1	"Style straight or curved but not uncinate [occasionally bent just below apex due to damage or wilting; check several flowers to be sure"	2
1	"Style uncinate (i.e. hooked)"	36
2	"Bracteoles persistent at anthesis and usually to late flower or to the fruiting stage"	3
2	"Bracteoles caducous or deciduous, mostly shed by anthesis"	8
3	"Stigma glabrous"	"Chamelaucium sp. Bunjil (M.E.Ballingall 1970)"
3	"Stigma with a circle of substigmatic hairs [note that the hairs may be hidden by an oily pollen globule on young styles]"	4
4	"Ovules 4. (Sepals 0.5–1.5 mm long.)"	5
4	"Ovules 5–8"	6
5	"Petioles 0–0.4 mm long. Blades 3–8 mm long. Hypanthium without foveolae. Sepals ciliate to fimbriate. Stigma peltate, c. 0.5 mm diam. (not including the hairs)"	"Chamelaucium sp. Mingenew (A.Carr 115)"
5	"Petioles 2–3 mm long. Blades 15–30 mm long. Hypanthium with 10 foveolae. Sepals ± entire. Stigma capitate, c. 0.2 mm diam. (not including the hairs)"	"Chamelaucium sp. Mukinbudin (M.Squire 007)"
6	"Leaves uncinate. Sepals 0.5–1.3 mm long, entire. Stigma peltate, 0.4–0.6 mm diam. (not including hairs)"	"Chamelaucium uncinatum"
6	"Leaves not uncinate. Sepals 2–3 mm long, denticulate or ciliolate. Stigma capitate, 0.2–0.3 mm diam. (not including hairs)"	7
7	"Petioles well defined. Blades 1.5–2.5 mm long. Hypanthium with 10 foveolae"	"Chamelaucium sp. Mt Heywood (K.Newbey 7954)"
7	"Petioles poorly defined. Blades 10–30 mm long. Hypanthium without foveolae"	"Chamelaucium virgatum"
8	"Leaves alternate"	9
8	"Leaves opposite"	10
9	"Leaves terete, 0.2–0.4 mm diam. Hypanthium with 10 foveolae. Sepals 0.6–1 mm long, entire. Ovules 4"	"Chamelaucium sp. Victoria (J.Coleby-Williams 99)"
9	"Leaves with distinct adaxial and abaxial surfaces, 0.5–1.9 mm wide. Hypanthium without foveolae. Sepals 1.2–3 mm long, ciliate or fimbriate. Ovules 5 or 6"	"Chamelaucium drummondii"
10	"Style 12–25 mm long at maturity"	11
10	"Style 1–10 mm long at maturity"	13
11	"Bracteoles umbo (dorsal point) absent or up to 0.1 mm long. Petals white, pink or red at anthesis. Stigma with a belt of substigmatic hairs"	"Chamelaucium sp. Koolyanobbing (V.Clarke 644)"
11	"Bracteoles umbo (dorsal point) 0.4–1.5 mm long. Petals red at anthesis. Stigma with a circle of substigmatic hairs"	12
12	"Prostrate shrub. Petals 3–4 mm long, entire. Style 12–18 mm long; stigma capitate, 0.15–0.2 mm diam."	"Chamelaucium repens"
12	"Erect shrub. Petals 4.5–6.5 mm long, ciliate. Style 17–25 mm long; stigma ± peltate, 0.35–0.4 mm diam."	"Chamelaucium erythrochlorum"
13	"Style glabrous and smooth or with a belt of hair-like papillae"	14
13	"Style with substigmatic hairs that may be acute, obtuse or clubbed"	16
14	"Shrub prostrate, layering. Petals red at anthesis. Style 2.5–3.5 mm long, with prominent, distally compressed, hair-like papillae in a belt c. 0.4 mm long"	"Chamelaucium sp. Wongan Hills (B.H.Smith 1140)"
14	"Shrub erect or spreading, not layering. Petals white at anthesis. Style glabrous, without a belt of papillae"	15
15	"Sepals ciliate or fimbriate. Ovules 4–6"	"Chamelaucium ciliatum"
15	"Sepals entire or denticulate. Ovules 6–8"	"Chamelaucium micranthum"
