The Ostropomycetidae are a subclass of mostly lichen-forming fungi in the class Lecanoromycetes. The subclass was circumscribed in 2004 by Catherine Reeb, François M. Lutzoni, and Claude Roux.[1] It contains ten orders and 36 families.[2]

The lichen, Graphis scripta, Jones County, Georgia, USA
The lichen Graphis scripta, Jones County, Georgia, USA
Scientific classification e
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Subclass: Ostropomycetidae
Reeb, Lutzoni, & Cl.Roux (2004)

Arctomiaceae is the only family in the Ostropomycetidae that associates with cyanobacteria of the order Nostocales as its main photobiont partner.[3]

Taxa of uncertain classificationEdit

The following taxa are of uncertain classification (incertae sedis) in the Ostropomycetidae:[2]

Family incertae sedis:

Genera incertae sedis:


  1. ^ Reeb, V.; Lutzoni, F.; Roux, C. (2004). "Multilocus phylogenetic circumscription of the lichen-forming fungi family Acarosporaceae and its position within the Ascomycota". Molecular Phylogenetics and Evolution. 32 (3): 1036–1060. doi:10.1016/j.ympev.2004.04.012. PMID 15288074.
  2. ^ a b Wijayawardene, Nalin; Hyde, Kevin; Al-Ani, Laith Khalil Tawfeeq; Somayeh, Dolatabadi; Stadler, Marc; Haelewaters, Danny; et al. (2020). "Outline of Fungi and fungus-like taxa". Mycosphere. 11: 1060–1456. doi:10.5943/mycosphere/11/1/8.
  3. ^ Miadlikowska, Jolanta; Kauff, Frank; Högnabba, Filip; Oliver, Jeffrey C.; Molnár, Katalin; Fraker, Emily; et al. (2014). "A multigene phylogenetic synthesis for the class Lecanoromycetes (Ascomycota): 1307 fungi representing 1139 infrageneric taxa, 317 genera and 66 families". Molecular Phylogenetics and Evolution. 79: 132–168. doi:10.1016/j.ympev.2014.04.003. PMC 4185256. PMID 24747130.