| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Herpetosiphon cohaerens | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Herbivorax | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Herbivorax saccincola T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Herbidospora osyris | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Herbaspirillum soli | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Herbaspirillum putei | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Herbaspirillum psychrotolerans | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Herbaspirillum massiliense | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Herbaspirillum denitrificans | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Herbaspirillum canariense | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Herbaspirillum camelliae | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Herbaspirillum aurantiacum | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Hephaestia mangrovi | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Hemophilus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Hemophilus pleuropneumoniae | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Hemophilus piscium | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Hemophilus influenzae T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Hemophilus aegyptius | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Helmutkoenigia | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Helmutkoenigia isoptericolens T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Heliomarina | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Heliomarina baculiformis T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Heliobacterium undosum | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Heliobacterium modesticaldum | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Heliobacterium mobile | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Heliobacterium gestii | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Helicobacter turcicus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Helicobacter nemestrinae | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Helicobacter kayseriensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Helicobacter japonicum | Unknown | Valid (ICNP) | Excubia bot about 3 years ago |