Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Pezizomycetes O.E. Erikss. & Winka (1997) [monotypic]
       Order Pezizales J.Schröt. (1894)
         Family Pyronemataceae Corda (1842)
           Genus Melastiza Boud. (1885)