Notes:
More of these, see my other observations of this species. As with most Russulas, I am just trying my best here, using Theirs section of the Agaricales of CA.

There were a lot of these up there this week. Many with various amounts of the pinkish red, from full pink-red to fading pink, to just dull yellow with pink highlights were found, usually all interspersed under live oak. I present only a few example photos here. This seems to he behavior of this species from Theirs, that it comes up reddish, goes pinkish, and ages to dull yellow.

The taste of all of these is the same, no matter the age. Mild at first, and taking 5-10sec to build up to fully acrid. I tasted a dozen or so samples checking out the various forms here, and my tongue was buzzing for the rest of the night.

With the rain, you would be tempted to say this is just R. silvicola that is getting washed out. I don’t know, R. silvicola (form of R. cremoricolor) has a rapidly acrid taste, and more acrid than these. Also when the color washes out of R. silvicola I think I’ve seen it as different. Also these are well described as a separate species in Theirs. So, I’m going for it, until a Russula expert can set me straight here.