| Kingdom: Fungi | 
| Phylum: Ascomycota | 
| Subphylum: Pezizomycotina | 
| Class: Sordariomycetes | 
| Subclass: Hypocreomycetidae | 
| Order: Hypocreales | 
| Family: Incertae sedis | 
| Genus: Geosmithia | 
| Subject: Geosmithia morbida (Proposed name) | 
| Kingdom: Plantae | 
| Phylum: Magnoliophyta | 
| Class: Magnoliopsida | 
| Subclass: Hamamelidae | 
| Order: Juglandales | 
| Family: Juglandaceae | 
| Genus: Juglans | 
| Subject: Juglans major (Torr.) A. Heller |