| 1 | Indumentum present, at least on the calyx. Styles 5(-6). Ovary 5(-6)-celled, locules all distinct in the fruit. Drupe with 2—4(—5) developed seeds |
| 1' | All parts glabrous. Styles 3-4(-5). Ovary 3(-4)-celled, only one, rarely 2 locules distinct in the fruit. Drupe usually with one developed seed. |
| 2 | Resin absent. Leaves spirally arranged. Flowers in rather lax racemes or panicles |
| 2' | Buds and stipules often covered by resin. Leaves distichously arranged. Flowers in axillary fascicles, subtended by often densely packed, imbricate bracteoles |
