| Parent | Category | Figures | |
|---|---|---|---|
| 1 | Spigelia | marilandica | 213 |
| 2 | Spigelia | anthelmia | 27 |
| 3 | Spigelia | scabrella | 10 |
| 4 | Spigelia | texana | 9 |
| 5 | Spigelia | gentianoides | 8 |
| 6 | Spigelia | scabra | 4 |
| 7 | Spigelia | loganioides | 4 |
| 8 | Spigelia | andina | 3 |
| 9 | Spigelia | longiflora | 2 |
| 10 | Spigelia | splendens | 2 |
| 11 | Spigelia | beyrichiana | 1 |
| 12 | Spigelia | genuflexa | 1 |
| 13 | Spigelia | hamelioides | 1 |
| 14 | Spigelia | hedyotidea | 1 |
| 15 | Spigelia | pulchella | 1 |
| 16 | Spigelia | alabamensis | 1 |