16	"Leaves with an apical point (0.1–)0.2–0.8 mm long or tapering at the apex"	17
16	"Leaves with 2 minute lateral points or with no point or with a mucro up to 0.1 mm long"	25
17	"Staminodes enlarged and somewhat cupped or branched at the apex. Occurring along the south coast"	18
17	"Staminodes not enlarged or branched at the apex. Occurring along the west coast and inland to the central wheatbelt"	20
18	"Sepals 0.8–1.3 mm long. Staminodes distinctly exceeding the stamens, the free part c. twice as long as free part of antipetalous filaments"	"Chamelaucium sp. Mt Maxwell (R.Davis RD 524)"
18	"Sepals 1.5–3 mm long. Staminodes similar in length to or shorter than the antipetalous filaments"	19
19	"Leaves 0.5–2 mm thick. Peduncles 1.5–3.5 mm long. Toolinna area"	"Chamelaucium axillare"
19	"Leaves 0.7–1.2(–1.5) mm thick. Peduncles 3.5–13 mm long"	"Chamelaucium axillare"
20	"Leaves with a whitish mucro 0.1–0.3 mm long. Sepals 2–3 mm long, ciliolate"	"Chamelaucium lullfitzii"
20	"Leaves with an apical point 0.2–0.8 mm long. Sepals 0.5–1.3 mm long, entire or minutely denticulate"	21
21	"Petals yellow or yellow-green. Substigmatic hairs in a thick, dense circle, distally compressed"	"Chamelaucium marchantii"
21	"Petals white, pink or red. Substigmatic hairs in a thin circle, distally acute or clubbed"	22
22	"Staminodes about as long as the antipetalous filaments. Ovules 4"	"Chamelaucium sp. Parker Range (B.H.Smith 1255)"
22	"Staminodes shorter than the antipetalous filaments. Ovules 6–10"	23
23	"Petals 3.5–7.5 mm long. Staminodes not much shorter than the antipetalous filaments. Stigma peltate, 0.4–0.6 mm diam. (not including hairs)"	"Chamelaucium uncinatum"
23	"Petals 1.5–3.5 mm long. Staminodes usually much shorter than the antipetalous filaments, if not then occurring south of Perth. Stigma capitate, 0.2–0.25 mm diam. (not including hairs)"	24
24	"Largest leaves 10–30 mm long, not uncinate. Bracteoles 4–6.5 mm long, including an umbo (dorsal point) 1.4–1.8 mm long. Petals red or white. Style 3–5 mm long; substigmatic hairs 0.3–0.7 mm long"	"Chamelaucium sp. Coolcalalya (A.H.Burbidge 4233)"
24	"Largest leaves 4–16 mm long, uncinate. Bracteoles 2–4 mm long, including an umbo (dorsal point) 0.1–0.5 mm long. Petals white. Style 2.5–3 mm long; substigmatic hairs 0.1–0.25 mm long"	"Chamelaucium sp. Winchester (C.Chapman s.n. PERTH 07879180)"
25	"Leaves bilaterally compressed, the adaxial surface deeply grooved (groove v-shaped in section); apex laterally 2-toothed or 2-pointed. Stigma peltate, 0.3–0.7 mm diam. Occurring near the south coast"	26
25	"Leaves either as wide or wider than thick or without a deep adaxial groove; apex varied, sometimes with a minute mucro. Stigma capitate, 0.1–0.3 mm diam. Widespread in south-western Australia"	29
26	"Ultimate branchlets pendulous. Hypanthium not ribbed; foveolae absent. Stigma markedly peltate, 0.5–0.7 mm diam."	"Chamelaucium xanthocladum"
26	"Branchlets erect or spreading (but peduncles pendulous in one species). Hypanthium 10-ribbed; foveolae 10.Stigma peltate, 0.3–0.55 mm diam."	27
