1	"Leaves on the mature tree/mallee opposite or sub-opposite"	2
1	"Leaves on the mature tree/mallee alternate"	18
2	"Individual inflorescences (umbels) 3-flowered"	3
2	"Individual inflorescences (umbels) 7- many flowered"	6
3	"Trees with fibrous (or ‘stringy’) persistent bark throughout"	4
3	"Mallees with bark deciduous throughout or with persistent bark on basal half"	5
4	"Sepals on mature flower buds 1-3 mm long, operculum hemispherical; fruits circular in cross-section"	"Eucalyptus tetrodonta"
4	"Sepals on mature flower buds 5-9 mm long, operculum conical to apiculate; fruits square in cross-section"	"Eucalyptus megasepala"
5	"Leaves on mature plant petiolate, green"	"Eucalyptus odontocarpa"
5	"Leaves on mature plant sessile (often connate), bluish-grey"	"Eucalyptus gamophylla"
6	"Bark completely or predominantly deciduous (persistent bark < 1/3 tree height)"	7
6	"Bark persistent throughout or almost throughout"	10
7	"Leaves on mature trees scabrid, sessile or petioles < 2 mm"	8
7	"Leaves on mature trees glabrous, conspicuously petiolate"	9
8	"Pedicels 16-30 mm long; leaves on mature tree 8-17 cm long"	"Corymbia confertiflora"
8	"Pedicels 2-7 mm long; leaves on mature tree 2-6.5 cm long"	"Corymbia aspera"
9	"Fruits 11-14 mm long, with 5 prominent longitudinal ribs"	"Angophora costata"
9	"Fruits 8-11 mm long, without ribs or ribs faintly visible"	"Angophora leiocarpa"
10	"Petioles 8-25 mm long"	11
10	"Leaves sessile or petioles < 4 mm long"	12
11	"Fruits 7-11 mm long, pedicels 4-13 mm long"	"Angophora floribunda"
11	"Fruits 11-15 mm long, pedicels 13-27 mm long"	"Angophora woodsiana"
12	"Fruits 13-29 mm wide; bark tessellated (bloodwood)"	13
12	"Fruits 4-11 mm wide; bark various, but not tessellated"	14
13	"Leaves on mature tree 2.5-7 cm long; new leafy growth pale green"	"Corymbia setosa"
13	"Leaves on mature tree 8-15 cm long; new leafy growth yellow to rusty-coloured"	"Corymbia ferruginea"
14	"Bark dark grey to black, very hard (ironbark)"	15
14	"Bark grey, fibrous or scaly, not hard (pieces of bark readily removed by hand)"	16
15	"Fruits 8-13 mm long, often with longitudinal ribs; leaves on mature trees 5-8 cm wide"	"Eucalyptus shirleyi"
15	"Fruits 3-7 mm long, without longitudinal ribs; leaves on mature trees 2-5 cm wide"	"Eucalyptus melanophloia"
16	"Branchlets pruinose; leaves grey to silvery; fruits without ribs"	"Eucalyptus pruinosa"
16	"Branchlets not pruinose; leaves green; fruits with prominent longitudinal ribs"	17
17	"Leaves on the mature tree 7-22 mm wide; fruits longer than broad"	"Angophora melanoxylon"
17	"Leaves on the mature tree 25-60 mm wide; fruits broader than long"	"Angophora subvelutina"
18	"Umbels solitary (rarely in pairs) in leaf axil, i.e. each peduncle subtended by a leaf or leaf scar"	19
18	"Umbels compound, borne in leafless groups, either terminal or axillary i.e. no peduncles or very few peduncles subtended by a leaf or leaf scar"	116
19	"Persistent (‘rough’) bark extending for more than two-thirds of tree/mallee height"	20
19	"Bark deciduous (‘smooth’) throughout, or persistent bark extending up to two-thirds of tree/mallee height"	66
20	"Fresh adult leaves discolorous"	21
20	"Fresh adult leaves concolorous"	29
21	"Fruits 4-6.5 mm diameter"	22
21	"Fruits 6.5-17 mm diameter"	24
22	"Fruiting pedicels 6-15 mm long; outer bark brown or orangy-brown; adult leaves without oil glands"	"Eucalyptus tenuipes"
22	"Fruiting pedicels 2-6 mm long; outer bark grey; adult leaves with obvious oil glands"	23
23	"The opposite sessile juvenile leaves linear, persistent on plants to c. 1 metre high; adult leaves dull bluish-green"	"Eucalyptus helidonica"
23	"The opposite sessile juvenile leaves ovate, persistent only on small plants < 20 cm high; adult leaves bright green"	"Eucalyptus acmenoides"
24	"Outer persistent bark yellow to orange"	"Eucalyptus similis"
24	"Outer persistent bark grey to brown"	25
25	"Fruiting valves connate at apex; fruits cylindrical"	"Eucalyptus robusta"
25	"Fruiting valves all separate; fruits globose, obconical, cupular or ovoid"	26
26	"Operculum patelliform, much shorter than hypanthium; fruits globose, valves consistently 3"	"Eucalyptus baileyana"
26	"Operculum hemispherical, conical or horn-shaped, same length as or much longer than hypanthium; fruits obconical to cupular, valves 3 or 4"	27
27	"Adult leaves 35-75 mm wide; fruits 10-15 mm long"	"Eucalyptus pellita"
27	"Adult leaves 15-35 mm wide; fruits 6-10 mm long"	28
28	"Operculum 2-3 times longer than hypanthium; pedicels 6-10 mm long"	"Eucalyptus resinifera"
28	"Operculum 1-1.5 times longer than hypanthium; pedicels 0-4 mm long"	"Eucalyptus notabilis"
29	"Tips of fruiting valves enclosed (well below rim of fruit)"	30
