| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Brevibacillus | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Breoghania corrubedonensis T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Breoghania | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Breoghaniaceae | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Brenneria salicis T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Brenneria rubrifaciens | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Brenneria roseae subsp. roseae | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Brenneria roseae | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Brenneria roseae subsp. americana | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Brenneria populi subsp. populi | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Brenneria populi | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Brenneria populi subsp. brevivirga | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Brenneria nigrifluens | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Brenneria goodwinii | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Brenneria corticis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Brenneria alni | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Brenneria | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Bremerella volcania | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Bremerella cremea T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Bremerella | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Brassicibacter thermophilus | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Brassicibacter mesophilus T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Brassicibacter | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Branchiibius hedensis T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Branchiibius cervicis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Branchiibius | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Bradyrhizobium yuanmingense | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Bradyrhizobium viridifuturi | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Bradyrhizobium vignae | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Bradyrhizobium tropiciagri | Unknown | Valid (ICNP) | Excubia bot over 4 years ago |