| Parent | Category | Figures | |
|---|---|---|---|
| 1 | Strychnos | spinosa | 25 |
| 2 | Strychnos | madagascariensis | 24 |
| 3 | Strychnos | pungens | 11 |
| 4 | Strychnos | angustiflora | 9 |
| 5 | Strychnos | myrtoides | 6 |
| 6 | Strychnos | usambarensis | 6 |
| 7 | Strychnos | potatorum | 5 |
| 8 | Strychnos | decussata | 4 |
| 9 | Strychnos | cocculoides | 3 |
| 10 | Strychnos | panamensis | 3 |
| 11 | Strychnos | xantha | 3 |
| 12 | Strychnos | nux-vomica | 2 |
| 13 | Strychnos | gerrardii | 2 |
| 14 | Strychnos | diplotricha | 2 |
| 15 | Strychnos | brasiliensis | 2 |
| 16 | Strychnos | toxifera | 2 |
| 17 | Strychnos | peckii | 1 |
| 18 | Strychnos | mitis | 1 |
| 19 | Strychnos | brachistantha | 1 |
| 20 | Strychnos | trinervis | 1 |
| 21 | Strychnos | henningsii | 1 |
| 22 | Strychnos | psilosperma | 1 |