Kingdom: Fungi
Division: Ascomycota
Subdivision: Ascomycotina
Class: Ascomycetes
Order: Pyrenulales
Family: Insertae sedis
Genus: Celothelium
Species name: Celothelium ischnobelum (Nyl.) M. B. Aguirre, 1991
Azorean endemic: No
Coordinator: Rosalina Gabriel