Observation 172425: Amanita rhacopus Y. Lamoureux nom. prov.

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By: Dave W (Dave W)
2016-05-20 14:59:44 CDT (-0500)

Debbie, Naomi, and Rod.

This seems to be a very common species around here. I see it in all stages of development. Look at this large button obs 217415.

wouldn’t it be nice …
By: Debbie Viess (amanitarita)
2016-05-20 12:06:10 CDT (-0500)

if Yves would actually publish the name for this more and more better known and visually recognizable species?

Thanks for sharing your lovely collection with us, Dave.

I vote less nom. prov.s and more sp. novum!

Hi Dave,
By: groundhog
2016-05-20 10:19:37 CDT (-0500)

We have received DNA (both nrITS and nrLSU) for this material that definitively identifies this as Amanita rhacopus.

Thanks!

Naomi

Thanks Dave,
By: groundhog
2014-10-28 15:40:45 CDT (-0500)

This material has been received and accessioned to Rod’s herbarium. We have also scheduled it for DNA sequencing.
-Naomi

I forgot to say, “Thanks.”
By: R. E. Tulloss (ret)
2014-08-04 11:18:42 CDT (-0500)

I’ll look forward to the dried material. Thank you.

Very best,

Rod

Yes, I saw the unusual development of the “amerifulva.” EDITED/CORRECTED
By: R. E. Tulloss (ret)
2014-08-04 11:14:07 CDT (-0500)

The cap looks “hammered” (malleate) and the volva broke up into flakes of uncooked oatmeal.

Rod

This one will be in the next package.
By: Dave W (Dave W)
2014-08-04 08:16:16 CDT (-0500)

Looks like a fairly young one, and the weather has been dry. So the volval sac is slower than usual to crumble.

Did you see the unusual development on the volva of this amerifulva? obs 172379

It’s cool that so much of the volval limb is still decorating the lower stem.
By: R. E. Tulloss (ret)
2014-08-04 08:10:15 CDT (-0500)

First of all, Dave, thanks for the box of dried material that you just sent. It is much appreciated. When Naomi is back from her travels, we’ll get the material accessioned in the Roosevelt herbarium.

The present specimen (this observation) is unusual for rhacopus (given my limited knowledge) in having this flaring ring of gray, submembranous volva, but it is seen in other taxa of the “rhacopus group.”

I’d like to get a chance to see what this collection can tell us about itself.

Very best,

Rod

Created: 2014-08-04 07:28:36 CDT (-0500)
Last modified: 2014-08-04 07:28:42 CDT (-0500)
Viewed: 70 times, last viewed: 2016-10-25 17:56:45 CDT (-0500)
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