Phylum Ascomycota Caval.-Sm. (1998) - sac fungi Subphylum Pezizomycotina O.E. Erikss. & Winka (1997) Class Lecanoromycetes O.E. Erikss. & Winka (1997) Subclass Ostropomycetidae V. Reeb, Lutzoni & Cl.Roux (2004) Order Agyriales Clem. & Shear (1931) see Order Pertusariales M. Choisy ex D.Hawksw. & O.E. Erikss. (1986) Family Agyriaceae Corda (1838) see Family Pertusariaceae Körb. ex Körb. (1855) Genus Xylographa (Fr.) Fr. (1836)