Collection location: Óbidos, Portugal [Click for map]
Same place than Observation 212323, also growing on the bricks of the fence surrounding a monument there. As in that case, the tiny urceolate apothecia and the whitish thallus make the ID plausible.
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sum(score * weight) /
(total weight + 1)
There are so many apparently intermediate specimens where some or most of the apothecia are constricted to tiny ostiole-like openings, but where at least some of the apothecia eventually dilate and look more typical of D. scruposus.
Do you find that there is an obvious separation between the two taxa in your area?