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Algae on Basalt

by Siobhan Fraser - 18:09 on 22 November 2015

Another image from Staffa.  When I first came across this I couldn’t work out what it was - and to be honest didn't really want to guess too hard.  But I have been reliable informed that it’s algae that grows on basalt.  I like the way the green of the algae is really highlighted by the grey of the basalt columns.  If you look closely at the basalt at the front you will see small dots of other algae.