Astrothelium bireagens

Astrothelium bireagens
Scientific classification
Kingdom: Fungi
Division: Ascomycota
Class: Dothideomycetes
Order: Trypetheliales
Family: Trypetheliaceae
Genus: Astrothelium
Species:
A. bireagens
Binomial name
Astrothelium bireagens
Lücking, N.Marín & Álvaro (2023)
Type locality: La Ceiba indigenous community, Colombia

Astrothelium bireagens is a species of crustose lichen-forming fungus in the family Trypetheliaceae. It is an olive-green to olive-yellow, bark-dwelling lichen with prominent, brownish black fruiting bodies that may fuse into grouped structures. The species was described in 2023 from specimens collected in white-sand savanna in Guainía, Colombia.