Foliose lichen on tree

Foliose lichen on tree

Observation - Foliose lichen on tree - UK and Ireland. Description: Light green foliose lichen growing on ash tree. Branching, wide lobes ending in inflated-looking ‘mini-fingers’. Brown underneath ends of lobes. Black spots (pycnidia?) near ends of lobes. Possibly Hypogymnia physodes.

Light green foliose lichen growing on ash tree. Branching, wide lobes ending in inflated-looking ‘mini-fingers’. Brown underneath ends of lobes. Black spots (pycnidia?) near ends of lobes. Possibly Hypogymnia physodes.