Candelariella coralliza ?

Candelariella coralliza ?

Observation - Candelariella coralliza ? - UK and Ireland. Description: On a quartz-based sandstone picnic table (a potential bird perch?). No K reaction. I think C. vitellina is the only other contender.

On a quartz-based sandstone picnic table (a potential bird perch?). No K reaction.

I think C. vitellina is the only other contender.