| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Holzapfeliella floricola | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Holospora | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Holospora undulata | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Holospora obtusa | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Holospora elegans | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Holospora caryophila | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Hollandina | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Hollandina pterotermitidis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Hoeflea suaedae | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Herpetosiphon persicus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Herpetosiphon nigricans | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Herpetosiphon llansteffanense | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Herpetosiphon cohaerens | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Herbivorax | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Herbivorax saccincola | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Herbidospora osyris | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Herbaspirillum soli | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Herbaspirillum putei | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Herbaspirillum psychrotolerans | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Herbaspirillum massiliense | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Herbaspirillum denitrificans | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Herbaspirillum canariense | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Herbaspirillum camelliae | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Herbaspirillum aurantiacum | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Hephaestia mangrovi | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Hemophilus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Hemophilus pleuropneumoniae | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Hemophilus piscium | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Hemophilus influenzae | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Hemophilus aegyptius | Unknown | Valid (ICNP) | Excubia bot over 1 year ago |