Caliciaceae
Diplotomma murorum # Chemical results negative Lichenicolous on Caloplaca teicholyta. BLS conservation evaluation: NE NR Diplotomma murorum and D. vezdanum are possibly both lichenicolous forms of D. alboatrum. The spores are initially septate, usually becoming submuriform, 20-22 × 7.5-9 µm. Microscope photographs below. Similar: Diplotomma vezdanum occurs on Caloplaca verruculifera |
Microscope photographs
Diplotomma murorum
Kimmeridge and Lytchett Minster, Dorset. March 2014, December 2016