29	"Tips of fruiting valves exserted or at rim level"	38
30	"Fruits longitudinally ribbed"	31
30	"Fruit surface smooth, without ribs"	32
31	"Umbels 7-flowered; stamens white; fruiting valves four"	"Eucalyptus planchoniana"
31	"Umbels 11-15-flowered; stamens orange; fruiting valves two"	"Eucalyptus phoenicea"
32	"Fruits 7-11 mm long"	33
32	"Fruits 3.5-7 mm long"	35
33	"Persistent bark black, hard and furrowed (ironbark)"	"Eucalyptus sideroxylon"
33	"Persistent bark grey and fibrous, not furrowed"	34
34	"Fruits ellipsoidal or ovoid-truncate; adult leaves green"	"Eucalyptus obliqua"
34	"Fruits globose-truncate; adult leaves bluish-grey"	"Eucalyptus sphaerocarpa"
35	"Pedicels 0-2 mm long; adult leaves oblique at base; juvenile leaves hairy"	36
35	"Pedicels 2-10 mm long; adult leaves symmetrical at base; juvenile leaves glabrous"	37
36	"Fruits 3.5-5.5 mm long"	"Eucalyptus conglomerata"
36	"Fruits 6-7 mm long"	"Eucalyptus mckieana"
37	"Fruiting valves 3-4; umbels 11-21-flowered; juvenile leaves sessile"	"Eucalyptus radiata"
37	"Fruiting valves 5-6; umbels 7-flowered; juvenile leaves petiolate"	"Eucalyptus melliodora"
38	"Fruiting pedicels 0-1 mm long"	39
38	"Fruiting pedicels 1-6 mm long"	47
39	"Bark scaly, box-type; juvenile leaves glabrous"	40
39	"Bark long-fibred (stringybark); juvenile leaves hairy"	41
40	"Leaves with pustulate or irregular margins; peduncles 7-12 mm long"	"Eucalyptus quadrangulata"
40	"Leaves with entire margins; peduncles 1-5 mm long"	"Eucalyptus banksii"
41	"Fruits 4-7 mm diameter"	42
41	"Fruits 7-12 mm diameter"	44
42	"Flower buds fusiform"	"Eucalyptus globoidea"
42	"Flower buds ovoid to clavate"	43
43	"Fruits 4-6 mm diameter; operculum conical"	"Eucalyptus mensalis"
43	"Fruits 6-7 mm diameter; operculum hemispherical"	"Eucalyptus reducta"
44	"Flower buds angular"	45
44	"Flower buds circular in cross-section"	46
45	"Adult leaves 25-50 mm wide; fruits 9-11 mm long (excluding valves)"	"Eucalyptus williamsiana"
45	"Adult leaves 11-23 mm wide; fruits 6-8 mm long (excluding valves)"	"Eucalyptus youmanii"
46	"Deciduous bark extending to branches about 10 cm diameter; mature flower buds 3.5-4 mm wide"	"Eucalyptus laevopinea"
46	"Deciduous bark extending to branches about 3 cm diameter; mature flower buds 2.5-3 mm wide"	"Eucalyptus tindaliae"
47	"Flower buds with an operculum scar"	48
47	"Flower buds lacking an operculum scar"	54
48	"Bark persistent to twigs, dark grey, deeply furrowed, hard (ironbark); fruiting valves at rim-level"	49
48	"Bark deciduous on outer branches; persistent bark grey, fibrous, soft (fibrous-barks); fruiting valves exserted"	50
49	"Leaves glossy green at all stages; fruits 4-6 mm diameter"	"Eucalyptus virens"
49	"Leaves dull grey-green at all stages; fruits 6-8 mm diameter"	"Eucalyptus panda"
50	"Operculum about same length as hypanthium"	51
50	"Operculum at least 1.5 times longer than hypanthium"	52
51	"Branchlets and flower buds pruinose; fruits 3-4 mm long"	"Eucalyptus nova-anglica"
51	"Branchlets and flower buds not pruinose; fruits 4.5-6 mm long"	"Eucalyptus bridgesiana"
52	"Fruits 4-5 mm long (excluding valves), disc horizontal to slightly convex"	"Eucalyptus terrica"
52	"Fruits 5-10 mm long (excluding valves), disc strongly convex"	53
53	"Adult leaves 18-36 mm wide; fruits 6-10 mm long; juvenile leaves lanceolate to ovate"	"Eucalyptus ammophila"
53	"Adult leaves 10-25 mm wide; fruits 5-7 mm long; juvenile leaves linear"	"Eucalyptus exserta"
54	"Operculum hemispherical, +/- umbonate; outer branches obviously smooth-barked"	55
54	"Operculum conical; only very small branches smooth-barked"	57
55	"Branchlets pruinose; fruits 6-8 mm diameter; operculum conspicuously umbonate"	"Eucalyptus andrewsii"
55	"Branchlets not pruinose; fruits 4-6 mm diameter; operculum minutely umbonate"	56
56	"Fruits hemispherical to cupular; staminodes consistently present"	"Eucalyptus montivaga"
56	"Fruits campanulate to obconical; staminodes absent or rarely present"	"Eucalyptus campanulata"
57	"Juvenile leaves petiolate, hairy (true stringybarks)"	58
57	"Juvenile leaves sessile, glabrous (white mahoganies)"	61
58	"Adult leaves entire"	59
58	"Adult leaves with irregular margins, due to leaf-margin lenticels"	60
59	"Adult leaves less than 3 times longer than wide"	"Eucalyptus caliginosa"
59	"Adult leaves more than 3 times longer than wide"	"Eucalyptus eugenioides"
60	"Fruiting pedicels 2.5-5 mm long; fruiting disc flat"	"Eucalyptus erosa"
60	"Fruiting pedicels 1-2.5 mm long; fruiting disc convex"	"Eucalyptus mckieana"
61	"Disc of fruit partly flat, with a broad (1-1.5 mm) annulus"	62
61	"Disc of fruit descending, rim of fruit very narrow"	63
