Observation 49939: Amanita amerimuscaria Tulloss & Geml nom. prov.
When: 2010-08-08
No herbarium specimen

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Very good points, Dave.
By: Eric Smith (esmith)
2010-08-09 17:52:06 PDT (-0700)

.

I’ve not ever IDed frostiana.
By: Dave W (Dave W)
2010-08-09 17:13:25 PDT (-0700)

But the stipe base on 49939 appears to not have the bulb with well defined collar which I see in photos of frostiana. Phillips says that frostiana has cap with “distinctly lined margin.” Also, the pure white pointed warts on the cap seem muscaroid.

A. frostiana
By: Hamilton (ham)
2010-08-09 16:51:26 PDT (-0700)

Probably.

I can’t tell
By: Eric Smith (esmith)
2010-08-09 16:48:04 PDT (-0700)

if this mushroom is A. frostiana, A. amerimuscaria or A. flavoconia. The stature of this mushroom is that it would fit inside the stem of a “normal” sized A. amerimuscaria. The margin is striate, but not terribly so. The stem, annulus and the volval material on the bulb are very pale yellow, while the volval material on the cap appears white. The bulb doesn’t look anything like what I normally see on A. flavoconia. It’s much more muscaroid. I never see such an abrupt and deep orange disc on what I call A. amerimuscaria. I think this may be A. frostiana.

Created: 2010-08-08 18:18:10 PDT (-0700)
Last modified: 2010-08-10 00:28:09 PDT (-0700)
Viewed: 60 times, last viewed: 2016-03-24 03:26:53 PDT (-0700)
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