Observation 187792: Amanita sect. Vaginatae sensu Zhu L. Yang

Proposed Names

-61% (2)
Recognized by sight
43% (2)
Recognized by sight: grey volva and typical color. species that generally grows under spruce/fir in europe

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Except for the geography, I agree with Davide.
By: R. E. Tulloss (ret)
2014-11-14 10:31:51 CST (-0500)

This mushroom is very similar to the European species A. submembranacea.

We have a very large number of species in North America with a graying, submembranous volval sac, Davide. When Tim’s material reaches me, I will see if this can be distinguished from the European species. I did a type study of submembranacea more than twenty years ago, and the data is on-line here:


I hope that data will help me with understanding Tim’s collection.

Very best,


Thank you, Tim.
By: R. E. Tulloss (ret)
2014-11-10 07:39:41 CST (-0500)

As they say in old cowboy movies, “Much obliged.”

Very best,


Found directly at the base of a mycoheterotrophic plant
By: Tim Sage (T. Sage)
2014-11-10 00:52:44 CST (-0500)

Photos added.

In the dryer now, Rod.


I forgot the most important part…
By: R. E. Tulloss (ret)
2014-11-09 13:37:17 CST (-0500)

Thank you.

Yes, I would like to see a part of your collection that you are generously offering to share.

Very best,


Well, then, you’ll just have to get a gremlin exterminator to work on that car.
By: R. E. Tulloss (ret)
2014-11-09 13:32:35 CST (-0500)

However, your photographs do a pretty good job of telling me what it looked like.

I am getting very used to the idea that there are a lot more species in sect. Vaginatae than we have previously realized. DNA sequencing provides a tool for sorting through the look-alike collections. Eventually, we find that some/many of the look-alikes are not really so similar to their genetically different cousins.

This one looks cool. At least it is true of the babies, the species as the pigment falling short of reaching the cap edge. I’ve seen this in a few species in the east as well.

Very best,


It got beaten up in the car ride home….
By: Tim Sage (T. Sage)
2014-11-09 13:17:19 CST (-0500)

But I do have this collection if you would like me to save it for you.

Good morning, Tim. ….EDITED
By: R. E. Tulloss (ret)
2014-11-09 08:30:01 CST (-0500)

This species has the upper part of the volva turning gray, becoming very weak, cracking, and collapsing.

Amanita pachycolea has a thick, robust volval sack that doesn’t have the foregoing properties.

I agree with you that this observation depicts the same material as is seen in observation # 187809.

This well-photographed material represents a species in the range between A. sinicoflava and A. submembranacea on the one hand and A. ceciliae and A. rhacopus on the other.

This grouping of amanitas seems to be very large in North America. The group (not individual species) seems to extend from coast to coast.

Macrosocpically, your material is somewhat reminiscent of the European A. submembranacea.

It would be a great benefit to my studies of the the group if you could send me some well-dried material of it. We have already been able to determine that, in the east, we have many more species in the group than we expected. We are even beginning to be able to distinguish some of them with morphology (naked eye and microscope, in particular).

Very best,


Created: 2014-11-09 00:10:08 CST (-0500)
Last modified: 2014-11-14 11:42:53 CST (-0500)
Viewed: 107 times, last viewed: 2016-10-23 12:07:41 CDT (-0400)
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