Observation 59251: Amanita banningiana Tulloss nom. prov.

When: 2010-06-12

Collection location: Prentice Cooper State Forest, Marion Co., Tennessee, USA [Click for map]

Who: Brian Adamo (adamo588)

No specimen available

OK, Rod, tell me what it really is!



Proposed Names

-24% (2)
Recognized by sight
47% (2)
Recognized by sight: Ring on stipe, membraneous volval sac, prominently striate cap margin. This collection is a bit more yellow than the banningiana that I typically see here in PA…. maybe some other eastern NA Caesar? Anticipating Rod’s input.

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Britney Ramsey (Riverdweller)
2010-11-20 08:14:08 CST (-0500)

Those are eye-catching!

I think banningiana is the most probable of the suggestions.
By: R. E. Tulloss (ret)
2010-11-19 21:31:06 CST (-0500)

Amanita arkansana has a proportionally larger volva and a cap without the deep brown disc. Also, arkansana does not often have such a pronounced umbo.

This is definitely colored like a piece of candy, and I don’t associate the BRIGHTNESS with arkansana.


A lot of my earliest collections of banningiana in Mercer Co., NJ, had some strong yellow on the cap surface, but this often became browner with age. The striking contrast between the umbo and the rest of the cap in the present case does strike me as unusual for banningiana.

Maybe this species will fruit again for Brian in the coming year, and we can get some well-dried material under the scope in the future. Section Caesareae seems to be producing a lot of interesting “surprises” the more we see pictures from a wider and wider set of subregions in the SE U.S. Maybe this is another “new” one.

Very best,


Created: 2010-11-19 18:28:30 CST (-0500)
Last modified: 2011-03-30 13:06:05 CDT (-0400)
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