Observation 48426: Amanita brunnescens G.F. Atk.

When: 2010-07-11

Collection location: Oneida Co., New York, USA [Click for map]

Who: Eric Smith (esmith)

No specimen available

Proposed Names

19% (3)
Recognized by sight: Under oak and beech.
62% (3)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Some notes
By: Eric Smith (esmith)
2010-07-13 16:39:59 PDT (-0700)

I uploaded larger images with better color.
At this spot I observed about ten specimens, including one growing from a well rotted stump in pic #1.
After looking again and reading some descriptions, I can say that some of these exceeded the maximum cap dimensions for Amanita aestivalis. I can plainly see the streaking in image #2. These were not pure white as in this observation.
These had more of a dirty or cream color.

The bulbs did have clefts, but not the typical shoulder as in A. brunnescens. They had (layered?) thick volval material (arms?) AND I was able to peel back a thin, membranous layer over that on one with my fingers. Confusing.

I would say A. brunnescens var pallida, but that seems, well “invalid” for lack of a better word, as I have seen pallid forms growing next to dark forms like this observation.
Note that the bulb on the pallid one isn’t as accentuated as the dark one. Coincidence?

That wasn’t the case with this observstion. All mushrooms in this twenty foot radius were pallid.

Both species
By: Erlon (Herbert Baker)
2010-07-13 16:32:43 PDT (-0700)

have cleft bulbs and are likely conspecific, not every specimen will show this feature.

If they are the same, than A. brunnescens takes priority.

The base of the stipe
By: Dave W (Dave W)
2010-07-13 04:40:03 PDT (-0700)

appears to lack the cleft(s) typically associated with brunnescens types.

Created: 2010-07-11 17:11:12 PDT (-0700)
Last modified: 2013-06-29 20:06:57 PDT (-0700)
Viewed: 101 times, last viewed: 2017-06-07 18:37:50 PDT (-0700)
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