Rock Jasmine - Androsace occidentalisMinnesota Wildflower page best sums up this plant ". . . and is only of interest to those who celebrate the diversity of nature".
I think the brown streaks in the above picture are little moss plants starting to grow over the lichen.
Rock-shield Lichen - Xanthoparmelia sp.
Rock-posy Lichen - Rhizoplaca sp
Leather Lichen - Dermatocarpon sp
The dark brown lichens.
Maybe a species of Dust Lichen (Lepraria). Crustose lichens to offer a lot of id features to the casual observer!