Observation 87453: Russula xerampelina group
When: 2011-09-24
Herbarium specimen reported

Notes: This beautiful Russula is also common in the Yosemite area and can be mistaken for any of the other pale, mild Russula:

http://mushroomobserver.org/obs/87448
http://mushroomobserver.org/obs/87450
http://mushroomobserver.org/obs/87451

Careful collecting will easily show that this is a species in the Russula xerampelina group. In fact this is what I call genotype 2 of Russula xerampelina in California – it is a green species, unlike Genotype 1, which is the classic red/purplish Russula xerampelina.

The typical form is much darker grayish-green than this one (look at the additional photos below), but it goes to show that these edible Russula can be disturbing to the mind of the taxonomist. This species is fairly well distributed in the PNW, but fruits co-located with Genotype 1. About 1-2 base pairs in the nrITS separate them…

Collection: DBB46378

Images

198490
198491
See the grayish-purplish tinges and certainly the typical bruising in brown.
198492
Yosemite collection of same species (2008 summer)
198493
Yosemite collection of same species (2008 summer)
198499
Yosemite collection of same species (2008 summer)
198500
Same species, collection from Idaho.

Proposed Names

82% (1)
Eye3 Eyes3
Recognized by sight
Used references
Based on microscopic features

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Eye3 = Observer’s choice
Eyes3 = Current consensus

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Created: 2012-02-07 00:23:53 GMT (+0000)
Last modified: 2013-12-03 18:25:27 GMT (+0000)
Viewed: 27 times, last viewed: 2014-09-15 17:30:36 BST (+0100)
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