Brianaria sylvicola is a species of saxicolous lichen in the family Psoraceae.

The species was first named Lecidea sylvicola by Julius von Flotow in 1829.

In 2014, Stefan Ekman and Måns Svensson circumscribed the genus Brianaria to contain four closely related species formerly in the Micarea sylvicola group, and made Brianaria sylvicola the type species.

Occasionally, the lichen is found growing on other substrates, such as wood or rusted iron.

[2] No lichen substances are found in Brianaria sylvicola that are detectable by thin-layer chromatography.