| Kingdom: Fungi |
| Phylum: Ascomycota |
| Subphylum: Pezizomycotina |
| Class: Sordariomycetes |
| Subclass: Sordariomycetidae |
| Order: Diaporthales |
| Family: Gnomoniaceae |
| Genus: Stegophora |
| Subject: Stegophora ulmea (Fr.) Syd. & P. Syd. |
| Kingdom: Plantae |
| Phylum: Magnoliophyta |
| Class: Magnoliopsida |
| Subclass: Hamamelidae |
| Order: Urticales |
| Family: Ulmaceae |
| Genus: Ulmus |
| Subject: Ulmus spp. L. |