Thanks. I think you're right on that; I had some help from a friend who feels sure it's Hypogymnia physodes.
Many thanks! I've got another one for you if you've got the time. An old hunter once told me this is called 'Bark lichen' but I've not been able...
I've been mistakenly calling this 'Caribou Lichen' for some time now and I'd love to know what it actually is. Found growing on loads of balsam...
