| czech republic | | ptilium crista-castrensis | species | 1 | 0 |
| japan | nagano prefecture | ptilium crista-castrensis | species | 1 | 0 |
| netherlands | | ptilium crista-castrensis | species | 2 | 0 |
| united states | alaska | ptilium crista-castrensis | species | 2 | 0 |
| united states | north carolina | ptilium crista-castrensis | species | 1 | 0 |