Observation 141052: Amanita “sp-amerirubescens07” Tulloss crypt. temp.
When: 2013-07-25
Collection location: Perry, Maine, USA [Click for map]
0 Sequences

On moss covered ground under balsam fir, birch, white cedar and red maple in mixed woods that include pine and beech. Cap brownish yellow with grayish patches and bruising wine red. I’m not sure which name to give to these eastern rubescent taxa which are currently under study by Rod Tulloss (see his comment MO 140191): A. rubescens sensu auct. amer., A. amerirubescens or A. rubescens group. Compare this with amerirubescens with pink flesh colored caps and buff colored universal veil—MO 140446.

Proposed Names

53% (3)
Eye3 Eyes3
Recognized by sight: gray universal veil, shape of bulb
Used references: obs 147255

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Thanks, Terri.
By: R. E. Tulloss (ret)
2014-07-21 16:55:53 CDT (-0400)

Your material was received in good order today.

It will be interesting to see what we can learn from this material. Thanks for the ecological information also.

Very best,


Thank you, Linas
By: Terri Clements/Donna Fulton (pinonbistro)
2014-07-18 18:23:53 CDT (-0400)

I would gladly keep interesting finds as you say but I’m not sure I know enough to recognize them on my own. I kept these because I knew Rod Tulloss was doing research on them and he asked for specimens. It would be nice if MO could keep a wish list of specimens wanted for users to refer to if they are interested in preserving and sending specimens.



Excellent photos!
By: Linas Kudzma (baravykas)
2014-07-18 11:19:21 CDT (-0400)

Keep up this good documentation and save interesting finds. This supports doing real research with the material.

Best regards,

Thank you, Terri.
By: R. E. Tulloss (ret)
2014-07-18 09:09:26 CDT (-0400)


Hi Rod,
By: Terri Clements/Donna Fulton (pinonbistro)
2014-07-18 08:36:00 CDT (-0400)

I’ll send it off to you.


Well, that was a quick response to a new temporary code name.
By: R. E. Tulloss (ret)
2014-07-17 23:26:01 CDT (-0400)

I checked to see if I had asked for a specimen from this collection, and I have no record of it. If I haven’t asked before, I will ask now. It’s an amazing thing to have all the extra eyes and brains of MO helping out…especially just when I am so tired that I could drop.


Thanks very much for posting the name change.

Let’s see what your material will tell us.

I am a little concerned about being too dependent on volval color. It has bitten me before; however, there’s no way to know what is going on here other than to look at your material and compare to the two other collections that joined up to force me into seeing there was still another rubescent taxon to learn about.

Very best,


I did not intend to get hooked.
By: R. E. Tulloss (ret)
2013-07-26 11:51:55 CDT (-0400)

In my 34-year-old naivete, I thought that I’d spend a couple of years learning all the US amanitas and then go on through the boletes, chanterelles, and other beauties. I picked Amanita to begin with because the first presentation on microscopy I ever heard was on the universal veil of amanita and how the microscopic structure determined the shape of the warts or patches or powder left on the cap. As an engineer and mathematician, I got sucked into microscopy in that one lecture (by David Jenkins at a Northeast Foray in Bennington, VT,…I think).

Then I found out that there were amanitas that were not in field guides and got interested in that and then I discovered Dr. Bas’ monograph on section Lepidella and then… Lost among the towering trunks of the amanitas ever since.

Very best,


Thanks, Rod
By: Terri Clements/Donna Fulton (pinonbistro)
2013-07-26 11:29:41 CDT (-0400)

I love finding Amanita—such variety of shapes and colors. I can see how you would get hooked on them.



Nice set of shots.
By: R. E. Tulloss (ret)
2013-07-26 11:14:33 CDT (-0400)

I especially like the cross-sections showing the gills beginning to separate from the partial veil. Shots like this always make me think of the cells along the gill edge that make the separation possible. “The agaric equivalent of Velcro.”


I think you made a good choice of a name.
By: R. E. Tulloss (ret)
2013-07-26 11:11:40 CDT (-0400)

We have been working at interpreting the data we have been getting from the sequencing process. It looks like we would benefit (of course) from a larger number of collections from a larger number of sites.

I think we’re becoming Oliver Twists: “Please, madam/sir, may we have more data?”


Very best,


Created: 2013-07-26 10:43:57 CDT (-0400)
Last modified: 2014-07-18 21:38:12 CDT (-0400)
Viewed: 141 times, last viewed: 2017-09-30 12:45:27 CDT (-0400)
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