Observation 205433: Amanita sect. Caesareae Singer

When: 2015-06-01

Collection location: Baton Rouge, Louisiana, USA [Click for map]

Who: Logan Wiedenfeld (LoganW)

No specimen available

Such an impressive mushroom. That volva!

Proposed Names

28% (1)
Recognized by sight
56% (1)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Thanks very much, Logan.
By: R. E. Tulloss (ret)
2015-06-01 21:42:25 CDT (-0500)

And thanks for the information about the gill color.

Very best,


By: Logan Wiedenfeld (LoganW)
2015-06-01 18:00:45 CDT (-0500)

A. jacksonii evades me yet again. It bugs the hell out of me that the seemingly most conspicuous Amanita species is not conspicuous at all.

Sadly, Dr Tulloss, I don’t have any material. The next time I encounter this or a similar species, I’ll be sure to set some aside.

And the gills were decidedly yellow.

Hello, Logan.
By: R. E. Tulloss (ret)
2015-06-01 15:11:09 CDT (-0500)

I think this will probably not be jacksonii. Amanita jacksonii has distinctly orange felted patches onthe stipe and, at the age of your material would have a very strongly red cap. There are quite a few species of the slender Caesars in SE North America, and we probably have not yet found them all. Genetics is very useful in sorting them out. I would be glad to take a look at material of the sort you have in this observation and would try for sequences.

Your pictures really are gorgeous. It would help to know the color of the gills in side view. They are yellow in jacksonii and several other species, but white in side view in species such as arkansana.

Very best,


Created: 2015-06-01 12:35:24 CDT (-0500)
Last modified: 2015-06-01 15:32:07 CDT (-0500)
Viewed: 83 times, last viewed: 2017-06-20 04:16:17 CDT (-0500)
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