Herpothallon corallinum is a little-known species of corticolous (bark-dwelling), crustose lichen in the family Arthoniaceae.

[1] Found in the Democratic Republic of the Congo, it was formally described as new to science in 2009 by the lichenologist Göran Thor.

It contains confluentic acid as a major lichen product and various others as minor products and trace metabolites.

The species is only known from two old collections, including the type collection, made in 1898, both in a lowland rainforest on the western shore of Lake Tanganyika.

This Arthoniomycetes-related article is a stub.