Observation 5120: Armillaria mellea (Vahl) P. Kumm.

When: 2007-11-22

Collection location: Golden Gate Park, San Francisco, California, USA [Click for map]

Who: Alan Rockefeller (Alan Rockefeller)

No specimen available

Notes:
I gathered this for dinner.

Images

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Proposed Names

28% (1)
Recognized by sight
87% (4)
Eye3 Eyes3
Recognized by sight: I’d have a hard time calling this anything besides A. mellea. There are no significat scales on the cap like A. ostoyae has, and the rest of the annulate Armillaria species are not caespitose.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

Add Comment
Looking more closely I’ll go with Darvin’s call
By: Nathan Wilson (nathan)
2007-11-23 11:51:01 CST (-0500)

Especially if that root in the fourth shot is from a pine not an oak.

Armillaria ostoyae
By: Darvin DeShazer (darv)
2007-11-23 11:39:48 CST (-0500)

The brown flocks on the edge of the thick, persistent annulus along with whitish cap fibrils that age into dark scales, caespitose growth. At least some of the basidia should have clamps at the base. Here is a link to a key in Mycotaxon (1987) to five species of Armillaria that I have been using along with the Volk web site. http://www.cybertruffle.org.uk/cyberliber/59575/0030/0102.htm

Created: 2007-11-23 01:32:59 CST (-0500)
Last modified: 2013-11-22 23:19:35 CST (-0500)
Viewed: 122 times, last viewed: 2018-04-28 23:50:16 CDT (-0400)