Observation 61293: Amanita brunnescens G.F. Atk.

When: 2010-08-15

Collection location: Montgomery Co., Maryland, USA [Click for map]

Who: Martin Livezey (MLivezey)

No specimen available

Under mixed hardwoods


w/ -60 mid-range contrast
w/ -60 mid-range contrast
w/ -60 mid-range contrast
w/ -60 mid-range contrast

Proposed Names

-48% (3)
Recognized by sight
65% (4)
Recognized by sight: staining
30% (2)
Recognized by sight: The cap lacks even pallid streaks.

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Bob, You are right but
By: walt sturgeon (Mycowalt)
2011-01-05 20:41:39 EST (-0500)

Long ago I decided that radial lines of pigment and more rapid bruising are not enough to segregate this species.

From Rod’s website:
There is some question as to whether A. aestivalis is distinct from A. brunnescens G. F. Atk. Singer claimed that bruising/staining occurred more rapidly in A. brunnescens and that the radial lines of pigment often seen on the cap of the latter species are not ever to be found in A. aestivalis.—R. E. Tulloss

By: Eric Smith (esmith)
2011-01-05 20:16:29 EST (-0500)

Do you have a reference for that? As far as I know, synonymy is only suspected.

Amanita brunnescens
By: walt sturgeon (Mycowalt)
2011-01-04 19:11:12 EST (-0500)

Synonym is A. aestivalis

By: walt sturgeon (Mycowalt)
2011-01-04 14:04:48 EST (-0500)

Current thinking is that our common Eastern destroying angel is Amanita bisporigera. Your photo does not show the volva but the slight brown staining on the cap indicate it is possibly Amanita brunnescens (sometimes referred to as variety pallida)

Created: 2010-12-26 19:27:56 EST (-0500)
Last modified: 2012-02-27 21:53:32 EST (-0500)
Viewed: 127 times, last viewed: 2017-06-08 08:10:11 EDT (-0400)
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