62	"Juvenile leaves ovate to orbicular, 25-60 mm wide"	"Eucalyptus latisinensis"
62	"Juvenile leaves lanceolate, < 25 mm wide"	"Eucalyptus psammitica"
63	"Leaf canopy bluish-green in reflected sunlight"	"Eucalyptus carnea"
63	"Leaf canopy bright green in reflected sunlight"	64
64	"Fruits < 6 mm long or < 6 mm diameter"	"Eucalyptus apothalassica"
64	"Fruits > 6 mm long and > 6 mm diameter"	65
65	"Juvenile leaves ovate to orbicular, 25-60 mm wide"	"Eucalyptus portuensis"
65	"Juvenile leaves lanceolate, < 25 mm wide"	"Eucalyptus mediocris"
66	"Fresh adult leaves distinctly discolorous"	67
66	"Fresh adult leaves concolorous or slightly discolorous"	76
67	"Fruits 18-45 mm diameter, with numerous longitudinal ribs; persistent bark extending about half tree height; stamens orange"	68
67	"Fruits 4-12 mm diameter, unribbed or with a single rib; persistent bark covering less than 10% of tree height"	69
68	"Persistent bark flaky, yellowish-brown"	"Eucalyptus chartaboma"
68	"Persistent bark fibrous, grey-brown to reddish-brown"	"Eucalyptus miniata"
69	"Deciduous bark shiny and smooth, a short stocking of persistent bark present at base of trunk"	70
69	"Deciduous bark dull, granular, shedding to ground level (grey gums)"	72
70	"Adult leaves ovate; juvenile leaves broadly ovate to orbicular; persistent bark usually extending for < 1 metre"	"Eucalyptus deanei"
70	"Adult leaves lanceolate; juvenile leaves lanceolate to ovate; persistent bark usually extending for 1-5 metres"	71
71	"Fruiting valves incurved; newly exposed deciduous bark pure white"	"Eucalyptus grandis"
71	"Fruiting valves strongly spreading; newly exposed deciduous bark creamy with patches of yellow and/or blue"	"Eucalyptus saligna"
72	"Fruits small; bark shedding in broad curved ‘plates’"	73
72	"Fruits large; bark shedding in long strips"	74
73	"Operculum conical; umbels 7-flowered; fruits 6-8 mm wide"	"Eucalyptus major"
73	"Operculum hemispherical; umbels 9-15-flowered; fruits 4-6 mm wide"	"Eucalyptus propinqua"
74	"Operculum strongly beaked, longer than hypanthium"	"Eucalyptus longirostrata"
74	"Operculum conical, not beaked, same length or shorter than hypanthium"	75
75	"Juvenile leaves 15-30 mm wide; peduncles weakly to moderately flattened"	"Eucalyptus biturbinata"
75	"Juvenile leaves 20-50 mm wide; peduncles strongly flattened"	"Eucalyptus grisea"
76	"Fruiting valves at rim-level or enclosed"	77
76	"Fruiting valves exserted"	85
77	"Leaf veins longitudinal, +/- parallel, no distinct midvein; extremely rare in Qld (Granite Belt)"	"Eucalyptus pauciflora"
77	"Leaves with a distinct midvein, and lateral veins diverging by at least 30 degrees"	78
78	"Adult leaves with intramarginal vein positioned more than 20% of distance from leaf margin to midrib"	79
78	"Adult leaves with intramarginal vein positioned less than 20% of distance from leaf margin to midrib"	80
79	"Tall slender tree; bark deciduous throughout; adult leaves 9-17 mm wide"	"Eucalyptus argophloia"
79	"Short to medium spreading tree; bark persistent at least on lower trunk; adult leaves 14-27 mm wide"	"Eucalyptus melliodora"
80	"Bark persistent (and fibrous) to about half tree height"	"Eucalyptus pilularis"
80	"Bark deciduous throughout or with short stocking of persistent bark"	81
81	"Adult leaves 4-12 mm wide"	82
81	"Adult leaves 12-30 mm wide"	83
82	"Fruits cylindrical or barrel shaped; a tree; deciduous bark shedding in flakes or irregular patches"	"Eucalyptus thozetiana"
82	"Fruits cup-shaped; usually a mallee; deciduous bark shedding in long ribbons"	"Eucalyptus viridis"
83	"A mallee; operculum rugose; some inflorescences 3-flowered"	"Eucalyptus codonocarpa"
83	"Trees; operculum smooth; all inflorescences 7-15-flowered"	84
84	"Bark with numerous insect scribbles; inflorescences 9-15-flowered; fruits 5-7 mm long"	"Eucalyptus racemosa"
84	"Bark lacking insect scribbles; inflorescences 7-flowered; fruits 7-10 mm long"	"Eucalyptus oreades"
85	"Operculum 0.5-1.5 times as long as hypanthium"	86
85	"Operculum at least 1.5 times longer than hypanthium"	96
86	"Flower buds and fruits sessile or pedicel less than 1.5 mm long"	87
86	"Flower buds and fruits with pedicels 1.5-6 mm long"	90
87	"Adult leaves broadly-ovate to orbicular, 50-115 mm wide"	"Eucalyptus platyphylla"
87	"Adult leaves narrow-lanceolate to lanceolate, 12-40 mm wide"	88
88	"Deciduous bark smooth, +/- shiny, adult leaves 10-20 mm wide; NW Qld"	"Eucalyptus herbertiana"
88	"Deciduous bark granular, dull, adult leaves 16-45 mm wide; SE Qld"	89
89	"Fruits 5-7 mm wide; adult leaves 16-30 mm wide"	"Eucalyptus hallii"
89	"Fruits 7-11 mm wide; adult leaves 25-45 mm wide"	"Eucalyptus broviniensis"
90	"Umbels borne in pairs in leaf axils"	"Eucalyptus pachycalyx"
