Thanks Alan, I really appreciate the input.
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Originally Posted by AlanS  2. Yes, Ochrolechia parella. Presumably photographed in shade, hence the blue colour cast. |
It was growing in full sun, but I think it was probably in my shadow
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Originally Posted by AlanS 5. I don't think this is a lichen. Almost certainly it is the green (!) alga, Trentepohlia, with the bright colour and cushion-like growth suggesting T. aurea. |
I'm getting used to seeing
Trentepohlia on tree trunks but had now idea it grew on rocks too.
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Originally Posted by AlanS 8. Yes, C. portentosa. (There is a closely related, extremely rare and critically endangered species on the serpentine in W. Cornwall but, sadly, your photograph shows the trichotomously branched tips of the common species.) |
Just out of interest which species is the rare one - I took several other pictures of what I think are
C. portentosa but would be interesting to check them.
Shall be posting a few more later on...