| 1 | Mature fruits hairy |
| 1' | Mature fruits glabrous |
| 2 | Fruits 2-3 by 1.5-2 cm. Philippines |
| 2' | Fruits 4.5 by 2.25 cm or more. Not Philippines |
| 3 | Fruits up to 3 cm wide, the wall c. 1 mm thick. West Malesia |
| 3' | Fruits c. 4 cm wide, the wall c. 10 mm thick. New Guinea |
| 4 | Leaflets tapering into an acute acumen |
| 4' | Leaflets not acuminate |
| 5 | Leaves 7-jugate; petiolules 3-5 mm long. Borneo |
| 5' | Leaves 1-4-jugate; petiolules 7-10 mm long. Philippines |
| 6 | Leaves 3-5-jugate; petiole terete. Borneo, Philippines |
| 6' | Leaves 1- or 2-jugate; petiole flat above. Celebes |
| 7 | Petiolules 3-9 mm long; leaflets 5-10 by 1.75-4 cm. Borneo. |
| 7' | Petiolules 12-15 mm long; leaflets 11-15 by 5-6 mm. Philippines |