90	"Umbels borne singly in leaf axils"	91
91	"Adult leaves 40-80 mm long, dull, bluish-grey; small tree or mallee; NW Qld"	"Eucalyptus leucophloia"
91	"Adult leaves 80-200 mm long, +/- shiny, green; small to large trees; SE Qld"	92
92	"Adult leaves ovate, < 3 times longer than broad"	"Eucalyptus camphora"
92	"Adult leaves narrow-lanceolate to lanceolate, 5-10 times longer than broad"	93
93	"Fruits 4-5 mm long (excluding valves); opposite juvenile leaves rarely seen"	"Eucalyptus scoparia"
93	"Fruits 4.5-7 mm long (excluding valves); opposite juvenile leaves persisting on plants about 1 metre high"	94
94	"Juvenile leaves lanceolate, 4-8 times longer than broad"	"Eucalyptus nobilis"
94	"Juvenile leaves broadly-ovate to orbicular, 1-2 times longer than broad"	95
95	"Juvenile leaves petiolate, with crenulate margins; fruits 4.5-5 mm long (excluding valves)"	"Eucalyptus dunnii"
95	"Juvenile leaves sessile, with entire margins; fruits 5-7 mm long (excluding valves)"	"Eucalyptus dalrympleana"
96	"Fruits 18-30 mm wide; flower buds and fruits with numerous longitudinal ridges"	"Eucalyptus pachyphylla"
96	"Fruits 4-10 mm wide; flower buds and fruits smooth"	97
97	"Base of fruiting valves below rim level"	98
97	"Whole of fruiting valves above the rim"	103
98	"Some persistent bark at base; mostly mallees"	99
98	"Bark deciduous throughout; trees"	100
99	"Mature flower buds 2.5-3 mm wide; operculum conical"	"Eucalyptus bakeri"
99	"Mature flower buds 4-5.5 mm wide, operculum distinctly beaked"	"Eucalyptus socialis"
100	"Mature flower buds 3-5 mm wide; adult leaves 12-30 mm wide"	101
100	"Mature flower buds 4.5-7 mm wide; adult leaves 25-35 mm wide"	102
101	"Juvenile leaves linear"	"Eucalyptus seeana"
101	"Juvenile leaves lanceolate"	"Eucalyptus interstans"
102	"Flower buds 7-9 per umbel, pruinose; leaves 60-120 mm long, pruinose"	"Eucalyptus prava"
102	"Flower buds 9-15 per umbel, not pruinose; leaves 100-250 mm long, not pruinose"	"Eucalyptus bancroftii"
103	"Persistent bark extending for one-third to two-thirds of tree/mallee height"	104
103	"Persistent bark extending less than one-third of tree height"	108
104	"Fruiting disc strongly ascending"	105
104	"Fruiting disc flat or slightly ascending"	107
105	"Persistent bark dark grey to black, closely adhering; mature flower buds 12-15 mm long"	"Eucalyptus brassiana"
105	"Persistent bark pale grey, rather loose; mature flower buds 7-11 mm long"	106
106	"Adult leaves initially pruinose; tree; fruiting disc 1.5-2 mm wide"	"Eucalyptus lockyeri"
106	"Adult leaves not pruinose; mallee; fruiting disc 2-3 mm wide"	"Eucalyptus ammophila"
107	"Mature flower buds 7-8 mm long; juvenile leaves lanceolate"	"Eucalyptus terrica"
107	"Mature flower buds 9-15 mm long; juvenile leaves ovate to broadly-ovate"	"Eucalyptus chloroclada"
108	"Umbels 9-15-flowered"	109
108	"Umbels 7-flowered, rarely 9-flowered"	112
109	"Flower buds and fruits sessile"	"Eucalyptus amplifolia"
109	"Flower buds and fruits with pedicels at least 2 mm long"	110
110	"Adult leaves ovate to elliptical, 60-80 mm long, about twice as long as wide"	"Eucalyptus infera"
110	"Adult leaves narrow-lanceolate to lanceolate, 80-150 mm long, 5-9 times as long as wide"	111
111	"Mallee 2-5 m high; adult leaves 8-16 mm wide"	"Eucalyptus kabiana"
111	"Tree 10-20 m high; adult leaves 14-35 mm wide"	"Eucalyptus blakelyi"
112	"Fruiting disc flat or nearly so"	113
112	"Fruiting disc strongly ascending"	114
113	"Persistent bark often lacking; flower buds and branchlets pruinose"	"Eucalyptus dealbata"
113	"Some persistent bark always present; flower buds and branchlets not pruinose"	"Eucalyptus chloroclada"
114	"Mallee; pedicels 0-2(-4) mm long; juvenile leaves narrow-lanceolate"	"Eucalyptus nudicaulis"
114	"Trees; pedicels 3-10 mm long; juvenile leaves broad-lanceolate to broadly-ovate"	115
115	"Fruiting valves inward pointing (in the same plane as the disc); seeds black, pitted"	"Eucalyptus tereticornis"
115	"Fruiting valves +/- erect (at a steeper angle than the disc); seeds yellow, smooth"	"Eucalyptus camaldulensis"
116	"Umbels borne in axillary clusters, below the canopy"	117
116	"Umbels borne in terminal panicles or corymbs"	129
117	"Inflorescence comprising > 50 umbels; adult leaves discolorous; persistent bark extending for at least two-thirds tree height"	"Eucalyptus cloeziana"
117	"Inflorescence comprising 3-10 umbels; adult leaves concolorous; bark deciduous throughout or persistent bark extending less than two-thirds of tree height"	118
118	"Fruits woody; trunk often with depressions or ‘dimples’ (spotted gums and Hillgrove gum)"	119
118	"Fruits thin-walled (‘papery’, can be crushed in the fingers); trunk without depressions (ghost gums)"	121
