1	"Leaves opposite to sub-opposite"	2
1	"Leaves alternate"	28
2	"All or most leaves simple or unifoliolate"	3
2	"All or most leaves with 2-many leaflets"	16
3	"Largest leaves less than 20 mm wide"	4
3	"Largest leaves more than 20 mm wide"	7
4	"Leaves bearing small appressed scales; petals 5 (Flindersia maculosa)"	Flindersia
4	"Leaves with stellate hairs; petals 4"	5
5	"Corolla tube much longer than lobes"	Correa
5	"Corolla tube absent, petals free to base"	6
6	"Petals tip straight or with an abaxial apiculum near tip; seed smooth or finely tuberculate; leaves simple or imparipinnate"	Boronia
6	"Petals with an incurved tip; seed rugulose; leaves simple or imparipinnate or biternate"	Cyanothamnus
7	"Fruit indehiscent, drupaceous"	8
7	"Fruit dehiscent – a capsule or a mericarp or 1-4 follicles"	10
8	"Stamens 4; fruit 1-locular"	Pitaviaster
8	"Stamens 8; fruit 4-locular"	9
9	"Petals narrow, becoming reflexed; petals and staminal filaments deciduous in fruit"	Acronychia
9	"Petals broad, ascending; petals and filaments of staminodes persistent in fruit"	Sarcomelicope
10	"Petals 5"	11
10	"Petals 4"	12
11	"Stamens 10; follicles 9-14 mm long"	Bosistoa
11	"Stamens 5 (+ 5 staminodes); capsules 75-80 mm long (Flindersia oppositifolia)"	Flindersia
12	"Petals fused to form a long tube; many parts of plant with stellate hairs 0.2-0.5 mm across"	Correa
12	"Petals valvate; stellate hairs absent or < 0.1 mm across"	13
13	"Stamens 4"	Euodia
13	"Stamens 8"	14
14	"Hairs stellate or fasciculate; inflorescence an axillary fascicle or cyme or flowers solitary"	Medicosma
14	"Hairs simple; inflorescence racemose, cymose or paniculate"	15
15	"Petals 1.5-3.5 mm long"	Brombya
15	"Petals 4-6.5 mm long"	Dinosperma
16	"Petals 5"	17
16	"Petals 4"	19
17	"Fruit comprising a 5-valved capsule; stamens 5"	Flindersia
17	"Fruit comprising 1-5 basally connate follicles; stamens 10"	18
18	"Buds with 2 pairs of opposite imbricate scales enclosing leaf or floral primordia; follicles 8-30 mm long"	Bosistoa
18	"Buds naked; follicles 6-8 mm long"	Acradenia
19	"Largest leaflets <15 mm wide; non-rainforest habitats"	20
19	"Largest leaflets >15 mm wide; rainforest habitats"	22
20	"Stamens 4"	Zieria
20	"Stamens 8"	21
21	"Petals tip straight or with an abaxial apiculum near tip; seed smooth or finely tuberculate; leaves simple or imparipinnate"	Boronia
21	"Petals with an incurved tip; seed rugulose; leaves simple or imparipinnate or biternate"	Cyanothamnus
22	"Fruits indehiscent, drupaceous; petals narrow, often recurved"	Acronychia
22	"Fruits dehiscent, 1-5 basally connate follicles; petals broad, not recurved"	23
23	"Leaves with pocket domatia in axils of secondary veins"	Bouchardatia
23	"Leaves without domatia"	24
24	"Exocarp orange to red, somewhat fleshy; leaflets 3-5 (Dinosperma erythrococcum)"	Dinosperma
24	"Exocarp brown, not fleshy; leaflets 3"	25
25	"Stamens 8"	26
25	"Stamens 4"	27
26	"Hairs simple; follicles 10-14 mm long (Melicope broadbentiana)"	Melicope
26	"Hairs stellate or fasciculate; follicles 4.5-8 mm long"	Medicosma
27	"Inflorescences racemose; seeds usually expelled from dehisced fruit"	Euodia
27	"Inflorescences paniculate; seeds usually persistent in dehisced fruit"	Melicope
