Observation 25888: Amanita pseudovolvata Tulloss nom. prov.
When: 2009-09-27
Herbarium specimen reported

Notes: Found this growing under Eastern hemlock. The speciemens are very small and the vovla seem to have red staining to it the caps very yellow almost like a form of the A vaginata group but cap is thicker. spore print is white.

Proposed Names

38% (2)
Eye3
Recognized by sight: found under Eastern hemlock
ret
54% (1)
Eyes3
Recognized by sight: I suggest (see comment) that this specimen is exhibiting the yellowing syndrome. The species belongs near A. volvata in Amanita sect. Amidella.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Did you take a photograph of the specimens in cross section?
By: R. E. Tulloss (ret)
2009-09-28 07:54:12 PDT (-0700)

Eddee,

Here’s my guess. I will guess that these specimens represent Amanita pseudovolvata Tulloss nom. prov. The size and habit are appropriate for this species. Of course, the species is not yellow. However, you note that there was reddish staining. Crushed tissues in specimens exhibiting the “yellowing syndrome” in Amanita often become distinctly more red-orange than adjacent tissues. This is why I asked about a cross section. If you cut the specimens in half, you might have seen the interior flesh turn from yellow to white or have areas of red-orange against a yellow background. I have never before seen a specimen of pseudovolvata with the yellowing syndrome. I would very much like to affirm (or reject) my guess expressed in this comment. I would be happy to take a look at your dried specimen.

Very best,

Rod

Created: 2009-09-27 19:56:04 PDT (-0700)
Last modified: 2009-09-27 19:56:04 PDT (-0700)
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