119	"Operculum scar present; some umbels 3-flowered, some 7-flowered; lateral veins in adult leaves 3-6 mm apart"	"Eucalyptus michaeliana"
119	"Operculum scar absent; all umbels 3-flowered; lateral veins in adult leaves 1-2 mm apart"	120
120	"Fruits 12-17 mm wide; adult leaves 24-45 mm wide"	"Corymbia henryi"
120	"Fruits 7.5-12 mm wide; adult leaves 6-28 mm wide"	"Corymbia citriodora"
121	"Adult and juvenile leaves bright glossy green"	122
121	"Adult and juvenile leaves dull green or bluish-grey"	124
122	"Pedicels 7-17 mm long; fruits 9-13 mm wide; adult leaves 28-80 mm wide"	"Corymbia grandifolia"
122	"Pedicels 2-6 mm long; fruits 7-10 mm wide; adult leaves 7-32 mm wide"	123
123	"Adult leaves 7-20 mm wide"	"Corymbia aparrerinja"
123	"Adult leaves 14-32 mm wide"	"Corymbia dallachiana"
124	"Adult leaves 60-150 mm wide; pedicels 19-35 mm long"	"Corymbia disjuncta"
124	"Adult leaves 6-30 mm wide; pedicels 1-11 mm long"	125
125	"Longest adult leaves 40-120 mm long"	126
125	"Longest adult leaves 100-220 mm long"	127
126	"Pedicels 1-3 mm long"	"Corymbia blakei"
126	"Pedicels 5-11 mm long"	"Corymbia gilbertensis"
127	"Adult leaves 17-35 mm wide; pedicels (2-)4-8 mm long"	"Corymbia papuana"
127	"Adult leaves 8-20 mm wide; pedicels 1-6 mm long"	128
128	"Bark completely deciduous or with short stocking of persistent bark (< 10% of tree height)"	"Corymbia bella"
128	"Persistent bark extending for 10-50% of tree height"	"Corymbia tessellaris"
129	"Lateral veins of adult leaves closely spaced (1-2 mm apart); fruits ovoid to urceolate, usually more than 10 mm wide (bloodwoods); inflorescences corymbose"	130
129	"Lateral veins of adult leaves widely spaced (3-8 mm apart); fruits mostly obconical, cupular, campanulate or hemispherical, usually less than 10 mm wide; inflorescences paniculate"	171
130	"Operculum scar present (yellow jackets + C. torelliana)"	131
130	"Operculum scar absent (‘red’ bloodwoods)"	143
131	"Bark predominantly deciduous, green or greenish-grey; fruits globose"	"Corymbia torelliana"
131	"Bark predominantly persistent, yellowish-brown, yellow or orange (yellow jackets)"	132
132	"Crown of mature tree with at least some scabrid, peltate leaves"	133
132	"Crown of mature tree composed entirely of smooth, non-peltate leaves"	136
133	"Crown comprising both smooth adult leaves and scabrid juvenile leaves"	134
133	"All of crown comprising scabrid juvenile leaves"	135
134	"Operculum broader than hypanthium; fruits 20-32 mm long"	"Corymbia watsoniana"
134	"Operculum same width as hypanthium; fruits 11-14 mm long"	"Corymbia dimorpha"
135	"Leaves broadly ovate to orbicular, 6-9 cm wide; petioles 12-24 mm long"	"Corymbia peltata"
135	"Leaves narrowly ovate, 2-4 cm wide; petioles 8-14 mm long"	"Corymbia scabrida"
136	"Adult leaves green, moderately glossy"	137
136	"Adult leaves grey-green, dull"	140
137	"Adult leaves distinctly discolorous"	"Corymbia leptoloma"
137	"Adult leaves concolorous"	138
138	"Fruits 9-12 mm long"	"Corymbia bunites"
138	"Fruits 14-18 mm long"	139
139	"Pedicels 0-3 mm long; flower buds usually glaucous"	"Corymbia aureola"
139	"Pedicels 3-6 mm long; flower buds green"	"Corymbia bloxsomei"
140	"Fruits 20-32 mm long; operculum broader than hypanthium"	"Corymbia watsoniana"
140	"Fruits 8-15 mm long; operculum same width as hypanthium"	141
141	"Juvenile leaves peltate"	"Corymbia leichhardtii"
141	"Juvenile leaves not peltate"	142
142	"Adult leaves 18-28 mm wide; petioles 12-20 mm long"	"Corymbia bunites"
142	"Adult leaves 25-40 mm wide; petioles 20-38 mm long"	"Corymbia petalophylla"
143	"Persistent bark extending right up to twigs"	144
143	"At least the small branches (2-4 cm diam.) smooth-barked, and sometimes deciduous (smooth) bark covering the whole tree"	150
144	"Fruits 35-50 mm long; mature flower buds 22-28 mm long; stamens pink or red"	"Corymbia ptychocarpa"
144	"Fruits 9-32 mm long; mature flower buds 4.5-15 mm long; stamens white"	145
145	"Adult leaves concolorous or slightly discolorous; mature flower buds 4.5-6.5 mm long; juvenile leaves broadly-ovate"	"Corymbia nesophila"
145	"Adult leaves strongly discolorous; mature flower buds 7-15 mm long; juvenile leaves lanceolate"	146
146	"Adult leaves 4-7 times longer than wide; surface of flower buds smooth; fruits with numerous pale speckles"	"Corymbia intermedia"
146	"Adult leaves 7-10 times longer than wide; surface of flower buds scurfy; fruits without speckles"	147
147	"Mature flower buds 12-15 mm long"	148
147	"Mature flower buds 9-12 mm long"	149
148	"Fruits 1.8-2.2 times longer than broad"	"Corymbia polycarpa"
148	"Fruits 1.4-1.8 times longer than broad"	"Corymbia plena"
