Observation 261674: Amanita rhopalopus Bas

collected for RET
the turnip bulb, lack of volva on the bulb and somewhat red-staining habit have me thinking A. daucipes. There was also a fairly strong foul odor.


flash on measure
flash on measure

Proposed Names

-28% (1)
Used references: www.amanitaceae.org
61% (2)
Eye3 Eyes3
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Herbarium Rooseveltensis Amanitarum (RET) has received specimen.
By: mcmacher
2017-10-12 14:57:16 CDT (-0400)

We have received the dried specimen. Thank you. It is being accessioned in Herbarium Rooseveltensis Amanitarum (RET).

Thank you!
By: Geoff Balme (geoff balme)
2016-11-17 08:57:06 CST (-0500)

I’m still struggling with that, I’m just going to have to see a lot more of them side by side I guess. More leg-work!

Last night and again this morning (re-checking) the volva seems fluffy to me.
By: R. E. Tulloss (ret)
2016-11-17 08:54:52 CST (-0500)

And the “bare” part of the cap in the “post excavation” photo show no underlying hyphal layer for the volva. I’m inclined to go for rhopalopus over ravenelii.

Very best,


Falling back to my old favorites
By: Geoff Balme (geoff balme)
2016-11-17 08:21:23 CST (-0500)

A. ravenelii seems fair to me. Maybe there are some “face on mars” type “warts” up there. And the “chlorine” or decaying protein smell can be there for that one too. But I can’t rule out A. rhopalopus.

That is one healthy bulb.
By: R. E. Tulloss (ret)
2016-11-16 21:43:53 CST (-0500)


ah, I have certainly seen those!
By: Geoff Balme (geoff balme)
2016-11-16 21:14:24 CST (-0500)

I’ll go back to the notes and see what I think fits better.
I really liked the turnip bulb! :)

Amanita daucipes has warts with a strong “grain.”
By: R. E. Tulloss (ret)
2016-11-16 18:06:20 CST (-0500)

The volva on the pileus is composed of vertically oriented chains of cells. This is so pronounced that when the warts are created by cap expansion, the warts often have nearily vertical sides. Even to the extent of patches like little cakes or fine warts that are needle like. Some of the warts on these caps would not fit with the above description. A few seem to have nearly vertical sides. None of them are really pinkish.

Very best,


Created: 2016-11-16 12:26:42 CST (-0500)
Last modified: 2018-01-09 11:19:01 CST (-0500)
Viewed: 87 times, last viewed: 2018-01-09 11:58:15 CST (-0500)
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