A new and distinct variety of Chamelaucium uncinatum plant, named `Cascade Brook`, particularly charaterized by having an erect plant with numerous secondary stems which gracefully weep. Larger than normal flowers occur in summer and winter, with petals in a range of appealing, light to medium purple shades, and having dark purple nectaries.

BACKGROUND INFORMATION 
This invention relates to a new and distinct variety of Chamelaucium 
uncinatum which is referred to herein as the new variety "Cascade Brook". 
"Cascade Brook" was bred by breeders T P Angus and N F Derera, both of 244 
Singles Ridge Road, Winmalee, New South Wales, 2777, Australia. 
"Cascade Brook" resulted from a controlled pollination carried out on 10 
March 1988 between Chamelaucium uncinatum variety GW23 (seed parent) by 
Chamelaucium uncinatum variety GW8 (pollen parent). "Cascade Brook" was 
selected in March 1991 on the basis of flowering time, petal colour, 
nectary colour, flower size and plant habit. "Cascade Brook" was shown to 
be stable through two vegetatively propagated generations. The breeding 
and subsequent characterization of "Cascade Brook" were carried out at 
Winmalee, New South Wales, Australia. 
"Cascade Brook" is most notable for its predominance of mature petal colour 
R.H.S. No 75A, its large flower diameter (mean greater than 18 
millimeters), its biannual flowering habit (winter and summer) and its 
predominant mature nectary colour of R.H.S. No 187C. 
"Cascade Brook" has been vegetatively propagated by means of striking plant 
cuttings at the above-noted location, at Winmalee, New South Wales, 
Australia. Examination of various "Cascade Brook" plants has confirmed 
that the combination of characteristics described herein are firmly fixed 
throughout successive generations.

DESCRIPTION OF THE NEW VARIETY 
The following is a detailed description of the "Cascade Brook" with colour 
designations according to the Horticultural Colour Chart issued by the 
British Colour Council in collaboration with The Royal Horticultural 
Society Copyright 1938. The observed traits have been repeatedly observed 
and are believed to be characteristic of "Cascade Brook" which, in 
combination, distinguish "Cascade Brook" as a new and distinct cultivar. 
Locality: "Cascade Brook" was grown and observed at Newport Nurseries, 
Winmalee, New South Wales, Australia. 
Propagation: By cutting. 
Parentage: Controlled pollination of Chamelaucium uncinatum GW23 (seed 
parent) by Chamelaucium uncinatum GW8 (pollen parent). 
Growth habit: Erect plant habit with cascading or weeping new growth, 
particularly when grown under conditions such as 25.degree. C. to 
30.degree. C. day/15.degree. C. to 18.degree. C. night temperatures with 
high nutrition. 
Shape: When grown in a glasshouse with weekly nutrient supply the plants 
develop a spreading semi-erect habit with new growth weeping/hanging down 
from the more erect firm older growth. 
Size: When grown in 130 millimeter pots in a glasshouse with nutrients 
supplied weekly approximate dimension twelve months from rooted cutting 
are: 
Height.--60 to 75 centimeters. 
Width.--60 to 75 centimeters. 
Line growth: High branching frequency on main stem and side branch. Medium 
to high branching frequency on side branches. 
Foliage: Mature leaflets at branched node with length 40 to 55 centimeters; 
diameter of approximately 1 millimeter, opposite, linear, almost terete 
with spreading hooked apex, spreading to reflexed, and glabrous. Colour 
R.H.S. No 146A (yellow-green colour group). 
Flowers: Flowering is biannual with flowering between December to March 
(summer flowering) and July to September (winter flowering). 
Characteristics of flowering are as follows: 
Summer flowering.--Flower diameter: Mean about 18.4 millimeters. Mature 
petal colour: R.H.S. No 77C 84C. Mature nectary colour: R.H.S. No 183A 187 
AB. 
Winter flowering.--Flower diameter: Mean about 18.6 millimeters. Mature 
petal colour: R.H.S. No 75A. Mature nectary colour: 187C. 
