Orange Crustose found on a well shaded tree in a Reed Bed
No interactions present.
This one is an algae that often gets mistaken for a lichen - a Trentepohlia species.
If you look closely you can see that it is comprised of minute thread-like filaments
Thank you for that pointer, I#ll look more closely at it when I return to that site
there are dozens of Trentepohlia posts, few with definitive or conclusive IDs
One could do worse than browse them all and read the comments. Only after doing this, was I able to offer a short sequence of inadequate pictures in my post here http://www.ispotnature.org/node/633539.
Alan Silverside has produced some welcome 'stuff' here http://www.bioref.lastdragon.org/Chlorophyta/Trentepohlia.html but I think he has recently admitted that it needs a revision.
Lat/Lng: 51.3, -1.3
OS grid ref: SU4966