coastal lichen for id please

[Naturenutz]

another photo,not sure if its any better jenny

[JennyS]

Thanks Vic, was hoping it might have shown clear isidia in the centre but I'm still not 100% sure - I'll stick with maybe rather than definite Xanthoria calcicola!

[AlanS]

Originally Posted by JennyS

Thanks Vic, was hoping it might have shown clear isidia in the centre but I'm still not 100% sure - I'll stick with maybe rather than definite Xanthoria calcicola!

I'll stick my neck out and state it is definitely Xanthoria calcicola.

It is not an especially coastal lichen of course, more usually a species of concrete, but it is not forbidden to grow on coastal rocks too.

I came across it last week on a wooden fence (also in a slightly immature state with isidia not yet developed) (the lichen, not the fence). An unexpected habitat, but the fence was approx. 10 metres from the southbound carriageway of the A1 and clearly receiving a lot of mineral deposition.

Alan

[Naturenutz]

thanks jenny and alan,i will get an updated photo as the spot is not far from me.
the lichen were on very large boulders placed at the high tide mark,and would regularly get sea spray if not covered completely on accasion.

[Naturenutz]

went back and took 2 more photo,s today.it was not the actual lichen but was from the same rocks which are covered in them as in the photo.I tried to capture the centre area.