| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Kibdelosporangium aridum subsp. aridum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Kibdelosporangium | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Ketogulonicigenium vulgare T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Ketogulonicigenium robustum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Ketogulonicigenium | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Ketobacter nezhaii | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Ketobacter alkanivorans T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Ketobacter | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Kerstersia similis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Kerstersia gyiorum T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Kerstersia | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Keratinibaculum paraultunense T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Keratinibaculum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Kangsaoukella pontilimi T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Kangsaoukella | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Kangiella taiwanensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Kangiella spongicola | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Kangiella sediminilitoris | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Kangiella profundi | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Kangiella marina | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Kangiella koreensis T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Kangiella japonica | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Kangiella geojedonensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Kangiella aquimarina | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Kangiella | ||||
| Kandleria vitulina T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Kandleria | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Kandeliimicrobium roseum T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Kandeliimicrobium | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Kallotenue papyrolyticum T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago |