Observation 6984: Amanita ocreata Peck

When: 2008-03-07

Collection location: Petaluma, Sonoma Co., California, USA [Click for map]

Who: Darvin DeShazer (darv)

No specimen available

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Add Comment
Good point
By: Dimitar Bojantchev (dimitar)
2010-02-20 10:30:11 CST (-0500)

Good point on the base of stipe difference between A. ocreata and A. novinupta. Registered.

once you dig it up, the mystery is solved…
By: Debbie Viess (amanitarita)
2010-02-20 10:06:48 CST (-0500)

if it has a membranous sac, it’s an ocreata. novinupta often has no visible UV at its base at all, and when it does it is a suggestion of a close cup….more like a panther than an ocreata.

coincidentally, I just photographed a big beautiful patch of novinupta…MO posting to follow.

It’s not A. novinupta, in San Diego…
By: Christian (Christian Schwarz)
2010-02-20 02:46:17 CST (-0500)

we called A. ocreata colored like this the “sunkissed” form

By: Darvin DeShazer (darv)
2010-02-20 01:02:26 CST (-0500)

I’m positive of the ID. They fruit on campus, where I work and at least three times they are on MO from the same location.

Are we sure this is not A. novinupta & allies?
By: Dimitar Bojantchev (dimitar)
2010-02-19 23:05:20 CST (-0500)

I think I see some reddish tinges on the stipe and annulus. I have seen very similar such aged material in our Live Oak patches and it turned to be A. novinupta.

just saw this one…
By: Debbie Viess (amanitarita)
2008-12-09 18:38:09 CST (-0500)

if they are a regular occurence, PLEASE collect and voucher the next one(s)! the brown staining on the stipe is also unusual. an ocreata, sliced in half, usually shows chambers in the stipe. not entirely convinced that ocreata is what you have here…

Color is accurate
By: Darvin DeShazer (darv)
2008-03-08 00:33:35 CST (-0500)

Yep, the color is accurate. They pop up in Petaluma every year with an orangish ring on the cap. Take a look at observation 2559. Found two of them today under different trees.

Unusual color!
By: Nathan Wilson (nathan)
2008-03-08 00:26:41 CST (-0500)

Is that orange color in the photos really accurate? I’ve seen A. ocreata with brown tones, never that bright.