| 1 | Leaves oblong-lanceolate, small, 5-13.5 by 1.5-4.5 cm; nerves below not or hardly raised, i.e. usually they cannot be felt with the finger. Fruits short-ellipsoid to globose. — Sumatra, Peninsular Malaysia, Borneo |
| 1' | Leaves small or large, 6-27 by 2-8.5 cm; nerves below usually clearly visible and contrasting, usually distinctly raised and to be felt with the finger. Fruits various 2 2a. Leaves coriaceous, elliptic(-oblong), 6-15(-17) by 3-5.5(-6) cm, usually with conspicuously revolute edge. [Fruits globose to short-ellipsoid.] — Sumatra, Peninsular Malaysia, Borneo |
| 1'' | Leaves membranous, chartaceous, or sometimes coriaceous, (elliptic-oblong to) lanceolate, 8-27 by 2-8.5 cm, margin flat, rarely revolute |
| 2 | Fruits globose to short-ellipsoid, fruiting pedicel 8-15 mm long. — Philippines. |
| 2' | Fruits ellipsoid to oblong, rarely subglobose (Moluccas), fruiting pedicel 4-8 mm long. — W Malesia (nerves on lower surface of blade usually pale yellowish), E Malesia (nerves usually reddish brown and contrasting), rare in the Philippines |
