Barry photographed these very pretty lichens, and Colin Freebury very kindly identified them for us.

Colin says the yellow lichen "is probably Candelaria concolor", and he says that if one looks at this with a hand lens it will reveal "tiny, delicate lobes with marginal, yellow soredia (little balls comprised of fungal hyphae wrapped around algal cells)." The orange lichen in the middle is "is probably Xanthomendoza fallax." Again, he notes that using a hand lens we "should see that the lobe cortices are separated and within the gap appear orange soredia (called labriform soredia)."

The whitish grey lichen on the left, Colin says, "could be Physcia aipolia or Physcia stellaris."