1a	Leaves ternate, chartaceous	4. Coprosma nephelephila
1b	Leaves opposite, thin- to thick-coriaceous	2
2a	Petioles 0–0.1 cm long; Leaf blades with secondary and higher venation obscure, only the midvein conspicuous	3. Coprosma meyeri
2b	Petioles 0.3–1.7 cm long; leaf blades with secondary and higher venation conspicuous, reticulate	3
3a	Leaves 0.9–1.8 cm wide, narrowly elliptic	2. Coprosma fatuhivaensis
3b	Leaves 2.0–6.0 (–13.0) cm wide, oblanceolate, oblong, or elliptic-oblanceolate	4
4a	Lower surface of leaves strigose along the veins; leaves thick-coriaceous	1. Coprosma esulcata
4b	Lower surface of leaves glabrous; leaves thin-coriaceous	5
5a	Leaves 5.1–9.1 × 2.1–3.6 cm; stipules 1.5–3 mm long	6. Coprosma temetiuensis
5b	Leaves 8.5–19.7 × 3–13 cm; stipules 3–5 mm long	5. Coprosma reticulata