|Bull's-eye lichens, Placopsis sp.|
|Zooming in on one of the targets. The roughened, round structures, mostly toward the centre, are reproductive organs.|
|Another bulls'eye, on a rock higher on the shore. This one is a pale green; whether it's a different species, or just damper, I can't tell. Note the bit on the far right; it's blue-grey, and the leaf shape matches those on the previous rock.*|
|The red arrow points to the lichen. I was following the trail to Ripple Rock, at the narrow point of the channel, but stopped here.|
*Update: On INaturalist, this one has been identified as a Rockshield, Xanthoparmelia sp.