Collection location: Schmitz Preserve Park, Seattle, King Co., Washington, USA [Click for map]
Id made using Ben Woo’s Key to the Pacific Northwest Russula Species… The whitish to cream coloration, acrid taste and white spore print distinguish this deciduous associate.
Russula cremoricolor is not acrid like this species (at least not nearly as strong and biting) while my specimen most definately was. The margin is also somewhat crenulate… though this is only a so-so distinction. I am familiar with The russula 2 key but I don’t have it at home… I will double check at the lab tomorrow!
What are the differences between this and R. cremoricolor? And did you check out the Russula 2 pdf, in the NW key council site? It is much more detailed (although not yet complete).