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CCDB → Angiosperms → Gesneriaceae → Diastema
| Taxon name | Status | Median (n) |
| Diastema rupestre Brandegee | Accepted | 13 |
| Diastema vexans H. E. Moore | Accepted | 13 |
| Diastema quinquevulnerum Planch. & Linden | Unresolved | 13 |
| Diastema maculatum None | Synonym of Diastema maculatum (Poepp.) Benth. ex Walp. | 13 |