Parmelia Sulcata?

Parmelia Sulcata?

Observation - Parmelia Sulcata? - UK and Ireland. Description: Grey-green folios lichen with large lobes on sycamore tree. Fruits appear to be absent, but I thought I saw 'net-like' soredia. However lobes appear a little wrinkly - could it be flavoparmelia spp. (soredians?). In any case, lichen does not appear to be

Grey-green folios lichen with large lobes on sycamore tree. Fruits appear to be absent, but I thought I saw 'net-like' soredia. However lobes appear a little wrinkly - could it be flavoparmelia spp. (soredians?). In any case, lichen does not appear to be well developed.