1	"Fruit succulent."	2
1	"Fruit dry."	18
2	"Inflorescences usually terminal and many-flowered; seed relatively large, usually solitary."	3
2	"Inflorescences axillary, 1 or few-flowered; seed usually small, mostly >1 per fruit, or sometimes only 1."	5
3	"Seeds with a papery testa and separate, green cotyledons."	Syzygium
3	"Seeds with no obvious testa, cotyledons fused with a conspicuous dark inclusion spreading through the centre."	4
4	"Fruit apex topped by the persistent, cylindrical, unexpanded free portion of the hypanthium; intercotyledonary inclusion spreading from the base of the fruit."	Waterhousea
4	"Fruit apex topped by the circular remnant of the hypanthium rim; intercotyledonary inclusion spreading from the summit of the fruit."	Acmena
5	"Leaves usually <10 mm wide; flowers solitary in leaf axils; plants of sclerophyll forest, rainforest, heath and scrubland."	6
5	"Most leaves >10 mm wide; flowers either solitary, clustered or in axillary raceme-like or panicle-like inflorescences; plants of rainforests, sometimes on their margins or in sclerophyll forest."	7
6	"Mature fruit white to greyish or bluish green, often with darker spots; spreading or bushy shrubs to 2 m high; coastal districts and adjacent ranges north from the Sydney district."	Austromyrtus
6	"Mature fruit green turning red or black; shrubs or small trees to 12 m high; rare, only on the McPherson and Nightcap Ranges."	Uromyrtus
7	"Mature fruit yellow, orange or red."	8
7	"Mature fruit purple or black."	13
8	"Fruit vertically ribbed, bright red."	Eugenia
8	"Fruit not vertically ribbed, usually yellow to orange, sometimes red."	9
9	"Sepals and petals mostly 4."	10
9	"Sepals and petals mostly 5, or occasionally some 4."	11
10	"Leaves 3-veined from base; fruit red turning blackish when mature."	Rhodamnia
10	"Leaves not 3-veined from base; fruit yellow to orange."	Gossia
11	"Mature fruit >2 cm diam.; sepals cohering in the bud, splitting longitudinally at flowering."	Psidium
11	"Mature fruit <2 cm diam.; sepals free in the bud."	12
12	"Leaves 1–3 cm wide; ovary 3-locular; mature fruit 5–7 mm diam., topped by erect persistent sepals; petals 4–6 mm long."	Archirhodomyrtus
12	"Leaves 2.5–6.5 cm wide; ovary 4-locular , becoming multi-locular by development of false septa; mature fruit 10–15 mm diam. with persistent sepals reflexed; petals 7–10 mm long."	Rhodomyrtus
13	"Sepals and petals 4."	14
13	"Sepals and petals 5."	15
14	"Leaves 3-veined from base."	Rhodamnia
14	"Leaves not 3-veined from base."	Lenwebbia
15	"Fruit vertically lobed; ovary 4- or 5-locular."	Decaspermum
15	"Fruit not vertically lobed; ovary 2- or 3-locular."	16
16	"Petals 5–7 mm long; testa membranous to papery."	Pilidiostigma
16	"Petals 2–5 mm long; testa hard and bony."	17
17	"Anthers with a conspicuous apical appendage; flowers and fruit usually solitary, pendent."	Uromyrtus
17	"Anthers topped only by a small apical gland; flowers and fruit occasionally solitary, but usually >1, not pendent."	Gossia
18	"Flower buds covered with a calyptra formed from the fused perianth segments."	19
18	"Flower buds not covered with a calyptra."	20
19	"Inflorescences compound, terminal or axillary and anthers versatile and opening by parallel slits and disc steeply depressed in fruit."	Corymbia
19	"Inflorescences, anthers and fruit not a combination of the above characters."	Eucalyptus
20	"Stamens grouped (usually distinctly fused) into 5 bundles opposite the petals."	21
20	"Stamens not in 5 bundles, usually free but occasionally fused into a short tube at the base."	24
21	"Fruit exserted from the hypanthium; seeds flat, winged."	Tristaniopsis
21	"Fruit included in the hypanthium or barely exserted; seeds linear."	22
22	"Flowers sessile, aggregated into head- or spike-like conflorescences."	Melaleuca
