When: 2002-01-05

Collection location: Chumash Interpretive Center, Thousand Oaks, California, USA [Click for map]

Who: Nathan Wilson (nathan)

No specimen available

Identified by sight.


Loaded from Armillaria/mellea/2002-01-05-2.jpg.
Loaded from Armillaria/mellea/2002-01-05-6.jpg.
Loaded from Armillaria/mellea/2002-01-05-5.jpg.
Loaded from Armillaria/mellea/2002-01-05-4.jpg.
Loaded from Armillaria/mellea/2002-01-05-3.jpg.
Loaded from Armillaria/mellea/2002-01-05-1.jpg.

Proposed Names

33% (3)
Recognized by sight
31% (3)
Recognized by sight

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

= Observer’s choice
= Current consensus


Add Comment
Tom Volk
By: Terri Clements/Donna Fulton (pinonbistro)
2014-03-07 21:35:01 CST (-0500)

describes the cap as honey colored and smooth and the stem as having a pointed or tapered base. See http://botit.botany.wisc.edu/toms_fungi/armkey.html#mellea


At the risk
By: Martin Livezey (MLivezey)
2014-03-07 19:44:29 CST (-0500)

of belaboring the obvious, this does not look like Armillaria mellea.

From Baumgartner & Rizzo
By: Nathan Wilson (nathan)
2014-03-07 12:23:34 CST (-0500)

Armillaria mellea is common in most regions of the state dominated by development, such as the Central Valley, the San Francisco Bay area, and Los Angeles.”

Baumgartner, K. & Rizzo, D.M., “Distribution of Armillaria species in California”, Mycologia, 93(5), 2001, pp. 821-830.

Do you have another name for this?
By: Nathan Wilson (nathan)
2014-03-07 12:17:44 CST (-0500)

This is a common species in Southern California that causes a huge amount of damage to over watered live oaks and many other trees in the Southern California gardens. My understanding from Tom Volk is that the material from urban Southern California that he tested was mated with classic Armillaria mellea (although somewhat unusually) so a new species was not created.