Cladonia fimbriata

Low, near the soil on the sunny side of a tree on a vista overlooking the Diemelsee valley. I concluded it's a Cladonia, but was unsure about the subspecies, it's almost similar to Cladonia caespiticia, in Dutch Greppelblaadje.

Laurens Sparrius pointed out in his astute comments that it's another specimen of Cladonia fimbriata, in Dutch Kopjes-bekermos