Observation 48087: Amanita Pers.

When: 2010-07-04

Collection location: Hawn State Park, Sainte Genevieve Co., Missouri, USA [Click for map]

Who: Patrick Harvey (pg_harvey)

No specimen available

Species Lists



Proposed Names

24% (2)
Recognized by sight: Not tested with KOH
44% (2)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Patrick Harvey (pg_harvey)
2011-05-13 10:02:10 CDT (-0400)

Yes, these were white all over. I did not have KOH, if I find another like it I’ll try that, & look for the yellow. It was VERY dry leading up to that foray. I’ve previously found what I thought to be A. bisporagera here, much larger:


The fragments are some other mushroom, they are NOT cape of these two.

Are the fragments assumed to be part of the same species as the complete specimens?
By: R. E. Tulloss (ret)
2011-05-12 20:21:28 CDT (-0400)

If Patrick thought this was A. bisporigera, I would assume that the caps on the two complete specimens would have been white. Patrick, do you have a shot of the tops of the caps? Did you try a drop of KOH solution on the either of the two guys in the middle of the picture? If there were specimens, it would be interesting to know about spore shape. There is a very small, white, member of the Phalloideae in the SE US called A. virosiformis, which would match up with a quarter pretty much as shown in the photograph. On the other hand, bisporigera specimens can be small; and I suspect that drought would contribute to limiting the size of the mushroom.


Created: 2010-07-04 19:08:10 CDT (-0400)
Last modified: 2018-10-29 13:48:21 CDT (-0400)
Viewed: 147 times, last viewed: 2018-08-08 21:05:07 CDT (-0400)
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