Observation 205018: Amanita rubescens Pers.
When: 2015-05-26
No herbarium specimen

Notes: Found in a lawn in a park, SE Oklahoma County. Mixed sparse woods around (gum, locust, and pine.) Looking for confirmation of very tentative ID.

Images

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Amanita 5.26.15 a.jpg
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Amanita 5.26.15 b.jpg
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Amanita 5.26.15.jpg
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Amanita in situ.jpg
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Amanita upside down.jpg
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Amanita stipe.jpg

Proposed Names

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Comments

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Your mushroom is in the American rubescent group.
By: R. E. Tulloss (ret)
2015-05-26 18:23:09 CDT (-0500)

We know that the American group has several species in it because of genetic studies. From several years worth of data accumulation, it seems fairly clear that the original Amanita rubescens is European and is not one of the rubescent taxa in North America. I would expect that your material is one of the eastern rubescent taxa. Cap color would indicate that you can eliminate A. flavorubens, A. rubescens var. alba, and A.sp-MO02” among the species known from eastern North America. The other possible taxa are all unnamed at present (see below).

If you have experience with drying mushrooms and run across this critter again, I’d be very interested to research which of the genetically separated taxa you are finding. At present I have no data from Oklahoma. (There could be more than one rubescent species in Oklahoma, given that we have evidence of several rubescent species in Texas and some of the ranges extend at least to Ontario and Newfoundland.)

Among the unnamed taxa, several have data accumulating on species pages of the “Amanitaceae Studies” website. Here are some links:

http://www.amanitaceae.org?Amanita%20sp-amerirubescens01
http://www.amanitaceae.org?Amanita%20sp-amerirubescens02
http://www.amanitaceae.org?Amanita%20sp-amerirubescens04
http://www.amanitaceae.org?Amanita%20sp-amerirubescens05
http://www.amanitaceae.org?Amanita%20sp-amerirubescens07
http://www.amanitaceae.org?Amanita%20sp-N47

Very best,

Rod Tulloss

Created: 2015-05-26 17:27:43 CDT (-0500)
Last modified: 2015-05-27 13:17:54 CDT (-0500)
Viewed: 35 times, last viewed: 2016-10-27 21:50:04 CDT (-0500)
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