| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Brenneria roseae | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Brenneria roseae subsp. americana | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Brenneria populi subsp. populi | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Brenneria populi | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Brenneria populi subsp. brevivirga | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Brenneria nigrifluens | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Brenneria goodwinii | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Brenneria corticis | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Brenneria alni | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Brenneria | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Bremerella volcania | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Bremerella cremea T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Bremerella | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Brassicibacter thermophilus | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Brassicibacter mesophilus T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Brassicibacter | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Branchiibius hedensis T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Branchiibius cervicis | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Branchiibius | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Bradyrhizobium yuanmingense | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Bradyrhizobium viridifuturi | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Bradyrhizobium vignae | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Bradyrhizobium tropiciagri | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Bradyrhizobium symbiodeficiens | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Bradyrhizobium subterraneum | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Bradyrhizobium stylosanthis | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Bradyrhizobium shewense | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Bradyrhizobium ripae | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Bradyrhizobium rifense | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Bradyrhizobium retamae | Unknown | Valid (ICNP) | Excubia bot about 5 years ago |