Phylum Ascomycota Caval.-Sm. (1998) - sac fungi Subphylum Pezizomycotina O.E. Erikss. & Winka (1997) Class Sordariomycetes O.E. Erikss. & Winka (1997) Subclass Xylariomycetidae O.E. Erikss. & Winka (1997) Order Xylariales Nannf. (1932) Family Hypoxylaceae DC. (1805) Genus Rhopalostroma D.Hawksw. (1977)