Northumberland Lichen

[black]

Help required with these Lichen I photographed last week.
Ok the first isn't from Northumberland but St Abbs head just over the border, on a sandstone rock close to the beach



The second was on a rock on the rocky shoreline at Craster



The third was on rocks at the base of Bamburgh castle

[AlanS]

Hi Black,

No. 1 looks like Evernia prunastri - often common on trees but only rarely on rocks. In naming it as this, I am assuming it is much paler underneath, which seems to be the case from your photograph. Otherwise it would be a Ramalina, but that would take us to a group of rarer species, none of which it seems to fit.

No. 2 is Tephromela atra.

No. 3 is Parmelia saxatilis.

Alan

[black]

Thanks again Alan, I photographed some other specimens of what maybe Evernia prunastri on rocks on a Lindisfarne beach overlooking the castle which also had Tephromela atra and a yellow lichen growing on them. I'll see if I can upload the photos tomorrow.

[AlanS]

Originally Posted by black

Thanks again Alan, I photographed some other specimens of what maybe Evernia prunastri on rocks on a Lindisfarne beach overlooking the castle which also had Tephromela atra and a yellow lichen growing on them. I'll see if I can upload the photos tomorrow.

Hi Black, it will be a while before I am able to reply.

Note that a strap-like lichen on coastal rocks will nearly always be a Ramalina. The two common species in this habitat are R. siliquosa and R. subfarinacea. There ought to be photographs of both of these on my lichen site but I see I forgot to load them at the last update - will do so sometime later this month.

Alan