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.
For most of us, the encrusting coralline species are difficult to distinguish and few surveys record to species level. They are red algae and often called Lithothamnium - "rock thallus", though detailed study has produced several genera, such as Lithophyllum and Phymatolithon, and many species.
More Information from http://www.marlin.ac.uk/
p.s "seaweeds" generally refers to marine algae, especially the macroscopic ones.
Think we are dealing with these in 'plants' rather than 'fungi and lichens' so wonder if you could change the group incase people who may be interested only look at their specific group.
Lat/Lng: 50.734472, -1.725197
OS grid ref: SZ194927