| Genus Name | Genus | Grex Name | Year | Author | |
|---|---|---|---|---|---|
| Add+ | Paphiopedilum | Paph | x littleanum | 1896 | (auct.) Rolfe |
| Add+ | Paphiopedilum | Paph | littleanum | 1896 | |
| Add+ | Cordula | Cordula | littleana | ||
| Add+ | Cordula | Cordula | x littleana | 1912 | (auct.) Rolfe |
| Add+ | Cypripedium | Cyp | x littleanum | 1895 | auct. |