Observation 54217: Amanita sect. Validae (Fr.) Singer

When: 2010-09-30

Collection location: Nevado de Toluca, Mexico, Mexico [Click for map]

Who: Alan Rockefeller (Alan Rockefeller)

No specimen available

11,500 feet elevation, under Pinus hartwegii.

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Amanita sp-M30
By: R. E. Tulloss (ret)
2010-10-02 14:49:36 PDT (-0700)

The material I have is from the La Malinche (or Malintzi) volcano in Tlaxcala edo. I when I have the time I will post pics and as much data as I can put together at this page in the new Amanitaceae site:


Very best,


Both varieties of flavoconia get red stains
By: R. E. Tulloss (ret)
2010-10-02 06:30:31 PDT (-0700)

When I was in Costa Rica, I noticed that several specimens of A. flavoconia var. inquinata would have a pink spot in the interior of the stipe’s base. I have seen this in A. flavoconia also.

More work needs to be done on this Mexican species. I have several collections of it, but I can’t remember whether I’ve done any microscopic work on it. I’ll check. If I have data, we’ll get it on-line at www.amanitaceae.org sometime in the future. It’s fine to bug me on this topic, although (with the current workload) I’m not sure whether I can speed up any further.

More later, if I find any data…

Very best,


By: Alan Rockefeller (Alan Rockefeller)
2010-10-01 20:07:08 PDT (-0700)

There was a very slight red stain at the center of the base of stem in two of the mushrooms. It was really faint but definitely there.

I think I collected this in Mexico…
By: R. E. Tulloss (ret)
2010-10-01 19:48:03 PDT (-0700)

If I’m write, it didn’t stain like flavorubens although that name was used by some Mexican mycologists for this mushroom. I agree it is not a variety of A. flavoconia. It was often quite robust and was collected at rather high elevations…as you report.

Very best,


More robust
By: Alan Rockefeller (Alan Rockefeller)
2010-10-01 17:40:45 PDT (-0700)

These mushrooms were consistantly more robust than the other collections we are calling Amanita flavoconia var. inquinata. Also the cap is a darker orange than the others.

Created: 2010-09-30 22:38:15 PDT (-0700)
Last modified: 2010-10-02 15:38:36 PDT (-0700)
Viewed: 148 times, last viewed: 2017-06-07 23:02:03 PDT (-0700)
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