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.
so this is not a fungi or lichen??
Neither - it is an alga, several species of which are free-living on rock, masonry and trees. Interestingly, some of the genus are the fungal partner (with a fungus) in some lichens. All lichens are a symbiosis between a fungus and either an alga or a bacterium.
recording wildlife with The Recorder's Year on www.hbrg.org.uk/TRY.html.
Lat/Lng: 50.156, -5.0711
OS grid ref: SW807329