| Part 4 Budding and/OR Appendaged Bacteria |
| Genus : Hyphomicobium |
| Genus : Hyphomonas |
| Genus : Pedomicrobium |
| Genus : Caulobacter |
| Genus : Asticcacaulis |
| Genus : Ancalomicrobium |
| Genus : Prosthecomicrobium |
| Genus : Thiodendrof |
| Genus : Pasteuria |
| Genus : Blastobacter |
| Genus : Seliberia |
| Genus : Gallionella |
| Genus : Nevskia |
| Genus : Planctomyces |
| Genus : Metallogenium |
| Genus : Caulococcus |
| Genus : Kusnezonia |
