1	"Leaves simple (often of 1 leaflet)"	2
1	"At least some leaves of 3 or more leaflets"	15
2	"Young plants with spines; fruit with juice sacs"	Citrus
2	"Branches never bearing spines; fruit without juice sacs"	3
3	"Fertile stamens 5"	4
3	"Fertile stamens 8 or 10"	8
4	"Sterile stamens absent"	5
4	"Sterile stamens present (sometimes within the base of each petal)"	6
5	"Branches and leaves pendulous"	Geijera
5	"Leaves not as above, mostly broad and relatively large, not pendulous"	Skimmia
6	"Tree with parallel-veined leaves"	Calodendrum
6	Shrub	7
7	"Bush Erica-like; leaves linear, alternate; flowers less than 1 cm wide; 1 sterile stamen contained within the base of each petal"	Coleonema
7	"Plants not Erica-like; leaves alternate or opposite, lanceolate to oblong; flowers more than 1 cm wide; sterile stamens free"	Adenandra
8	"Petals and sepals 4"	9
8	"Petals and sepals 5"	12
9	"Leaves alternate"	Eriostemon
9	"Leaves opposite"	10
10	"Petals united, sometimes separating as the flower expands"	Correa
10	"Petals free"	11
11	"Leaves mostly less than 8 cm long; flowers pink, mauve, white or blue; styles more or less terminal"	Boronia
11	"Leaves 8–15 cm long; flowers creamy white; styles not terminal"	Medicosma
12	"Calyx minute; petals edge to edge in bud, with star-shaped hair outside"	Asterolasia
12	"Calyx conspicuous or, if small, then the petals overlapping in bud"	13
13	"Stamens spreading; anthers without a white tip but sometimes with a gland"	Phebalium
13	"Stamens usually curved over the ovary, the anthers with a sterile white tip"	14
14	"Anthers hairy"	Crowea
14	"Anthers hairless"	Eriostemon
15	"Leaves palmate"	Choisya
15	"Leaves pinnate"	16
16	"Leaflets alternate"	17
16	"Leaflets opposite or 3 only"	18
17	"Leaflets simple; flowers white, sepals and petals 5; fruit a berry"	Murraya
17	"Leaflets subdivided; flowers yellow, sepals and petals 4; fruit a capsule"	Ruta
18	"Stamens 4; disk with 4 lobes opposite the petals"	Zieria
18	"Stamens 8; disk not lobed"	Boronia