Phylum Ascomycota Caval.-Sm. (1998) - sac fungi Subphylum Pezizomycotina O.E. Erikss. & Winka (1997) Class Leotiomycetes O.E. Erikss. & Winka (1997) Order Leotiales Carp. (1988) [monotypic] Family Leotiaceae Corda (1842) Genus Halenospora E.B.G.Jones (2009)