Observation 214166: Amanita “sp-MO06” Tulloss & Kudzma crypt. temp.



Proposed Names

28% (1)
Recognized by sight
82% (1)
Recognized by sight: This specimen is bleached and starting to dry in situ. You can see some of the original orange-brown of the cap in the last photo.
Based on chemical features: Based no nrITS and nrLSU gene sequences.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Thank you, Bill.
By: R. E. Tulloss (ret)
2017-04-14 21:02:46 BST (+0100)

That’s very useful. I appreciate the effort.

Very best,


By: Bill Sheehan (B_Sheehan)
2017-04-14 20:16:41 BST (+0100)

The exact location where I found these specimens is an upland site dominated by large-sized white oaks (Quercus alba) with an understory of Ostrya virginica. There are sundry other tree species in the area, including Liriodendron tulipifera, Quercus rubra, Q. falcata, and Carya spp. Very few Pinus taeda, mostly died out now. I’d call it mixed hardwoods dominated by oaks. GPS: 33°59’21" N 83°29’43" W

Hello, Bill.
By: R. E. Tulloss (ret)
2017-04-14 18:45:59 BST (+0100)

I want to be sure I understand the sort of woods in which this materila was found. Is it entirely comprised of oak trees (mixed species)? Or is it mixed hardwoods dominated by oak? Or is it mixed conifers and hardwoods dominated by oak? I’m submitting the sequences to GenBank and would like to be as accurate as possible in describing the habitat.

Very best,


The web page for this species has been illustrated and expanded:
By: R. E. Tulloss (ret)
2017-04-11 18:45:08 BST (+0100)
if you already have both examples in your hands, Rod
By: Debbie Viess (amanitarita)
2017-04-11 16:24:42 BST (+0100)

can’t you examine them for more similarities/differences other than DNA?

are you certain these two dissimilar grisettes are perfectly DNA matched? Isn’t getting these mushrooms to species w/just DNA “matches” a bit of a judgement call?

I do believe that they are related, which the DNA should clearly show.

Not surprising at all that we see similar species fruiting in different areas here on MO. It happens all the time in many different genera. It is these inquisitive, documentarian field collectors that are truly driving our knowledge base, and sharing their finds as well as spending a good bit of money, in some cases, to send these samples on to others.

Without a photo and a specimen, it’s just a rumor!

MO is a great resource for all. But I don’t envy you your attempts to tease out the grisettes of the world, Rod. Next step, finding ways that we can tell them one from another w/out needing a lab to do it.

Can you make it rain?
By: Bill Sheehan (B_Sheehan)
2017-04-11 15:57:55 BST (+0100)

Then I’ll look for a younger specimen! (It’s been too dry for too long.)

Who would have thought that MO would provide both known collections of this…
By: R. E. Tulloss (ret)
2017-04-11 15:23:14 BST (+0100)


Of course, it is a hypothesis that the two collections belong to one species. We have supporting evidence, of course, but more would be wonderful. Maybe, Bill, you can find a younger specimen in all its glory. :)

This kind of stuff is very rewarding. My gratitude to all involved in collection and discussion on MO.

Very best,


Thanks Rod!
By: Bill Sheehan (B_Sheehan)
2017-04-11 00:42:26 BST (+0100)
What a chameleon!
By: I. G. Safonov (IGSafonov)
2017-04-10 23:34:17 BST (+0100)

The mushrooms pictured in the two obsies don’t look like the same species at all, even if one takes into account the difference in age.

The original (immature) MO obsevation of this species is…
By: R. E. Tulloss (ret)
2017-04-10 23:21:21 BST (+0100)

MO 167657.

Very best,


Dried material resembling these images is desired for research purposes.
By: R. E. Tulloss (ret)
2015-08-27 05:14:58 BST (+0100)

I can be contacted through the email function of the mushroomobserver web site.

Very best,


Created: 2015-08-27 04:28:01 BST (+0100)
Last modified: 2017-12-29 18:59:30 GMT (+0000)
Viewed: 150 times, last viewed: 2018-04-11 22:35:07 BST (+0100)
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