Observation 87453: Russula xerampelina group

When: 2011-09-24

Collection location: Yosemite National Park, California, USA [Click for map]

Who: Dimitar Bojantchev (dimitar)

Specimen available

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


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


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

Proposed Names

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

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
No one has commented yet.

Created: 2012-02-06 18:23:53 CST (-0600)
Last modified: 2013-12-03 12:25:27 CST (-0600)
Viewed: 29 times, last viewed: 2017-08-31 17:16:56 CDT (-0500)
Show Log