Phylum Ascomycota Caval.-Sm. (1998) - sac fungi Subphylum Pezizomycotina O.E. Erikss. & Winka (1997) Class Geoglossomycetes Zheng Wang, C.L. Schoch & Spatafora (2009) [monotypic] Order Geoglossales Zheng Wang, C.L. Schoch & Spatafora (2009) Family Geoglossaceae Corda (1838) Genus Leucoglossum S.Imai (1942)