Annln K. K. naturh. Hofmus. Wien 5: 43 (1890).
Basionym: Lichen ulmi Sw., Nova Acta Acad. Upsal. 4: 247 (1784).
Distribution Database: Discover Life
Picture Database: Tropical Lichens
Molecular Database: Genbank
Synonym Database: Index Fungorum
Synonym Database: Mycobank