Not sure if this is a lichen or fungus?
No interactions present.
Likely has shifted to mine, which is suprising as I have added my agreement to the other, but I have no desire to steal 'points' from Murdo (Syrphus).
Doing so however, brings this post into Other Observations
I came here because I read ALL the Trentepohlia poste before adding my own here http://www.ispotnature.org/node/633539
Lat/Lng: 51.212319605198, -1.48281687485
OS grid ref: SU362460