida mushrooms), which I’ve just seen on Amazon.com. I’m sure that others will be able to help with some other names. With regard to Amanita, I think Dr. Jenkins’ book (Amanita of North America) is currently out of print. He comes to mind because he did a lot of collecting in the southern states (he lives in Birmingham, Alabama, but is out of mycological taxonomy now). I hope the new Amanita Studies site will expand upon the U.S. Amanita data in Jenkins’ 1986 book.

MO can put you in contact with people from all over including Georgia.

Very best,

Rod Tulloss

By: thall
2010-03-19 16:13:55 CST (-0600)

… for your detailed comments, as well as for the link. You’ve provided some very helpful details. I must admit, that in the beginning, my primary interest was in photographing mushrooms, then I began to become more interested in keying them out. But, still my first instinct is to not want to disturb them, especially if they are really interesting-looking. Which, of course is not a useful habit for identifying them. I hereby resolve to make more detailed observations. Do you know of a good reference for the Southeastern U.S.?

The image seems rather pale…
By: R. E. Tulloss (ret)
2010-03-18 14:06:13 CST (-0600)

You might wish to consider A. muscaria var. persicina, especially because of where the collection was made. The southeastern US is sort of a refugium for var. persicina. Its cap color covers quite a range of tints due to the fact that sunlight will alter the yellow and purple pigments that give the yellow-orange-red range of colors to human eyes.

Amanita muscaria var. formosa (if it is distinct from var. muscaria) was described from Europe; and probably doesn’t occur in the U.S. All the yellow-capped species from the U.S., Canada, and Mexico that have had certain genes sequenced (so far) are more likely to be color variants of var. muscaria or subspecies flavivolvata than genetically distinct taxonomic entities (like specimens of forms or varieties or subspecies). In the southeastern U.S. All material that has been sequenced so far appears to belong to one or more species, none of which are A. muscaria. It has also been demonstrated by morphology alone that the European muscaria (which can be red, yellow, white, or striped (no kidding)) is a different species from the so-called subspecies flavivolvata which is the dominant (but not the only) red-yellow-white-capped species of North America (and probably Central America as well) in the “muscaria-like” group of species.

Have you looked at the images of A. muscaria var. persicina at


? The text on that page will also give you some clues other than cap color for identifying A. muscaria var. persicina.

Very best,

Rod Tulloss

I would disagree…
By: thall
2010-03-18 12:20:04 CST (-0600)

… regarding the color — matches images and descriptions from reference sources (yellow to yellow-orange cap with white patches).

The color doesn’t seem quite right…
By: R. E. Tulloss (ret)
2010-03-16 21:14:08 CST (-0600)

Did you happen to get a photo of the excavated stem and bulb?