Observation 108022: Amanita sect. Caesareae Singer
When: 2012-09-01
Herbarium specimen reported

Proposed Names

47% (2)
Recognized by sight
54% (1)
Recognized by sight

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
I want to emphasize again that drying moderately quickly and…
By: R. E. Tulloss (ret)
2013-05-28 17:59:41 CDT (-0400)

getting material on the dryer quickly after collection are critical to producing material in which the spores are most valuable for identification. Also, not controlling humidity well after drying is damaging to the DNA.

In other words, no matter what approach is used for identification, drying material quickly and keeping it dry is very important.

Very best,


This time, I couldn’t get a clean separation based on spores.
By: R. E. Tulloss (ret)
2013-05-28 17:36:58 CDT (-0400)

The species could be at least “sp-AR01” or “sp-S10” or jacksonii. The most efficient thing to do is to send the material to be sequenced. We will schedule sampling. I am inclined against jacksonii because of the broad yellow cap margin in immature material and the stipe’s being basically yellow at first with yellow felted decoration.

Very best,


Thank you, Steve.
By: R. E. Tulloss (ret)
2013-05-28 16:48:03 CDT (-0400)

This species looks to me like one of the undescribed species of sect. Caesareae of which Santiago Sanchez and I have been seeking more material. I’m going to work the spores up shortly. Check the very limited data for these species on WAO:




What you have here might well be one of them.

Very best,


I don’t think so. The center of the cap…
By: R. E. Tulloss (ret)
2012-09-02 13:21:08 CDT (-0400)

in banningiana is quite distinctly brown; and the felted material on the stipe is so close to the color the stipe itself that the former is very hard to distinguish.


Could they be
By: Stephen Russell (Mycota)
2012-09-02 12:06:28 CDT (-0400)

A. banningiana?

We need to compare this with jacksonii.
By: R. E. Tulloss (ret)
2012-09-02 09:35:45 CDT (-0400)

This summer so many possible collections of jacksonii just have too much yellow from my point of view.

I’m hoping to get material of this critter from at least a few of the people who have posted images of it.

Very best,


Created: 2012-09-01 23:50:29 CDT (-0400)
Last modified: 2015-08-06 17:35:04 CDT (-0400)
Viewed: 66 times, last viewed: 2016-10-21 10:40:39 CDT (-0400)
Show Log