Observation 4666: Russula Pers.

When: 2007-10-27

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

Who: Douglas Smith (douglas)

No specimen available

Found in among redwood, Douglas fir and Sitka spruce. These were fairly small, caps varied from 3-6 cm in size. The stipe was soft, and could be bent without breaking. The taste was acrid, and gills white in age. The caps are a combination of many pale colors, mostly grey, green, and rose red shades.

The first micro shot here is at 1000x, 1 micron per division, with Meltzer’s showing the anyloid warts. The warts are fair size, but I’m not sure I see much of a reticulum. Looking at 7 spores I get an ave spore size of 8.1 × 6.4 microns.

The second shot is of the gill edge at 400x, mounted with Meltzer’s, 2.5 microns per division. The clear cells are cheilocystidia, and there are a few 4 spored basidia, one with the spores just forming.

Species Lists


Proposed Names

-28% (1)
Recognized by sight
83% (1)
Recognized by sight: I find this group of Russula particularly tricky, but since R. fragilis is supposed to have reticulate spores (see Fungi of Switzerland 6 for example), I think this observation can’t be that.

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= Observer’s choice
= Current consensus


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