On a mature Rowan surrounded by Pannaria rubiginosa
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If you can it might be an idea to go back in a while and see if its developed any apothecia!
I certainly will kept an eye on it, we walk our dog there every week or so.
Do you think it might be Degelia cyanoloma?
Wildlife of Assynt
I am not sure whether this helps it was on the same group of trees.
The thallus lobes look very shell like, are up turned at the end and have transverse ridges
I thought I can see some isidia? on their surface and again no apothecia so thought it not conclusive for Degelia cyanoloma, but still looks like a Degelia sp.?
Its certainly a Degelia but my internet connection is really bad at the moment so I can't get your new photo to load.
This cannot be D. plumbea, and looks very much like typical D. cyanoloma (the only option is a particularly large D. atlantica but true isidia seems to be lacking) which quite often develope huge thallii without apothecia
It's the lack of any apothecia that was making me unsure, also I had been specifically looking for D. cyanoloma and was worried I may be seeing what I wanted to see.
Did you see my spot http://www.ispot.org.uk/node/21525, any views on this?
I have been back again to check and no apothecia have grown.
But even without them, given Hans's comments I am more confident that it is Degelia cyanoloma.
I have been back and still no sign of apothecia.
Yesterday I was walking by the River Inver and came across a number of mature trees covered in Degelia sp. This is 20 miles from the original site but again by water in an old mature woodland.
I have added a fourth photo from there of one that I am thinking is a D. cyanoloma even though again it does not have apothecia.
Lat/Lng: 58.2, -5.1
OS grid ref: NC2234