| 1 | Leaflets with a distinct intramarginal vein. Ovary 5-(or 4-)celled; style 5 (or 4), free. Drupe more than 1½ by 1¼ cm in dry state, straight, 5-(or 4-)celled. |
| 1' | Leaflets without an intramarginal vein. Ovary 1-celled; style 1. Drupe small, c. 1 by ½ cm in dry state, slightly curved, 1-celled |
| 2 | Leaves and inflorescences glabrous. |
| 2' | Leaves and inflorescences puberulous. |
| 3 | Flowers distinctly pedicelled (usually 1¼-4 mm). Flanges of the hard part of the endocarp often indirectly connected with the peripheral layer of meshes by numerous spinose and fibrous processes |
| 3' | Flowers sessile or subsessile. Flanges of the hard part of the endocarp partly or wholly and directly connected with the peripheral layer of meshes |
| 4 | Inflorescences (accompanied by mature leaves) terminal, sometimes also in the apical leaf axils, up to 50 cm long, many-flowered. Flowers white. Drupe orange when ripe |
| 4' | Inflorescences (appearing before the leaves) axillary, up to 4 cm long, few-flowered. Flowers reddish or purplish. Drupe usually purple when ripe |
