Apologies for not knowing the type of tree this lichen is growing on
Caution: Do NOT use iSpot to identify fungi to eat!
Some fungi are very poisonous so a mistaken ID could have serious consequences.
No interactions present.
I agree that there is a Flavoparmelia sp. and Parmotrema perlatum here. Parmelia (probably P. sulcata) and Hypotrachyna revoluta also appear to be present.
I think there are at least 8 foliose lichens here. I agree with those already suggested.
Possibly there are two Flavoparmelia species, yes to F. caperata but also a flatter thallus that has a definite air of F. soredians about it; there is Hypogymnia physodes, and, maybe [heightened imagination on] Hypotrachyna afrorevoluta [heightened imagination off] as well as H. revoluta. Then there is some nasty Melanelixia type thing lurking at the left.
What you need is a dollop of nice, local, traffic or agrochemical nitrogen pollution, and you can get rid of all this confusing biodiversity and have a tidy trunk yellow with Xanthoria and grey with Physcia spp. Makes lichenology so much simpler.
Lat/Lng: 50.4708, -3.5069
OS grid ref: SX931645