the root (no rank)
Eukaryota (domain)
Fungi (kingdom)
Ascomycota (phylum)
Pezizomycotina (subphylum)
Sordariomycetes (class)
Ophiostomatales (order)
Ophiostomataceae (family)
Ophiostoma (genus)
Ophiostoma ulmi (species)
[hide inferior taxa]