Crustose lichen with main thallus segmented, sandy-yellow colour with a few black fruiting bodies with lumpy tops.
Have now added another photograph with a closer view
Caution: Do NOT use iSpot to identify fungi to eat!
Some fungi are very poisonous so a mistaken ID could have serious consequences.
No interactions present.
Might be Porpidia melanodes, same as your previous (or next) observation, but I am not giving a formal ID. Same comments, we need a crisp, really close photograph that might reveal small soralia. Can't tell what the black things are, probably not fruiting bodies of the lichen itself.
Thank you for your comments. I have added another photo with a closer view. I think there are signs of the soralia,
What do you think now?
Lat/Lng: 57.6651, -5.3426
OS grid ref: NH007688
Near the top of Slioch, nr Kinlochewe, Highlands