Carbonea aggregantula is a species of lichenicolous (lichen-dwelling) fungus belonging to the family Lecanoraceae.

[2] It is a lichenicolous fungus, meaning that it grows on other lichens, but it does not cause obvious symptoms of infection, unlike the similar Carbonea austroshetlandica.

[3] Carbonea aggregantula is widely distributed.

Although it has not been reported often, its distribution includes multiple continents.

[3] Carbonea aggregantula has a wide range of host species which are still being discovered.