149	"Fruits 22-30 mm long"	"Corymbia novoguinensis"
149	"Fruits 14-22 mm long"	"Corymbia clarksoniana"
150	"Persistent bark covering less than two-thirds of tree height"	151
150	"Persistent bark covering more than two-thirds of tree height"	159
151	"Adult leaves slightly to distinctly discolorous"	152
151	"Adult leaves concolorous"	155
152	"Adult leaves 30-90 mm wide"	153
152	"Adult leaves 6-23 mm wide"	154
153	"Fruits 19-25 mm long; adult leaves lacking an intramarginal vein"	"Corymbia curtipes"
153	"Fruits 8-12 mm long; adult leaves with an intramarginal vein"	"Corymbia latifolia"
154	"Mature flower buds 6-7 mm long; juvenile leaves not peltate"	"Corymbia serendipita"
154	"Mature flower buds 9-10 mm long; juvenile leaves peltate"	"Corymbia stockeri"
155	"Mature flower buds 9-15 mm long; fruits 19-35 mm long"	"Corymbia terminalis"
155	"Mature flower buds 5-8 mm long; fruits 8-20 mm long"	156
156	"Bark deciduous to ground level or with thin scaly patches of +/- persistent bark on lower half"	"Corymbia capricornia"
156	"Thick persistent bark on lower one-third to two-thirds of tree height"	157
157	"Fruits 13-20 mm long; persistent bark usually extending for more than half tree height"	"Corymbia erythrophloia"
157	"Fruits 9-15 mm long; persistent bark usually about half of tree height"	158
158	"Fruits ellipsoidal, 1.2-1.6 times longer than wide"	"Corymbia ellipsoidea"
158	"Fruits globose-truncate, 1.1-1.3 times longer than wide"	"Corymbia pocillum"
159	"Fruits 20-35 mm long"	160
159	"Fruits 6-20 mm long"	163
160	"Flower buds and fruits sessile"	"Corymbia abergiana"
160	"Flower buds and fruits with pedicels at least 3 mm long"	161
161	"Adult leaves concolorous, intramarginal vein absent"	"Corymbia terminalis"
161	"Adult leaves discolorous, intramarginal vein present"	162
162	"Pedicels 3-7 mm long"	"Corymbia hendersonii"
162	"Pedicels 8-18 mm long"	"Corymbia rhodops"
163	"Adult leaves concolorous"	"Corymbia erythrophloia"
163	"Adult leaves discolorous"	164
164	"Persistent bark yellowish-brown"	165
164	"Persistent bark grey, brown, or reddish-brown"	166
165	"Mature flower buds 3-5 mm long; fruits 6-10 mm long"	"Corymbia trachyphloia"
165	"Mature flower buds 7-8 mm long; fruits 16-18 mm long"	"Corymbia xanthope"
166	"Seeds without a wing; adult leaves 20-35 mm wide; juvenile leaves broadly lanceolate"	"Corymbia gummifera"
166	"Seeds with a terminal papery wing; adult leaves 10-25 mm wide; juvenile leaves linear to narrow-lanceolate"	167
167	"Fruits 10-14 mm long"	"Corymbia clandestina"
167	"Fruits 14-20 mm long"	168
168	"Adult leaves rather dull"	169
168	"Adult leaves shiny"	170
169	"Seedling leaves glabrous by node 10"	"Corymbia brachycarpa"
169	"Seedling leaves setose beyond node 10"	"Corymbia hylandii"
170	"Fruits 15-19 mm long, 11-15 mm wide"	"Corymbia lamprophylla"
170	"Fruits 12-16 mm long, 9-12 mm wide"	"Corymbia stockeri"
171	"Bark deciduous throughout or almost throughout"	172
171	"Persistent bark extending to at least one-third of tree height"	176
172	"Leaves on mature plant discolorous"	173
172	"Leaves on mature plant concolorous"	174
173	"Fruits cupular, with 5-6 locules; mallee; bark deciduous throughout, grey to silvery"	"Eucalyptus curtisii"
173	"Fruits globose, with 3 locules; tree; bark deciduous except near base of tree, green or greenish-grey"	"Corymbia torelliana"
174	"Adult leaves glossy green; operculum scar absent"	"Eucalyptus thozetiana"
174	"Adult leaves dull, grey or grey-green; operculum scar present"	175
175	"Pedicels 1-2 mm long; fruiting valves exserted; small tree up to 7 m high"	"Eucalyptus victrix"
175	"Pedicels 2-6 mm long; fruiting valves enclosed or at rim level; large tree 10-20 m high"	"Eucalyptus intertexta"
176	"Persistent bark fibrous"	177
176	"Persistent bark hard and deeply furrowed (ironbark) or scaly (“box”-type)"	187
177	"Adult leaves discolorous"	178
177	"Adult leaves concolorous"	182
178	"Outer bark grey"	179
178	"Outer bark brown, orangy-brown or rusty"	180
179	"The opposite sessile juvenile leaves linear, persistent on plants to c. 1 metre high; adult leaves dull bluish-green"	"Eucalyptus helidonica"
179	"The opposite sessile juvenile leaves ovate, persistent only on small plants < 20 cm high; adult leaves bright green"	"Eucalyptus acmenoides"
180	"Tall coastal tree; fruits obconical; stamens in four clusters, staminodes present"	"Eucalyptus microcorys"
180	"Small to medium trees away from the coast; fruits hemispherical to cupular; stamens evenly arranged, staminodes absent"	181
181	"Adult leaves grey-green; operculum conical; fruits 10-14 mm wide"	"Eucalyptus rubiginosa"
181	"Adult leaves green; operculum hemispherical; fruits 4-6 mm wide"	"Eucalyptus tenuipes"
