| 1 | Leaf blade margins with black glandular dots, no teeth. — Thailand, West Malesia, Sulawesi |
| 1' | Leaf blade margins with black drying glandular teeth (check several leaves, teeth caducous, leaving glandular dot-like scars). — New Guinea |
| 2 | Caruncle with up to 5 mm long, wavy papillae. Ovary 2-locular. Fruits 9-12 by 8-9 mm. Leaves up to 8 cm long. Staminate flowers with 4 sepals and 4 stamens. — Sulawesi |
| 2' | Caruncle with up to 1.5 mm long, straight papillae. Ovary 2-4-locular. Fruits 10-22 by 9-16 mm. Leaves up to 16 cm long. Staminate flowers with (3 or) 4 or 5 sepals and (4 or) 5 stamens. — Thailand, West Malesia |
