A white crustose lichen with a beautiful corona of yellow/orange buds? spores?
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.
The orange lichen is probably Caloplaca flavescens but the white one to the right of the photo is a different species.
Lat/Lng: 51.6, -0.6
OS grid ref: TQ0198