182	"Disc of fruit with a flat broad (1-1.5 mm) annulus"	183
182	"Disc of fruit descending, rim of fruit very narrow"	184
183	"Juvenile leaves ovate to orbicular, 25-60 mm wide"	"Eucalyptus latisinensis"
183	"Juvenile leaves lanceolate, < 25 mm wide"	"Eucalyptus psammitica"
184	"Leaf canopy bluish-green in reflected sunlight"	"Eucalyptus carnea"
184	"Leaf canopy bright green in reflected sunlight"	185
185	"Fruits < 6 mm long, < 6 mm wide"	"Eucalyptus apothalassica"
185	"Fruits > 6 mm long and > 6 mm wide"	186
186	"Juvenile leaves ovate to orbicular, 25-60 mm wide"	"Eucalyptus portuensis"
186	"Juvenile leaves lanceolate, < 25 mm wide"	"Eucalyptus mediocris"
187	"Persistent bark scaly, or somewhat tessellated (boxes)"	188
187	"Persistent bark hard, furrowed, grey to black (ironbark)"	215
188	"Persistent bark extending for one-third to two-thirds tree/mallee height (‘half-barks’)"	189
188	"Persistent bark extending for more than two-thirds tree/mallee height"	199
189	"Fruits 1-4.5 mm long"	190
189	"Fruits 4.5-18 mm long"	193
190	"Adult leaves discolorous; fruiting valves strongly exserted"	"Eucalyptus raveretiana"
190	"Adult leaves concolorous; fruiting valves at rim level or below rim"	191
191	"Mallee; flowers with staminodes"	"Eucalyptus normantonensis"
191	"Trees; flowers with all stamens fertile"	192
192	"Adult leaves greyish-green, dull; operculum scar present; fruits without longitudinal ridges"	"Eucalyptus acroleuca"
192	"Adult leaves green, somewhat shiny; operculum scar absent; fruits with 1-3 longitudinal ridges"	"Eucalyptus woollsiana"
193	"Operculum scar present"	194
193	"Operculum scar absent"	196
194	"Fruits 8-10 mm long"	"Eucalyptus orgadophila"
194	"Fruits 4.5-8 mm long"	195
195	"Persistent bark black or dark brown; leaves green; fruits with whitish pellicle between valves and rim"	"Eucalyptus cambageana"
195	"Persistent bark grey; leaves grey-green; fruits without whitish pellicle"	"Eucalyptus intertexta"
196	"Operculum shorter than hypanthium; pedicels 7-12 mm long; staminodes present"	"Eucalyptus ochrophloia"
196	"Operculum same length as hypanthium; pedicels 0-7 mm long; staminodes absent"	197
197	"Flower buds, fruits and branchlets pruinose; fruits 8-13 mm long"	"Eucalyptus albens"
197	"Flower buds, fruits and branchlets not pruinose; fruits 3-7.5 mm long"	198
198	"Juvenile leaves broadly-ovate to almost orbicular, 1.4-2.8 times longer than broad; adult leaves 2.1-6 cm wide"	"Eucalyptus moluccana"
198	"Juvenile leaves ovate to broadly lanceolate, 2.5-5 times longer than broad; adult leaves 1.4-3.4 cm wide"	"Eucalyptus microcarpa"
199	"Persistent bark extending right up to the twigs"	200
199	"Outer branches (up to 7 cm diameter) smooth-barked"	208
200	"Adult leaves bright green"	201
200	"Adult leaves dull, grey-green to silvery-grey"	202
201	"Adult leaves discolorous; pedicels absent; fruits 2-2.5 mm long"	"Eucalyptus howittiana"
201	"Adult leaves concolorous; pedicels 1-5 mm long; fruits 4-8 mm long"	"Eucalyptus chlorophylla"
202	"Fruits 3-5 mm long"	203
202	"Fruits 5-11 mm long"	205
203	"Fruits thin-walled, crushable; pedicels 0-1 mm long"	"Eucalyptus microtheca"
203	"Fruits thick-walled, not crushable; pedicels 2-7 mm long"	204
204	"Fruiting valves exserted; juvenile leaves narrowly-ovate"	"Eucalyptus distans"
204	"Fruiting valves enclosed or at rim-level; juvenile leaves linear"	"Eucalyptus largiflorens"
205	"Fruits 9-11 mm long; mature flower buds 8-13 mm long"	"Eucalyptus leptophleba"
205	"Fruits 5-7 mm long; mature flower buds 5-7 mm long"	206
206	"Branchlets and flower buds pruinose; fruiting valves strongly exserted"	"Eucalyptus microneura"
206	"Branchlets and flower buds not pruinose; fruiting valves at rim level"	207
207	"Pedicels 1-2 mm long; fruits thin-walled, crushable"	"Eucalyptus tectifica"
207	"Pedicels 3-6 mm long; fruits thick-walled, not crushable"	"Eucalyptus leucophylla"
208	"Leaves glossy green"	209
208	"Leaves green, bluish-green or grey, but not glossy"	210
209	"Adult leaves 35-100 mm wide; fruits 3-4 mm long; mature flower buds 3-5 mm long"	"Eucalyptus populnea"
209	"Adult leaves 10-27 mm wide; fruits 2-2.5 mm long; mature flower buds 2.5-3 mm long"	"Eucalyptus brownii"
210	"Fruits obconical"	211
210	"Fruits cupular, ovoid-truncate or cylindrical"	212
211	"Adult leaves 26-41 mm wide; fruits 6.2-7.8 mm wide"	"Eucalyptus dalveenica"
211	"Adult leaves 15-24 mm wide; fruits 3.5-5 mm wide"	"Eucalyptus conica"
212	"Outer branches (up to 7 cm diameter) conspicuously smooth, white; tree of watercourses and floodplains"	"Eucalyptus coolabah"
212	"Outer branches (up to 2.5 cm diameter) inconspicuously smooth, grey to brown; trees of hilly terrain"	213
