| austria | | ophiostoma novo-ulmi | species | 6 | 0 |
| belgium | | ophiostoma novo-ulmi | species | 1 | 0 |
| canada | | ophiostoma novo-ulmi | species | 20 | 0 |
| canada | | ophiostoma novo-ulmi subsp. americana | subspecies | 3 | 0 |
| canada | ontario | ophiostoma novo-ulmi | species | 0 | 1 |
| canada | quebec | ophiostoma novo-ulmi | species | 0 | 1 |
| croatia | | ophiostoma novo-ulmi subsp. novo-ulmi | subspecies | 1 | 0 |
| czech republic | | ophiostoma novo-ulmi | species | 2 | 0 |
| czech republic | | ophiostoma novo-ulmi subsp. americana | subspecies | 1 | 0 |
| czech republic | | ophiostoma novo-ulmi subsp. novo-ulmi | subspecies | 4 | 0 |
| estonia | | ophiostoma novo-ulmi | species | 1 | 0 |
| estonia | | ophiostoma novo-ulmi subsp. americana | subspecies | 6 | 0 |
| estonia | | ophiostoma novo-ulmi subsp. novo-ulmi | subspecies | 61 | 0 |
| iran | | ophiostoma novo-ulmi subsp. novo-ulmi | subspecies | 3 | 0 |
| japan | hokkaido prefecture | ophiostoma novo-ulmi | species | 9 | 0 |
| lebanon | | ophiostoma novo-ulmi | species | 8 | 0 |
| lithuania | | ophiostoma novo-ulmi | species | 1 | 0 |
| new zealand | | ophiostoma novo-ulmi | species | 5 | 0 |
| norway | | ophiostoma novo-ulmi | species | 8 | 0 |
| poland | | ophiostoma novo-ulmi | species | 9 | 0 |
| portugal | | ophiostoma novo-ulmi | species | 1 | 0 |
| portugal | | ophiostoma novo-ulmi subsp. americana | subspecies | 1 | 0 |
| russia | | ophiostoma novo-ulmi | species | 4 | 0 |
| russia | | ophiostoma novo-ulmi subsp. americana | subspecies | 8 | 0 |
| russia | | ophiostoma novo-ulmi subsp. novo-ulmi | subspecies | 8 | 0 |
| slovakia | | ophiostoma novo-ulmi subsp. novo-ulmi | subspecies | 3 | 0 |
| slovakia | | ophiostoma novo-ulmi subsp. novo-ulmi h327 | no rank | 10 | 0 |
| switzerland | geneva region | ophiostoma novo-ulmi | species | 2 | 0 |
| united kingdom | | ophiostoma novo-ulmi subsp. americana | subspecies | 3 | 0 |
| united states | | ophiostoma novo-ulmi | species | 17 | 0 |
| united states | | ophiostoma novo-ulmi subsp. americana | subspecies | 9 | 0 |
| united states | colorado | ophiostoma novo-ulmi | species | 3 | 0 |
| united states | iowa | ophiostoma novo-ulmi subsp. americana | subspecies | 1 | 0 |
| united states | wisconsin | ophiostoma novo-ulmi subsp. americana | subspecies | 1 | 0 |