Hormosphaeria is a single-species fungal genus in the order Arthoniales.[1] The genus has not been placed into a family.[2] It contains the species Hormosphaeria tessellata
^Lumbsch TH, Huhndorf SM. (December 2007). "Outline of Ascomycota – 2007". Myconet. 13. Chicago, USA: The Field Museum, Department of Botany: 1–58. Archived from the original on 2009-03-18.