If you notice any pictures that are mis-identified, can identify any of the unknown ones or spot extra species in the background then please use the comments to set me right, or email me (address on the main Birds and Beer blog).
Lecanora albescens (this one has been identified by the county recorder)
Xanthoria parietina (the yellow one. The greeny one may be Evernia prunastri)
I'm not sure whether these black growths are actually lichens