Crustose to id... Catinaria?

[lettuce]

At first glimpse it seemed an easy species to identify (if only that was true). I found a few patches of these on bark of Juglans regia.

Perhaps Catinaria atropurpurea? Lecania naegelii maybe an option? Any ideas/suggestions?

Apothecium sections colorless, except the brown paraphyses tips.
No chem.reactions or UV.
Spores colorless, 1- and 3-septate, about 5um wide and 18um long, some slightly bent.



Thanks,

Dragan