Observation 217292: Amanita sect. Vaginatae sensu Zhu L. Yang

[OMS Mycoflora field trip]

Found by SK and Dick Bishop. This is the third consecutive year we’re seeing this mushroom in the same clearings near the lake (see Observation 142389 and Observation 174320). The dominant tree here is Engelmann spruce, but there are also a Pacific silver fir and Sitka alders right there, with Douglas firs and hemlocks not too far.


The third was at about 15 m from these two.
No other editing except adjusting white balance using the grey card shown, and cropping.

Proposed Names

28% (1)
Recognized by sight

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Athena (Apfelmusser)
2015-11-20 14:33:47 CST (-0600)


We’ve received your package, and the mushrooms have been accessioned into RET’s herbarium.

Thank you!!!

Added images
By: Sava Krstic (sava)
2015-10-02 01:18:35 CDT (-0500)

… to show cap color.

Rod, thanks again. I will mail the material next week.

Thanks for the expanded ecological information. <<<<EDIT
By: R. E. Tulloss (ret)
2015-10-01 12:47:29 CDT (-0500)

I referred Marty Kranabetter to the three relevant observations, and he says his collection came from a similar habitat.

Also, it is worth note that the photos of European friabilis that I have on-line show a cap that is distinctly brownish at first <> and a rather light gray when fully expanded. So this is another similarity with the friabilis-like taxon about which we are speaking.

A small amount of data on the Alaskan and Canadian collections is posted here:


Your 2013 material is in my herbarium under the accession number RET 573-2. We’ll try to put it in the next batch to be sent out for sequencing.

Very best,


Answers to Rod
By: Sava Krstic (sava)
2015-10-01 11:10:10 CDT (-0500)

(1) All three collections are indeed from the same small area. I cannot tell for sure that they are from exactly from the same spot because there is several clearings at the edge of the lake, which all look the same. These are the places where the conifer forest ends and turns into a thin strip of small alder trees and shrubs that a just little further becomes marsh. These clearings must be under snow and water for a long time every year. This year in particular, they are covered with debris (tree branches etc).

(2) You got the MO collection for our 2013 observation right; sorry for my 9/8 transposition. (Long story. Once I invited friends for dinner on the 8th of a month and wrote down the 9th in my calendar…) The link to the 2014 collection is correct.

(3) The base cap color under warts is pale gray, yes. I think I have a photo shot from the above, maybe even with the color card on the side; will post. The whole mushroom is in different shades of gray, maybe brownish grey.

Is the 2013 collection this one?
By: R. E. Tulloss (ret)
2015-10-01 10:11:28 CDT (-0500)
How would you describe the color of the cap surface below the volval warts?
By: R. E. Tulloss (ret)
2015-10-01 10:06:47 CDT (-0500)

From the photos, it seems pallid.

Very best,


Thank you, Sava.
By: R. E. Tulloss (ret)
2015-10-01 10:04:24 CDT (-0500)

I will have to search my herbarium database and pull all the material together. Were all the collections at Big Mosquito Lake?

Very best,


Thanks, Rod
By: Sava Krstic (sava)
2015-09-30 23:45:43 CDT (-0500)

I’ll send these to you. You already have our 2013 collection. I should have sent you the last year’s collection; if I haven’t, I’ll include it now.

In association with alders… >>>>EDITED
By: R. E. Tulloss (ret)
2015-09-30 07:07:51 CDT (-0500)

collectors in Alaska and British Columbia have found species somewhat similar to A. friabilis of Europe.

The material of this observation looks like a species of section Vaginatae with a friable volva.

I would very much like to look at your dried material if that is possible.

Very best,

Rod Tulloss

Created: 2015-09-30 00:43:12 CDT (-0500)
Last modified: 2018-01-05 21:52:01 CST (-0600)
Viewed: 100 times, last viewed: 2018-01-13 02:36:16 CST (-0600)
Show Log