Observation 25365: Amanita persicina (Dav. T. Jenkins) Tulloss & Geml

When: 2009-09-15

Collection location: Georgia, USA [Click for map]

Who: AmatoxinApocalypse (AmatoxinApocalypse)

Specimen available




Proposed Names

-9% (2)
Recognized by sight: Bright red cap, marked rings of universal veil on lower stipe and upper part of bulb. Geography (so far as is known) eliminates A. muscaria.

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Deep south
By: Erlon (Herbert Baker)
2013-10-21 19:39:32 CDT (-0400)

A. muscaria subsp. flavivolvata =(A. amerimuscaria), does not occur in the southeast.

Also, I have not heard from T.A.K in quite a long time. I fear he has passed from this realm.

The images at the top…
By: R. E. Tulloss (ret)
2010-10-29 22:32:56 CDT (-0400)

The images at the top of the page, with the bright red caps look like A. amerimuscaria, which reputedly grows in the deep south…sometimes in quantity. Note the rings on the stem, also.


Yes, W.
By: R. E. Tulloss (ret)
2009-09-25 10:10:55 CDT (-0400)

Yes, some material would be worth sending. I’m swamped with material from this summer, but I (insanely) hope to get to most of it.

Very best,


Small clarification…
By: R. E. Tulloss (ret)
2009-09-25 10:08:14 CDT (-0400)

Actually, the name “guessowii” is in honor of a Canadian mycologist Guessow (correctly spelled with a “u-umlaut” rather than “ue.” If there is a type collection (we know a photograph exists that could be a lectotype if there is no holotype), then it would be Canadian material…possibly from Ontario(?).

Very best,


I have some concern about the yellow staining reaction…
By: R. E. Tulloss (ret)
2009-09-25 09:24:53 CDT (-0400)

This reaction is also mentioned as a character of the so-called “A. mucaria var. alba”; however, in addition to Dr. Geml’s study that casts doubt on their being any taxonomic value to segregating white populations of muscaria (or of such populations of amerimuscaria_), I have found rain/age-bleached specimens of the yellow variant with complete white caps that have a stipe staining bright yellow in age. At this point, I think that we have consider the possibility that many yellow staining reactions actually involve occurrences of the “yellowing syndrome.” At least, I would suggest taking a “yellow staining” reaction in the muscaria group with a grain of salt. Everybody go scratch a “persicina”. Have you scratched a "_persicina" today?

Very best,


The south
By: Paul Derbyshire (Twizzler)
2009-09-17 09:35:07 CDT (-0400)

is lucky. Very dry here.

If A. muscaria var. guessowii is the North American fly agaric, then isn’t it what was renamed A. amerimuscaria based on DNA studies showing that it was a whole separate species from the European fly agaric?

By: Erlon (Herbert Baker)
2009-09-17 08:57:05 CDT (-0400)

A. muscaria var. formosa was the European variety, A. muscaria var. guessowii was the eastern U.S variant.

Although mushroomexpert.com calls the eastern U.S species formosa!

Its causing quite the confusion for people.

Rod, Debbie
By: AmatoxinApocalypse (AmatoxinApocalypse)
2009-09-17 08:57:05 CDT (-0400)

Rod: I believe this one to be persicina, I found several others near it and they all were more of a peach color, especially the oldest one and the youngest one (not pictured).

I have plenty of specimens if you are interested in working on some.

I have noticed the rings can be very pronounced on these, also when growing under older loblolly pine they tend to grow to greater sizes than specimens found under smaller loblolly.

Debbie: Im sure you will find some beautiful Amanitas when you go to NC, the south is getting drenched with rain at the moment, there so many mushrooms fruiting at the moment its incredible!!!

I thought
By: Paul Derbyshire (Twizzler)
2009-09-17 02:26:04 CDT (-0400)

guessowii was a variety of a European species; almost all North American fly agarics and all northeastern ones are being called A. amerimuscaria now.

just read Jenkin’s persina description…
By: Debbie Viess (amanitarita)
2009-09-16 12:42:23 CDT (-0400)

he states that the yellow on the stipe is a staining rxn., rather than from UV material like in the old variety flavivolvata. that fits with what I see in your photo.
I am leaning towards persina for this ID.

neither of the links you provided show orange Eastern amerimuscaria, Twizzler.
By: Debbie Viess (amanitarita)
2009-09-16 12:38:01 CDT (-0400)

Rod called the one yellow-orange fruit body a guessowii, and the other is so faded as to be mostly white!

I’d say that the jury is still out on Weiliiiiii’s handsome muscaria something.

Pics of orangish amerimuscaria
By: Paul Derbyshire (Twizzler)
2009-09-16 11:51:31 CDT (-0400)
is this a dinner-sized plate? impressive!
By: Debbie Viess (amanitarita)
2009-09-16 11:14:07 CDT (-0400)

as mentioned before, I have zero direct experience with persina, altho maybe I’ll get lucky in NC next week.

The cap color as depicted here seems awfully persina-like orangy, but the yellow color on the stipe seems more like staining….do eastern US members of section amanita also get the “yellowing disease”, Rod? Or maybe it is spreading?

Might be interesting to pin down the ID on this one…

By: Erlon (Herbert Baker)
2009-09-16 11:04:35 CDT (-0400)

I don’t know, it sure looks pinkish pastel red to me and the stip is yellowish as described for A. muscaria var. persicina.

I would like to see some pics of the red-orange form of A. amerimuscaria in the east but i cant find any.

By: R. E. Tulloss (ret)
2009-09-16 09:05:45 CDT (-0400)

I think there is a slight chance that this is amerimuscaria (muscaria subsp. flavivolvata) because of the well-formed rings of limbus internus tissue on the upper bulb and lower stem, as well as the apparently solidly red pileus. The volva appears to have originally been yellow.

I think I can arrange for DNA sequencing…and/or check it microscopically.

Very best,


Created: 2009-09-16 00:20:25 CDT (-0400)
Last modified: 2014-06-10 23:12:19 CDT (-0400)
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