Devon lichens 5

Devon lichens 5

Observation - Devon lichens 5 - UK and Ireland. Description: Growing under overhanging grass amongst moss where there is little topsoil and mostly shillet (decayed slate). Although not very clear, there are some very small, pinkish brown podetia growing from the rim of some of the larger podetia. I think this is

Growing under overhanging grass amongst moss where there is little topsoil and mostly shillet (decayed slate). Although not very clear, there are some very small, pinkish brown podetia growing from the rim of some of the larger podetia.
I think this is a Cladonia, but I don't know which.