Observation 106342: Amanita mutabilis Beardslee

When: 2012-08-20

Collection location: Delaware Shore, Delaware, USA [Click for map]

Who: Martin Livezey (MLivezey)

No specimen available

On dunes near coast: Pale cap with pearly luster, minimal flocose material /warts on cap, otherwise very smooth, sometimes with pile of white sand on top. Gills and stipe white, annulus prominent, voval sac and bulb present. White sterile margin very thin, gills appear to be chambered at margin.
Vertical striations on stipe above annulus.

Proposed Names

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
The red stain on the last
By: Martin Livezey (MLivezey)
2012-08-21 19:00:44 PDT (-0700)

photo seems an aberation, but I can probably check /collect tomorrow. I have never heard of that type of staining – except possibly on A. rubescens…, Which I will also post tomorrow. It is definitely a unique subtype compared to what I have seen elsewhere.

Is that a red stain on the stem in the last photograph?
By: R. E. Tulloss (ret)
2012-08-21 12:59:08 PDT (-0700)

Did you cut the flesh and seen a raspberry sherbert red stain?

If you have the material wrap it in wax paper and then quickly open the wrapper and smell the collected odor. Is it like licorice(anise)?

I think you may have Amanita mutabilis.


Very best,


Created: 2012-08-21 12:07:25 PDT (-0700)
Last modified: 2012-08-21 13:01:18 PDT (-0700)
Viewed: 44 times, last viewed: 2017-07-23 06:15:40 PDT (-0700)
Show Log