Observation 91557: Amanita vernicoccora Bojantchev & R.M. Davis

When: 2012-03-30

Collection location: Annadel State Park, Sonoma Co., Santa Rosa, California, USA [Click for map]

Who: Dan K. (Dan K.)

No specimen available

Found 2 growing under an oak (not sure what species of oak so I am uploading a picture of the host tree). I think it might be A. velosa but not sure as I have never hunted mushrooms in California before, it is not as tan as most of the pictures I have looked at, so I assume A. ocreata is a possibility. Was found growing on the drip line of the oak.

Proposed Names

11% (2)
Recognized by sight: Typical Amanita features, growing with oak

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
sect. Caesareae
By: R. E. Tulloss (ret)
2012-04-02 19:17:10 CDT (-0500)

Even with the margin strongly incurved, it is distinctly striate. This suggests that the species is not a member of sect. Phalloideae (hence, not A. ocreata). The ring on the stem (certainly in North America) along with what appears to be a saccate or limbate volva indicates the species cannot be in sect. Vaginatae like A. velosa. Unfortunately we don’t have a clear indication about the nature of the stipe base. A photo of a cross section (top to bottom) would show whether the bottom of the stipe has a bulb or not.

It is a guess, but I would think from what we know of the species in California and the time of year that this is a species in sect. Caesareae. The yellow tint in the cap is distinct in several photos. This suggests A. vernicoccora is a possibility.


Created: 2012-04-02 15:12:53 CDT (-0500)
Last modified: 2012-09-06 21:00:23 CDT (-0500)
Viewed: 69 times, last viewed: 2017-06-12 20:35:45 CDT (-0500)
Show Log