R. macrospora R. maculata R. maculatoides R. melanobapha R. subtilissima R. transversoundulata R. tremens Racoplaca is a genus of lichen-forming fungi in the family Strigulaceae.

A 2020 multilocus phylogenetic analysis by Shu-Hua Jiang and colleagues demonstrated that foliicolous (leaf-dwelling) species previously placed in Strigula actually represent six distinct evolutionary lineages.

The lichen forms a thin, distinctive crust beneath the leaf cuticle, characterised by repeated forking (dichotomous) branches that create a network-like pattern radiating outward.

These are typically covered by a thin layer of the lichen's body (thallus) except at the opening (ostiole), giving them a partially black appearance.

[3] The asexual reproductive structures include small black, wart-like to conical chambers (pycnidia) that are either sunken or surface-level.