Variety of lichen - in response to @dber

Hey guys,

this is just a short post in reference to Hive account@dber's recent airport adventures.
Upon reading his last post about the indigenous lichen of Geneva airport I realized that most them appeared vaguely familiar to me. So I briefly went outside and tried to capture a few quick pictures of the biodiversity of lichen going on around here.
Bear with me if I fail to provide all the details of biological classification though, in that regard I'd rather refer you to Hive account@dber himself. But it certainly is interesting to take a look a something that has been around me all along but seems to have eluded my perception almost completely.

Fig. 1: Lichen on the bark of a cherry tree

Fig. 2: Lichen on the bark of a purple-leaf plum

Fig. 3: Lichen on a boulder

Image sources: my own work
Camera: Panasonic Lumix