Collected for RET


Proposed Names

71% (3)
Used references: GSM checklist
17% (4)
Recognized by sight: Ground color on cap yellowish/tannish.

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= Observer’s choice
= Current consensus


Add Comment
The DNA from this material produce good quality nrITS an nrLSU sequences.
By: R. E. Tulloss (ret)
2018-09-13 22:10:36 CDT (-0400)

The slow staining of the stem on the younger material in the photographs and the distinctly white areas of the cap in the youngest material are consistent with the genetic match to Amanita rubescens var. alba.

Very best,

Rod Tulloss

Herbarium Rooseveltensis Amanitarum (RET) has received specimen.
By: mcmacher
2017-10-12 15:16:20 CDT (-0400)

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

Geoff, you may want to check…
By: Dave W (Dave W)
2017-06-20 22:59:49 CDT (-0400)

the discussion at obs 138348. I had forgotten about the evidence that suggests A. rubescens var. alba is not readily identifiable as per cap color.

Thank you, sir
By: Geoff Balme (geoff balme)
2017-06-11 20:12:22 CDT (-0400)

I’m on it.

Check the Amanita Studies website…
By: Dave W (Dave W)
2017-06-11 20:07:04 CDT (-0400)

for the different types of amerirubescens. They are numbered, and found at the bottom of the “Section Validae” list. This is a complex of mushroom species that vary considerably in morphology, and just how this correlates with DNA is an ongoing study. So, if you feel confused about this type mushroom, then join the crowd :-)

Yes, var. alba has a white ground color on the cap, along with the possibility of spotty reddish staining and UV scales.

By: Geoff Balme (geoff balme)
2017-06-11 19:53:16 CDT (-0400)

OK I’m starting to get this — if I go for the more creamy and blushy ones that is probably MORE the var. alba. obs. 278251. This one I’m going to log in my head from now on as the A. amerirubescens group. The photo in the GSM Checklist under the var. alba is very like these though!

Created: 2017-06-11 17:03:42 CDT (-0400)
Last modified: 2018-09-13 22:22:21 CDT (-0400)
Viewed: 84 times, last viewed: 2019-08-13 08:52:30 CDT (-0400)
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