| Name | Gladiolus praelongitubus G. J. Lewis |
| Authorship | G. J. Lewis |
| Rank | Species |
| Placed in | Gladiolus Linnaeus |
| Citation | 1941 J. S. African Bot. vii. 27 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Gladiolus praelongitubus G. J. Lewis |
| Identification made in | [no date] (3) |