Observation 319092: Amanita polypyramis (Berk. & M.A. Curtis) Sacc.

When: 2017-08-16

Collection location: Santo Domingo Ocotitlán, Tepoztlán, Morelos, Mexico [Click for map]

Who: Mycorhizing

No specimen available

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I went through the herbarium data base.
By: R. E. Tulloss (ret)
2018-06-11 09:02:16 PDT (-0700)

I have a minimum of four collections from Mexicao from the states of Jalisco, Mexico, and Oaxaca. So I have a basic set of samples. We’ll have to see how we do on DNA extraction, etc.

I am setting up a set of polypyramis collections to be sampled later this year or next spring. It should provide a good wide geographic range from Cape Cod in the northeast to Oaxaca in the southwest. I restricted the US material to one sample per state. If there is a reason to expand the samples to include more collections, I have over 40 that I can turn to; but some of them date back to the early 1980s. Linas has trouble with DNA extraction from the older collections in my herbarium. These collections date back to the early days of the herbarium and saw more humidity and higher temperatures before the herbarium was created with separate cooling/heating/hudmidity contrl.

Very best,

Rod

Thank you, Rod
By: I. G. Safonov (IGSafonov)
2018-06-10 20:02:57 PDT (-0700)

Great info. Polypyramis is perhaps my favorite lepidella. Something about its clean and simple look and the bright white color. Of course, size doesn’t matter. :-)
If you don’t have a Mexican collection, maybe Alan R. can help out on one of his trips across the border.

One collection of polypyramis from my herbarium has yielded sequences from four loci.
By: R. E. Tulloss (ret)
2018-06-10 19:05:25 PDT (-0700)

That collection is from the U.S. state of Maryland.

Rod

It would be interesting to see fi the genes differ between Mexican material and
By: R. E. Tulloss (ret)
2018-06-10 18:57:27 PDT (-0700)

U.S. material. Morphologically, we have evidence that the species that the species occurs in both countries. We should explore the molecular side of the story. There is a third group of collections from the Chiricahua Mountains in Arizona. Amanitasp-AZ13”. Mexican materiashould be compared genetically to the Arizona material and the material from eatern U.S.

http://www.amanitaceae.org?Amanita%20sp-AZ13

Is thre any material available from material that is depicted here with its animal friends?

Very best,

Rod

I agree, Igor.
By: R. E. Tulloss (ret)
2018-06-10 18:49:53 PDT (-0700)

At the highest magnification, I think is see the fine lines of warts in wavy lines around the bulb. The sheer size is also a compelling argument.

http://www.amanitaceae.org?Amanita%20polypyramis

Very best,

Rod Tulloss

Created: 2018-06-08 18:41:56 PDT (-0700)
Last modified: 2018-06-11 09:02:16 PDT (-0700)
Viewed: 61 times, last viewed: 2019-05-13 16:01:36 PDT (-0700)
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