Observation 113952: Pholiota (Fr.) P. Kumm.
When: 2012-10-20
Who: zaca
No herbarium specimen

Proposed Names

-26% (3)
Eye3
Recognized by sight
28% (1)
Recognized by sight: These are dark-spored.
6% (3)
Recognized by sight
-7% (3)
Recognized by sight
57% (1)
Eyes3
Recognized by sight: If not fragile. If fragile, Psathyrella.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Yes, directly from the tree.
By: zaca
2012-10-26 17:09:27 EDT (-0400)
Is this growing directly from a tree?
By: Alan Rockefeller (Alan Rockefeller)
2012-10-26 16:56:31 EDT (-0400)

I have never seen Agrocybe do that. If it was from woody debris, Agrocybe is more likely.

Thank you all for the proposal. After my initial …
By: zaca
2012-10-26 16:54:21 EDT (-0400)

Thank you all for the proposal. After my initial wrong impression of this was Armillaria I found it very similar to some previous observations of Agrocybe.
In fact, it was a big specimen (cap with 7-8cm and stem 8-9cm long), the stem was very solid and consistent and the presence of the ring strengthened this impression. Now I had the oportunity of looking to spores and, it seems to me that it confirms that impression. I upload photos of the spores, the last one obtained after joining a drop of KOH to the preparation. For the dimensions of the spores I obtained the following values:
9.1 [10.7 ; 11.5] 13.1 × 4.9 [5.9 ; 6.4] 7.3 µm
Q = 1.6 [1.8 ; 1.9] 2.1 ; N = 27 ; C = 95%
Me = 11.1 × 6.1 µm ; Qe = 1.8
I think this can be of some species closed related to Agrocybe cylindracea.

Created: 2012-10-20 18:08:19 EDT (-0400)
Last modified: 2012-10-26 17:41:31 EDT (-0400)
Viewed: 81 times, last viewed: 2014-03-08 15:40:29 EST (-0500)
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