Powdery algae covering large area of lower trunk of ash tree
No interactions present.
I've never had it confirmed by an expert phycologist, but I was told years ago that this orange stuff is Trentepohlia, so for what its worth: I agree. It is supposed to smell of violets but I've never managed to pick that up.
Lat/Lng: 51.1, -2.0
OS grid ref: SU0642