Missing the mark

Pulling into another parking space, I notice the big rocks used as a border. (So much better than yellow-painted cement!) My eyes are drawn to the bullseye lichen circles on many of them, and I take yet another photo.

Bullseye, Placopsis sp, probably Placopsis gelida.

So blatant are these, such attention hogs, that I usually forget to look at the rock surrounding them. Big mistake.

Area to the right of the bullseye.

The whole rock is infested with lichen! Some of these are obviously baby bulleyes, but what are those orange smears? And the dark blue smudges? And those dark chocolate squares?

Area to the left of the Bull's-eye.

I think those little grey pits may be another stage of bullseye. Or maybe not.

Another patch. Probably a different species of Placopsis. Surrounded by pale green lichens.