Observation 211145: Russula Pers.
When: 2015-07-21
No herbarium specimen
0 Sequences

Proposed Names

57% (1)
Eye3 Eyes3
Recognized by sight: cap and stem stain orangish, forked narrow gills, mild odor and taste, conifer duff (red pine, hemlock and balsam fir) and birch
56% (1)
Used references: Arora, Mushrooms Demystified. In wet weather or very dry, Lactarius may not have latex. I saw no mention of the stipe being broken, so this is just a hunch.
29% (1)
Recognized by sight: velvety blue green depressed cap with buff margin, cream forked gills, mild odor and taste, specimens under water in overnight rains
Used references: Key to NA Russulas Kibby and Fatto and MO obs 106785

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Hi Martin
By: Terri Clements/Donna Fulton (pinonbistro)
2015-07-25 07:07:54 PDT (-0700)

I wish I had found these in better condition. But the blue green minutely hairy cap, forked cream gills, white stem and mild odor and taste point to Group 27 in the Kibby/Fatto key: cyanoxantha, heterophylla, redolens and virescens. I think the first three can be ruled out (smooth cap in the cyanoxantha and heterophylla and strong odor in redolens). R. virescens (parvovirescens) has all of these characters including the minutely hairy cap. See also the first and last photos in MO obs 107458.


Hi Terri, R. parvovirescens
By: Martin Livezey (MLivezey)
2015-07-24 16:03:58 PDT (-0700)

is a definite favorite of mine. I think of it as having a very large blue-green cap:


As you work your way down toward R. virescens and R. variata, I tend to get lost. But I don’t know the first two to have forked gills, but R. variata can. You need to know more than I to make even that determination. But the presence and documentation of forked gills is always a plus.


Yes. The cap color is blue-gray in R. parvovirescens.
By: Daniel B. Wheeler (Tuberale)
2015-07-24 08:57:39 PDT (-0700)

But the cap color of this obs. has a base of dull brown. The tomentosum is of small blue-gray hairs on the cap. On much of the cap this has been washed-away by rain drops, but still survives in other areas.

Actually R. parvovirescens has a blue gray velvety cap.
By: Terri Clements/Donna Fulton (pinonbistro)
2015-07-24 06:29:02 PDT (-0700)

Not sure what you mean by gladules on the cap but it looks to me like the cap is breaking up in the blow up of images 42 and 54. Perhaps submersion under water has affected the development of these specimens. The color and texture of the cap caught my eye and should help in the ID. I’ll keep looking. Thanks for the input.


The light-colored blue-gray tomentosum
By: Daniel B. Wheeler (Tuberale)
2015-07-23 21:54:34 PDT (-0700)

of the cap, plus the apparent gladules on the cap seem unusual for Russula. To view this it is necessary to enlarge the first photo to maximum.

Created: 2015-07-22 14:21:16 PDT (-0700)
Last modified: 2015-07-24 12:54:40 PDT (-0700)
Viewed: 74 times, last viewed: 2017-06-20 09:10:17 PDT (-0700)
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