On shaded limestone. Spores 8 per ascus, ellipsoid, muriform, 12.5-20.0 x 7.5-10.0μm.
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.
certainly looks like it, but cannot add agreement without inforamtion on spore size etc.
I will do a proper job and update the observation (though I won't be able to add a microscope photo: the mirror in the camera I was using fell out yesterday - a known fault with the Canon 5D).
Edit: spores checked and description updated.
Lat/Lng: 54.1007863, -2.1653027
OS grid ref: SD892672