Cercidospora soror

Species of fungus

Cercidospora soror is a species of lichenicolous fungus in the genus Cercidospora but it has not been assigned to a family. It was discovered growing on Arthrorhaphis citrinella in Austria but has since then also been reported from Greenland, where it infects Arthrorhaphis alpina and Arthrorhaphis citrinella.

This keyword could refer to multiple things. Here are some suggestions: