Hypogymnia physodes

On a large dead tree rotting away in the quiet forest along the Diemelsteig hiking track near Heringhausen, Germany. This is Hypogymnia physodes, in Dutch Gewoon schorsmos.

I also found a nice compact spot of what I assume is the same Hypogymnia, on a dry old wooden post along a path nearby, in open landscape, the path downhill cutting through pastures.