| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Brenneria | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Bremerella volcania | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Bremerella cremea T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Bremerella | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Brassicibacter thermophilus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Brassicibacter mesophilus T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Brassicibacter | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Branchiibius hedensis T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Branchiibius cervicis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Branchiibius | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Bradyrhizobium yuanmingense | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Bradyrhizobium viridifuturi | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Bradyrhizobium vignae | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Bradyrhizobium tropiciagri | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Bradyrhizobium symbiodeficiens | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Bradyrhizobium subterraneum | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Bradyrhizobium stylosanthis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Bradyrhizobium shewense | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Bradyrhizobium ripae | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Bradyrhizobium rifense | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Bradyrhizobium retamae | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Bradyrhizobium paxllaeri | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Bradyrhizobium pachyrhizi | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Bradyrhizobium ottawaense | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Bradyrhizobium oligotrophicum | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Bradyrhizobium nitroreducens | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Bradyrhizobium niftali | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Bradyrhizobium neotropicale | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Bradyrhizobium nanningense | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Bradyrhizobium namibiense | Unknown | Valid (ICNP) | Excubia bot about 3 years ago |