| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Mesorhizobium norvegicum | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Mesorhizobium newzealandense | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Mesorhizobium muleiense | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Mesorhizobium metallidurans | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Mesorhizobium mediterraneum | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Mesorhizobium loti T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Mesorhizobium kowhaii | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Mesorhizobium jarvisii | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Mesorhizobium huakuii | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Mesorhizobium helmanticense | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Mesorhizobium hawassense | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Mesorhizobium hankyongi | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Mesorhizobium gobiense | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Mesorhizobium erdmanii | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Mesorhizobium ephedrae | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Mesorhizobium delmotii | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Mesorhizobium composti | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Mesorhizobium ciceri | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Mesorhizobium chacoense | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Mesorhizobium carmichaelinearum | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Mesorhizobium carbonis | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Mesorhizobium caraganae | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Mesorhizobium cantuariense | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Mesorhizobium camelthorni | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Mesorhizobium calcicola | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Mesorhizobium australicum | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Mesorhizobium atlanticum | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Mesorhizobium amorphae | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Mesorhizobium alhagi | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Mesorhizobium albiziae | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago |