fungus and algae form this lichen.The algae is known as Trebouxia erici.
Called British soldier because it is the samw red as British unforms used to be!
Caution: Do NOT use iSpot to identify fungi to eat!
Some fungi are very poisonous so a mistaken ID could have serious consequences.
No interactions present.
Lichens can be quite tricky also known as Matchstick Lichens
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The precise location is from White Coppice car park. Go up by the quarries onto Black coppice. You turn R (heading S)along the edge,and go through the broken wall and you will find it 10-30 yards along on rocks along the path...
I'll take a detour to admire it next time I'm lichenising near there.
Lat/Lng: 53.662, -2.576
OS grid ref: SD620185