Observation 205479: Amanita sect. Amidella
When: 2015-06-01
No herbarium specimen

Notes: Cap: 5 cm
Stem: 8.5 cm
mixed oak woods

Images

524218
2015-06-01__ga_KR 033.jpg
524219
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524220
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524221
2015-06-01__ga_KR 036.jpg
524222
2015-06-01__ga_KR 037.jpg
524223
2015-06-01__ga_KR 038.jpg
524224
2015-06-01__ga_KR 039.jpg
different specimen = older; 0.4 m from above.

Proposed Names

28% (1)
Eye3
Recognized by sight
44% (2)
Eyes3
Recognized by sight: See comment.

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

Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

Add Comment
I’ll vote with David.
By: R. E. Tulloss (ret)
2015-06-02 17:21:39 PDT (-0700)

The species of section Amidella generally have one or more inner layer(s) of the universal veil that are/is friable and can be left on the cap. The outer layer(s) are quite robust and remain as a sack on the stem base (as in the present case). Usually the staining reaction in this section is pink at first becoming brick-colored (brownish red). A dark brown is something I’ve never seen. There are some taxa of section Amidella that stain very little and remain rather pale in age (e.g., A. whetstoneae and A. peckiana are two of these). I only know of one species that has a thin membranous partial veil when young (it disappears rather quickly), and that is peckiana. I spent years working on this group before the advent of molecular methods. It would be very interesting to see what molecular data would do to my provisional and code numbered taxa.

Very best,

Rod

I’m wondering…
By: Dave W (Dave W)
2015-06-02 09:26:58 PDT (-0700)

if the last photo shows a mushroom different from what is seen in the first few photos? The cap is striate in the last (bottom) photo. The striations would strongly lead away from section Lepidella. Also, the strong brown staining on the cap in the last photo suggests Amidella to me.

The volva appears to be saccate and collapsed onto the stipe base. I believe a volva appearing as such may be associated with either Amidella or Lepidella. So I wonder if the mushroom seen in the top photos may be a section Lepidella specimen that has lost its annulus…?

Created: 2015-06-01 19:54:20 PDT (-0700)
Last modified: 2015-06-02 17:14:29 PDT (-0700)
Viewed: 51 times, last viewed: 2015-06-02 20:40:52 PDT (-0700)
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