22	"Flowers pedicellate, inflorescences cymose."	23
23	"Leaves opposite and decussate; oil ducts absent from the petioles."	Tristania
23	"Leaves alternate along branchlets but clustered in false whorls at the end of the branchlets; oil ducts, containing milky oil, present in the petioles."	Lophostemon
24	"Leaves opposite."	25
24	"Leaves alternate."	43
25	"Most leaves >5 mm wide."	26
25	"Most leaves <5 mm wide."	30
26	"Flowers sessile."	27
26	"Flowers pedicellate."	28
27	"Flowers usually 7 per inflorescence, hypanthium ± 5 mm diam.; fruit a woody syncarp."	Syncarpia
27	"Flowers numerous in the inflorescence, hypanthium 1–1.5 mm diam.; fruit clustered but not united."	Choricarpia
28	"Fruit a loculicidal capsule; hypanthium woody, usually ribbed; sepals persistent, erect,± woody."	Angophora
28	"Fruit not loculicidally dehiscent; hypanthium papery to leathery, not ribbed; sepals persistent, spreading, membranous."	29
29	"Leaves not strongly odoriferous when crushed, margins ± flat; summit of ovary and fruit domed, hairy."	Backhousia
29	"Leaves with a strong aniseed smell when crushed, margins undulating; summit of ovary and fruit flat, glabrous."	Anetholea
30	"Ovary and fruit 2- or 3-locular."	31
30	"Ovary and fruit 1-locular."	40
31	"Stamens exceeding the petals."	Kunzea
31	"Stamens shorter than the petals."	32
32	"Ovary and fruit 2-locular."	Baeckea
32	"Ovary and fruit 3-locular."	33
33	"Anthers adnate to filament, dehiscing by pores or short parallel slits."	34
33	"Anthers versatile, dehiscing by long parallel slits."	36
34	"Inflorescence usually of (2–)3 or more flowers; bracteoles 4–many, clustered at the apex of the peduncle; peduncles generally longer than pedicels."	Sannantha
34	"Inflorescence usually of solitary flowers; bracteoles 2; peduncles generally shorter than pedicels."	35
35	"Sepals ‘compound’, the dorsal lobe often acute; summit of fruit slightly exserted from the fruiting hypanthium; leaves acute to obtuse."	Kardomia
35	"Sepals simple, obtuse; summit of fruit at or within the rim of the fruiting hypanthium; leaves with a small, recurved mucro."	Harmogia
36	"Ovules and seeds D-shaped, angular."	Baeckea
36	"Ovules and seeds ± reniform, not angular."	37
37	"Some stamens opposite centre of petals."	38
37	"No stamens opposite centre of petals."	39
38	"Ovules and seeds discoid, angular; ovary and fruit 2- or 3-locular (if ovules and seeds reniform and ovary and fruit 3-locular, then bracteoles not persistent)."	Baeckea
38	"Ovules and seeds reniform; ovary and fruit 3-locular; bracteoles persistent."	Euryomyrtus
39	"Stamens 5–8; ovules 2 per loculus."	Ochrosperma
39	"Stamens 14–18; ovules 8–13 per loculus."	Triplarina
40	"Stamens 10, twice as many petals, alternating with 10 staminodes; style long-exserted."	41
40	"Stamens 5–12, up to twice as many as petals, staminodes lacking; style included or very shortly exserted."	42
41	"Sepals terminating in one or more slender processes."	Homoranthus
41	"Sepals lacking slender processes, entire or shortly ciliate."	Darwinia
42	"Stamens <10, usually opposite the sepals; anther connective gland prominent, clavate or ± urceolate."	Thryptomene
42	"Stamens 10 or 12 or if 5 then opposite the petals; anther connective gland small, subglobose."	Micromyrtus
43	"Ovary 1-locular; sepals persistent, membranous, terminating in a long, slender awn."	Calytrix
43	"Ovary >1-locular; sepals persistent or not persistent, never ending in an awn."	44
44	"Stamens shorter, or scarcely longer, than the petals."	Leptospermum
44	"Stamens considerably longer than the petals."	45
45	"Sepals not persistent, flowers aggregated into spike-like conflorescences."	Callistemon
45	"Sepals persistent, flowers in heads or solitary in the leaf axils."	Kunzea