Observation 139507: Amanita sect. Caesareae Singer

When: 2012-09-15

Collection location: Hawn State Park, Missouri, USA [Click for map]

Who: weed lady (Sylvia )

No specimen available

Proposed Names

45% (3)
Recognized by sight
54% (1)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Your welcome, Sylvia.
By: R. E. Tulloss (ret)
2013-07-11 15:17:03 CDT (-0500)


By: weed lady (Sylvia )
2013-07-11 13:55:12 CDT (-0500)

You probably already have a record of this very specimen from Patrick Harvey. I happened to see him on this date at Hawn State Park (September 15, 2012 is what I have in my records). He found this one and was kind enough to let me get a photo. I had never seen one before, so I was quite happy to make its acquaintance. I wanted to add it to my observations. Just got around to doing it. Thank you for the correct citation. Sylvia/Plant Collector.

Did you get a shot after the cap opened further?
By: R. E. Tulloss (ret)
2013-07-11 10:10:25 CDT (-0500)

Amanita jacksonii usually shows a strong red all the way from the center to the margin of the cap. In the last couple of years, we are seeing many postings of another species of the Caesareae that is not yet named and which is much yellower on the outer half of the cap when its expanding beyond the point shown in your images.

The concentration of effort on the Caesareae in recent years (morphology and genetics) is really going to pay off for the southern U.S. The species (including new ones) should become a lot easier to recognize in the field because we’ll know more about the different cap and stem and annulus color patterns and variations.

Very best,


Created: 2013-07-11 07:00:43 CDT (-0500)
Last modified: 2013-07-11 10:11:14 CDT (-0500)
Viewed: 28 times, last viewed: 2018-03-02 07:28:20 CST (-0600)
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