213	"Outer whorl of stamens without anthers"	"Eucalyptus provecta"
213	"Stamens all fertile"	214
214	"Outer operculum shed very early; fruits 4.5-5.5 x 4-4.5 mm"	"Eucalyptus tardecidens"
214	"Outer operculum retained until anthesis; fruits 3-4.5 x 3-3.5 mm"	"Eucalyptus persistens"
215	"Bark deciduous on outer branches (> 3 cm diameter)"	216
215	"Bark persistent throughout, or only small branches (< 1.5 cm diam) smooth-barked"	227
216	"Fruiting valves enclosed; fruits with a broad rim"	217
216	"Fruiting valves exserted or at rim level"	221
217	"Adult leaves dull, grey-green"	"Eucalyptus corynodes"
217	"Adult leaves somewhat glossy, green"	218
218	"Fruits 4-7 mm long"	219
218	"Fruits 7-15 mm long"	220
219	"Adult leaves 10-18 mm wide; mature flower buds 4-5 mm long"	"Eucalyptus sicilifolia"
219	"Adult leaves 18-28 mm wide; mature flower buds 6-7 mm long"	"Eucalyptus melanoleuca"
220	"Juvenile leaves linear to narrow-lanceolate, < 15 mm wide; fruits 6-11 mm wide"	"Eucalyptus suffulgens"
220	"Juvenile leaves lanceolate to ovate, 20-45 mm wide; fruits 5-7 mm wide"	"Eucalyptus dura"
221	"Adult leaves discolorous"	"Eucalyptus decolor"
221	"Adult leaves concolorous"	222
222	"Juvenile leaves ovate to orbicular"	223
222	"Juvenile leaves linear to lanceolate"	224
223	"Juvenile leaves ovate, < 10 cm long; operculum 0.8-1.5 times length of hypanthium"	"Eucalyptus tholiformis"
223	"Juvenile leaves orbicular, 10-20 cm long; operculum 2-3 times length of hypanthium"	"Eucalyptus fibrosa"
224	"Pedicels 0-3 mm long"	225
224	"Pedicels 3-8 mm long"	226
225	"Juvenile leaves grey-green, linear, 0.8-1.3 cm wide"	"Eucalyptus beaniana"
225	"Juvenile leaves green, lanceolate, 1.5-2.5 cm wide"	"Eucalyptus taurina"
226	"Fruits 6-7 mm wide; deciduous bark extending to branches 10-15 cm diameter"	"Eucalyptus decorticans"
226	"Fruits 8-10 mm wide; deciduous bark extending to branches 5-9 cm diameter"	"Eucalyptus rhombica"
227	"Flower buds and fruits with 4 obvious longitudinal ribs"	228
227	"Flower buds and fruits with 1-2 faint ribs, or ribs absent"	229
228	"Branchlets and flower buds pruinose; adult leaves 30-60 mm wide"	"Eucalyptus farinosa"
228	"Branchlets and flower buds not pruinose; adult leaves 15-22 mm wide"	"Eucalyptus quadricostata"
229	"Immature flower buds with operculum constricted at base (‘egg-in-eggcup’)"	230
229	"Immature flower buds without any constriction at base of operculum"	232
230	"Juvenile leaves pruinose"	"Eucalyptus paedoglauca"
230	"Juvenile leaves green to grey-green, not pruinose"	231
231	"Fruits 5-8 mm long, 5-8 mm wide; mature flower buds retaining constriction at base of operculum"	"Eucalyptus xanthoclada"
231	"Fruits 4-6 mm long, 4-5 mm wide; mature flower buds without constriction at base of operculum"	"Eucalyptus drepanophylla"
232	"Leaves lemon-scented; some or all leaf apices obtuse or retuse"	"Eucalyptus staigeriana"
232	"Leaves not lemon-scented; all leaf apices acute to acuminate"	233
233	"Outer whorl of stamens without anthers"	234
233	"All stamens with fertile anthers"	237
234	"Flower buds and branchlets pruinose; juvenile leaves orbicular"	"Eucalyptus caleyi"
234	"Flower buds and branchlets not pruinose; juvenile leaves lanceolate to narrowly ovate"	235
235	"Leaves green and glossy at all stages"	"Eucalyptus virens"
235	"Leaves dull at all stages"	236
236	"Fruits cupular, about as long as wide; small gnarled tree"	"Eucalyptus panda"
236	"Fruits ellipsoidal, longer than wide; tall forest tree"	"Eucalyptus fusiformis"
237	"Juvenile leaves linear to narrowly lanceolate, 7-20 times longer than broad"	238
237	"Juvenile leaves lanceolate to orbicular, 1-7 times longer than broad"	241
238	"Fruiting disc broad and convex"	"Eucalyptus cullenii"
238	"Fruiting disc narrow, descending"	239
239	"Adult leaves lacking intramarginal vein"	"Eucalyptus exilipes"
239	"Adult leaves with intramarginal vein"	240
240	"Juvenile leaves 2.5-6 mm wide; fruits 2.5-4 mm long"	"Eucalyptus elegans"
240	"Juvenile leaves 6-14 mm wide; fruits 4-7 mm long"	"Eucalyptus crebra"
241	"Adult leaves bright green, quite glossy; juvenile leaves subsessile"	"Eucalyptus granitica"
241	"Adult leaves blue-grey to green but not glossy; juvenile leaves distinctly petiolate"	242
242	"Juvenile leaves orbicular; operculum much longer than hypanthium"	"Eucalyptus fibrosa"
242	"Juvenile leaves lanceolate; operculum about same length as hypanthium"	243
243	"Operculum hemispherical"	"Eucalyptus atrata"
243	"Operculum conical"	244
244	"Branchlets pruinose; fruits typically ellipsoid-truncate; adult leaves 10-18 mm wide"	"Eucalyptus whitei"
244	"Branchlets not pruinose; fruits cupular to obconical; adult leaves 18-30 mm wide"	"Eucalyptus siderophloia"