Observation 105823: Amanita barrowsii A.H. Sm. nom. ms.

Although not a formally published name at this time, RET feels this is a good name for a true species. This collection was made near Telluride, CO, by Ruthie Ristich (a fine mycologist and daughter of the great Sam Ristich) during a foray at the Telluride Mushroom Festival. The original collection made by AHS was from New Mexico, but still in the Four Corners area. A collection was recently made in Colorado (Winter Park area, quite distant from the Four Corners, about an hour northeast of Denver) during an Annual NAMA Foray.


Photo by R. Ristich growing in situ.
Photo by B. Bunyard.

Proposed Names

93% (3)
Eye3 Eyes3
Recognized by sight: Pretty, orange – peach colored Amanita growing with Aspens above 8,000 feet elevation; no ring on stem, prominently saccate volva (white), no patches on cap, cap margin slightly striate. Matches AHSmith’s original description as transcribed on Rod Tulloss’s Amanitaceae website.

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Certainly had a pretty sheen to it
By: Chris May (ccmaymd)
2015-12-30 13:14:13 PST (-0800)

Not sure if I would call it metallic, but pearlescent seems to work. Similar to the shiny bits of an abalone or conch.

Thank you, Chris.
By: R. E. Tulloss (ret)
2015-12-30 13:08:30 PST (-0800)

Did the cap show any sign of a metallic sheen? This was mentioned by Barrows in description sent to AHS with Barrows’ original material.

Very best,


Inner surface of volva is distinctive
By: Chris May (ccmaymd)
2015-12-30 10:16:19 PST (-0800)

Found a single specimen of this Amanita in southern Utah in August 2015, on the east side of Boulder Mountain, under aspen. Location about 38.094, -111.359.

The really distinguishing feature of this species, for me, is the inner surface of the volva. It has a pearlescent peach color that is practically identical to the pileal cuticle. You can see this indistinctly on at least one of Britt’s photos.

I would not have dared to eat this organism on my own initiative, but I happened to be hunting that day with a fellow who seemed to know a thing or two about mushrooms, by the name of Arora. We cooked it up and it was delicious, ranking near the top of my all-time favorites list. (Sorry Rod, next time I find it I will dry some material for your herbarium.) He said the sweetish flavor was similar to A. velosa, which I’ve not yet had the pleasure of tasting. I detected no trace of bitterness.

I will definitely be looking for this one from now on.

Thanks, Danny
By: R. E. Tulloss (ret)
2012-08-18 11:15:23 PDT (-0700)


a rough approximation
By: Danny Newman (myxomop)
2012-08-18 10:50:07 PDT (-0700)

North: 37.9304
South: 37.9273
East: -107.8510
West: -107.8548

elevation from 9600-9750 ft.

A couple of relevant links…
By: R. E. Tulloss (ret)
2012-08-18 10:27:07 PDT (-0700)



Note (again) that my herbarium is being made available on-line by Dr. Scott Bates at MyCoPortal.org in the near future. This will provide for the ability to search for labels of collections that are mentioned in the “material examined” data fields on the WAO website’s “technical” tabs. In this case there are collections that may represent both of the two names cited above.


I guess then a lat./long. for the collecting site is possible?
By: R. E. Tulloss (ret)
2012-08-18 10:16:25 PDT (-0700)


Ruthie’s Telluride host
By: Danny Newman (myxomop)
2012-08-18 09:37:41 PDT (-0700)

sent me some additional pix as well. she says they were found beside her home in Mountain Village.

Ruthie sent me some additional pix.
By: R. E. Tulloss (ret)
2012-08-18 09:32:29 PDT (-0700)

I advised her that the material should be dried quickly once it is sporultating.

This is another very interesting find. It certainly seems to belong in the group close to A. crocea, and I look forward to reviewing the material along with two previous collections from Colorado (NAMA) and one collection from an earlier NAMA foray in NM.

Very best,


Created: 2012-08-18 06:31:12 PDT (-0700)
Last modified: 2018-01-02 07:30:32 PST (-0800)
Viewed: 1231 times, last viewed: 2018-12-05 17:15:21 PST (-0800)
Show Log