R. candidum R. epiphyllum R. flavescens R. lagarostrobi R. leprocauloides R. neglectum R. spongoideum Roccellinastrum is a genus of lichen-forming fungi in the family Pilocarpaceae.

The genus was circumscribed in 1968 by German lichenologist Gerhard Follman, with Roccellinastrum spongoideum assigned as the type species.

This byssoid lichen (appearing wispy, like teased wool) was found growing on cactus spines in the fog oases of western Chile.

[3] Species in genus Roccellinastrum are characterized by apothecia of diverse shape that lack a proper margin, and a developmental morphology corresponding to that of the order Lecanorales.

The main secondary chemical produced by Roccellinastrum lichens is protocetraric acid.