| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Rhizobium larrymoorei | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobium japonicum | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobium huautlense | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobium huakuii | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobium herbae | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobium giardinii | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobium galegae | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobium fredii | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobium flavum | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobium endolithicum | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobium cremeum | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobium ciceri | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobium borbori | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobium alkalisoli | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobacter daucus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rheinheimera pleomorphica | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rheinheimera maricola | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rheinheimera lutimaris | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhabdothermincola salaria | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Reichenbachia | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Reichenbachia agariperforans T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Raoultibacter | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Raoultibacter timonensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Raoultibacter massiliensis T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Ramlibacter terrae | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Ramlibacter pinisoli | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Ramlibacter montanisoli | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Ramlibacter agri | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Ralstonia wenshanensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Ralstonia taiwanensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago |