Observation 175265: Amanita whetstoneae Tulloss nom. prov.
When: 2014-08-24
Herbarium specimen reported

Notes: Some brown bruising on stipe after handling this, but without stains at time of harvest. Sheathing tubular volva.

The interesting thing is the distinctly striate cap margin. Upon initially encountering this, I thought I had found a large white grisette.

Wyoming Valley Mushroom Club foray.

WVMC foray.

Proposed Names

91% (2)
Eye3 Eyes3
Used references: Amanita website
Based on microscopic features: Spores somewhat elongate; some with Q > 2.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
I think if the specimen had been bigger, the cap flesh would have been…
By: R. E. Tulloss (ret)
2015-09-15 16:17:22 CDT (-0400)

thicker. This would have shortened the striations in proportion to the cap radius.

Very best,


Thanks Rod.
By: Dave W (Dave W)
2015-09-15 15:04:55 CDT (-0400)

Did you notice the (long) striate cap margin on this one?

“Proposed fungal barcode” supports the ID based on the images.
By: R. E. Tulloss (ret)
2015-09-15 13:34:21 CDT (-0400)

We have another nice sequence for A. whetstoneae.

Thanks very much, David.

Very best,


Thanks Dave,
By: groundhog
2014-10-28 17:10:00 CDT (-0400)

This material has been received and accessioned to Rod’s herbarium.

Created: 2014-08-25 08:48:05 CDT (-0400)
Last modified: 2015-09-15 15:04:15 CDT (-0400)
Viewed: 69 times, last viewed: 2017-06-18 18:04:20 CDT (-0400)
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