| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Hoministercoradaptatus | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Hoministercoradaptatus ammoniilyticus T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Hominimerdicola | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Hominimerdicola aceti T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Holzapfeliella | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Holzapfeliella floricola T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Holospora | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Holospora undulata T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Holospora obtusa | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Holospora elegans | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Holospora caryophila | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Hollandina | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Hollandina pterotermitidis T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Hoeflea suaedae | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Herpetosiphon persicus | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Herpetosiphon nigricans | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Herpetosiphon llansteffanense | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Herpetosiphon cohaerens | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Herbivorax | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Herbivorax saccincola T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Herbidospora osyris | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Herbaspirillum soli | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Herbaspirillum putei | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Herbaspirillum psychrotolerans | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Herbaspirillum massiliense | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Herbaspirillum denitrificans | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Herbaspirillum canariense | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Herbaspirillum camelliae | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Herbaspirillum aurantiacum | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Hephaestia mangrovi | Unknown | Valid (ICNP) | Excubia bot over 3 years ago |