28	"Leaves compound (trifoliolate or pinnate)"	29
28	"Leaves simple"	38
29	"All leaves with opposite leaflets"	30
29	"Some or all leaves with alternate leaflets"	34
30	"Petioles winged; branchlets with stout spines 1-5 cm long"	Poncirus
30	"Petioles not winged; branchlets unarmed, or spines < 1 cm long"	31
31	"Fruit with a fleshy outer layer; fewer than 10 flowers per inflorescence"	Harrisonia
31	"Fruit dry; more than 20 flowers per inflorescence"	32
32	"Petals 4, stamens 4; fruit comprising 1-4 basally connate follicles"	Zanthoxylum
32	"Petals 5, stamens 5 or 10; fruit a samara with a broad annular wing, or a 5-valved capsule"	33
33	"Stamens 5; fruit a 5-valved capsule"	Flindersia
33	"Stamens 10; fruit a samara with a broad annular wing"	Pentaceras
34	"Fully expanded leaflets hairy; petals valvate"	Micromelum
34	"Fully expanded leaflets glabrous or glabrescent (although petiolules and rachis may be hairy); petals imbricate"	35
35	"Leaflets 2-5(-6); berry pink to orange at maturity"	Glycosmis
35	"Leaflets 5-19; berry red, white or black at maturity"	36
36	"Petals 3-4 mm long"	Clausena
36	"Petals 5-15 mm long"	37
37	"Petals 5-7 mm long; leaflets 12-19; mature fruits black"	Bergera
37	"Petals 7-15 mm long; leaflets 5-11; mature fruits red or white"	Murraya
38	"Leaves and branchlets with stellate hairs or shiny scales"	39
38	"Leaves and branchlets glabrous or with simple hairs"	44
39	"Larger leaves 12-34 x 4.5-13 cm; flowers 3-merous; rainforest habitats"	Lunasia
39	"Larger leaves 2-11 x 0.4-2.5 cm; flowers 5-merous; non-rainforest habitats"	40
40	"Branchlets and leaves with shiny scales"	41
40	"Branchlets and leaves with stellate hairs (sometimes mixed with simple hairs)"	42
41	"Inflorescences umbellate; anthers basifixed"	Phebalium
41	"Inflorescences cymose; anthers versatile"	Nematolepis
42	"Flowers solitary; staminal filaments woolly-ciliate"	Eriostemon
42	"Flowers in umbels or corymbs; staminal filaments glabrous"	43
43	"Sepals minute or absent"	Asterolasia
43	"Sepals obvious, 0.4-0.8 mm long"	Leionema
44	"Branches with axillary spines OR stamens 16-40; fruit an indehiscent berry"	45
44	"Branches lacking axillary spines AND stamens (4-) 5 or 10; fruit dehiscent"	47
45	"Climbers; leaves and stems glabrous; petals 3"	Luvunga
45	"Shrubs or trees; at least young leaves and branchlets with short hairs; petals 4-5"	46
46	"Stamens 10; mature fruits bluish-black"	Severinia
46	"Stamens 16-40; mature fruits white, yellow or orange"	Citrus
47	"Stamens (4-) 5"	48
47	"Stamens 10"	50
48	"Leaves 0.7-1.2 mm wide; flowers solitary"	Drummondita
48	"Leaves 5-75 mm wide; flowers in panicles"	49
49	"Petals valvate, usually hooked at apex"	Geijera
49	"Petals imbricate or narrowly so, not hooked at apex"	Coatesia
50	"Fruits fleshy, indehiscent; flowers in panicles; rainforest habitats"	Halfordia
50	"Fruits dry, dehiscent; flowers in cymes, corymbs or solitary; non-rainforest habitats"	51
51	"Staminal filaments glabrous"	Leionema
51	"Staminal filaments variously hairy"	52
52	"Flowers bright pink; anthers pilose"	Crowea
52	"Flowers white, sometimes tinged with pink; anthers glabrous"	Philotheca