| 1 | Hairs of leaf buds woolly-rusty, 0.2-0.3 mm long. — Bird's Head: Fak-Fak. |
| 1' | Hairs of leaf buds up to 0.1 mm |
| 2 | Petiole 10-15 mm long. [Male buds 3 mm wide.] — Morotai, Obi Is |
| 2' | Petiole (10-) 15-25 mm long, generally longer in proportion to the smaller blade. — West New Guinea |
| 3 | Leaf blades 7-15 cm long. Fruits 1.3-1.8 cm long. Male buds 2-2.5 mm wide |
| 3' | Leaf blades 13-23 cm long. Fruits 2.2-3 cm long. Male buds (3-)3.5-3.8 mm wide |
