It is commonly refered that Lecanographa grumulosa can parasite Dirina massiliensis f. sorediata (see e.g. http://www.lichensmaritimes.org/...). The existence of so many specimens of Dirina massiliensis f. sorediata, covering vast zones of the wall of church refered observation 329486 makes plausible the existence of Lecanographa grumulosa_, species that I have found in a neighbour location before (_observation 275927 & observation 318173). The specimens from here are entirely similar to those collected before. Unfortunately my microscope is down and I cannot confirm the micro caracters.