27	"Peduncles recurved at maturity. Flowers pendulous, 3–4 mm diam. Ovules 4–8. Style 4.5–6.5 mm long"	"Chamelaucium forrestii"
27	"Peduncles straight or curved. Flowers erect or spreading, 7–10 mm diam. (when fully open). Ovules 7–10.Style 2–4 mm long"	28
28	"Leaves 1–1.3 mm thick. Peduncles 3–5 mm long. Bracteoles umbo (dorsal point) 1.5–2.5 mm long"	"Chamelaucium orarium"
28	"Leaves 0.5–1 mm thick. Peduncles 4–12 mm long. Bracteoles umbo (dorsal point) 0.2–1.3 mm long"	"Chamelaucium floriferum"
29	"Substigmatic hairs in a shortly or very shortly cylindrical belt 0.3–1 mm long. Bracteoles 5–10 mm long. Style 4.5–9 mm long at maturity"	30
29	"Substigmatic hairs in a ‘circle’ less than 0.3 mm long. Bracteoles 2.5–6 mm long. Style 3–6 mm long at maturity"	31
30	"Substigmatic hairs in a shortly cylindrical belt 0.5–1 mm long, acute. Petals 5–7.5 mm long, entire or denticulate"	"Chamelaucium megalopetalum"
30	"Substigmatic hairs in a very shortly cylindrical belt 0.3–0.4 mm long, distinctly clubbed. Petals 4–5 mm long, ciliolate"	"Chamelaucium sp. Merredin (G.J.Keighery & N.Gibson 6320)"
31	"Sepals entire. Petals deep pink at anthesis. Staminodes much shorter than the antipetalous filaments"	"Chamelaucium sp. Yuna (A.C.Burns 53)"
31	"Sepals denticulate or ciliolate to fimbriate. Petals white to medium pink at anthesis. Staminodes longer than to somewhat shorter than the antipetalous filaments"	32
32	"Peduncles 8–15 mm long. Petals pale to medium pink at anthesis"	"Chamelaucium sp. Yalgoo (Y.Chadwick 1816)"
32	"Peduncles 0.4–7 mm long. Petals white or pale pink at anthesis"	33
33	"Leaves tapering to a narrow apex; margins denticulate to ciliate. Hypanthium not ribbed"	"Chamelaucium confertiflorum"
33	"Leaves with a broad obtuse apex; margins entire or denticulate. Hypanthium longitudinally ribbed"	34
34	"Sepals 2–3 mm long. Foveolae absent. Staminodes longer than the antipetalous stamen filaments"	"Chamelaucium sp. Dryandra (D.Rose 446)"
34	"Sepals 0.7–1.75 mm long. Foveolae 10 or absent. Staminodes about as long as the antipetalous stamen filaments"	35
35	"Leaves mostly moderately to widely spaced along the stems. Flowers 6–10 mm diam."	"Chamelaucium pauciflorum"
35	"Leaves mostly densely arranged along the stems. Flowers 9–14 mm diam."	"Chamelaucium sp. Cape Riche (C.A.Gardner 2153)"
36	"Bracteoles persistent at anthesis and usually to late flower or to the fruiting stage, 4.5–7 mm long. Hypanthium not ribbed, with 10 foveolae"	"Chamelaucium brevifolium"
36	"Bracteoles caducous or deciduous, mostly shed by anthesis, 1.5–3.5 mm long. Hypanthium ribbed; foveolae absent or sometimes present"	37
37	"Petals yellow. Ovules 4.Style with a tuft of hairs on one side of the stigma"	"Chamelaucium sp. Warriedar (A.P.Brown & S.Patrick APB 1100)"
37	"Petals white. Ovules 6–9.Style with a circle of hairs surrounding the stigma"	38
38	"Leaf apex minutely bifid, obtuse or truncate. Petals entire. Sepals denticulate"	"Chamelaucium sp. Cataby (G.J.Keighery 11009)"
38	"Leaf apex acute or with an apical point up to 0.3 mm long. Petals denticulate to ciliate. Sepals ciliate. Winter-wet sites"	"Chamelaucium roycei"