Observation 209327: Amanita clarisquamosa (S. Imai) S. Imai
When: 2015-07-09
Who: lxjfx
No herbarium specimen

Notes: Growing in mixed woods

Volva: large, saccate

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Thank you very much for the information…
By: R. E. Tulloss (ret)
2015-07-09 11:22:10 EDT (-0400)

and for the added image.

Very best,

Rod

thanks
By: lxjfx
2015-07-09 09:45:13 EDT (-0400)

> By color of the volval remnants on the caps (per the names of the species)?

Yes, and also by brownish powdery surface of the stipe.

> Do you have an image of the base of the stem for the mushroom in this observation?

I uploaded the image of volva which was dropped out from the stipe.

Another very nice pair of images.
By: R. E. Tulloss (ret)
2015-07-09 08:50:17 EDT (-0400)

Yang (in his thesis, 1997) showed morphological methods for separation of Amanita clarisquamosa and A. avellaneosquamosa. When you have the opportunity to see fresh material, how do you distinguish them by sight? By color of the volval remnants on the caps (per the names of the species)?

Do you have an image of the base of the stem for the mushroom in this observation?

Amanita section Amidella is the first sectional group that I started to study (three decades ago) after I first met Dr. Bas. I worked mostly on North American material. We clearly have several unnamed species in North America. Unfortunately, I was too inexperienced to do the job well at that time; so I have a lot of notes that probably need to be done over. Nevertheless, I have a long interest in this group.

If you have time to tell me a little more about your identification approach, I would be very interested. If you’d like to do it off line, you can respond by the MO email function (click on my name on this page).

I thank you in advance for your response.

Very best,

Rod Tulloss

Created: 2015-07-09 05:54:58 EDT (-0400)
Last modified: 2015-07-09 09:28:03 EDT (-0400)
Viewed: 57 times, last viewed: 2016-11-01 02:28:46 EDT (-0400)
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