Flower size is large compared to other Chamelaucium uncinatum. The petal 
outline is notched and the petal margin is undulate. The predominate 
floral tube outline is conical. 
In the northern hemisphere flowering results would generally be the 
reverse of that set out above. Summer flowering results would be observed 
between July to September and winter flowering results would be observed 
between December to March. 
Comparisons of summer and winter flowering based on twenty plants are set 
out in Table 1. 
TABLE 1 
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CHARACTERISTICS OF 
CHAMELAUCIUM UNCINATUM CASCADE BROOK 
CASCADE 
CASCADE BROOK 
BROOK 
Summer Flowering 
Winter Flowering 
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PLANT HABIT Cascading Cascading 
FLOWERING TIME 
December/January/ 
August/ 
(50% bud burst) 
February September 
BUD COLOUR 
With Operculum 
Colour Red Red 
RHS No 41A 42C 41A 42C 
Without Operculum 
Colour Purple Purple 
RHS No 77BC 77C 
FLORAL TUBE, 
MID-REGION 
Colour Green or yellow 
Yellow-green or 
green or red- red-purple 
purple 
RHS No 59B 143C 144A 59B 144A 
FLOWER 
DIAMETER (mm) 
Mean 18.6 20.8 
Range 17.8-19.6 19.1-22.0 
PETAL 
Outline Obovate Obovate 
Immature colour 
Colour Purple Purple 
RHS No 75C 77CD 75A 
Colour Development 
Fast Fast 
Mid-mature colour 
(% to 15 days after 
bud burst) 
Colour Purple or violet 
Purple or violet 
RHS no 75AB 84BC 75AC 84C 
Petal 
Mature Colour (ca 20 
days after bud burst) 
Colour Purple or violet 
Purple 
RHS No 77C 84C 75A 
NECTARY 
Immature colour 
Colour Green Yellow-green 
RHS No 141C 143AC 149B 
Mature colour 
Colour Greyed-purple Greyed-purple 
RHS No 183A 187AB 187C 
STAMINODIA 
Outline Narrow tri- NT 
angular (NT) 
Mature collar colour 
Colour White White 
RHS No 155D 155D 
STYLE COLOUR 
Immature colour 
Colour Red-purple or white 
White 
RHS No 64D 70C 155D 155D 
Mid-mature colour 
Colour Red-purple or white 
White 
RHS No 64D 70C 155D 155D 
Mature colour 
Colour White White 
RHS No 155D 155D 
CALYX LOBE 
Mid-mature colour 
Colour Red-purple Red-purple 
RHS No 62D 65C 73D 65C 73D 
Mature colour 
Colour Purple Purple 
RHS No 76D 76D 
FLORAL TUBE 
Outline Conical Conical 
Fluting Present Present 
Diameter (mm) 
Mean 8.45 9.2 
Range 7.9-9.0 8.7-9.8 
Mid-point colour 
Colour Yellow-green Yellow-green 
or green 
RHS No 143C 144BC 145A 
144C 
FLOWER Broad distal (BD) 
BD 
ARRANGEMENT 
FLOWER Present Present 
FRAGRANCE 
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The characteristics of "Cascade Brook" were compared with the closest 
known Chamelaucium uncinatum variety "Pink". Observations were made during 
the winter of 1992 and summer of 1992/1993 from ten plants of each of 
"Cascade Brook" and "Pink". The plants were selected at random in June 
1992 from twelve months old plants grown in a glasshouse at Winmalee, New 
South Wales, Australia. Results are set out in Table 2. 
TABLE 2 
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DRAFT COMISON TABLE 
CASCADE 
"PINK" BROOK 
CHARACTER GW24 GW53 
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FLOWERING TIME 
Medium Early and medium 
July to September 
January to March 
July to September 
FLOWERING 
DIAMETER (MM) 
Mean 18.1 18.4 
Std deviation 
0.953 0.872 
No measured 20 20 
PETAL COLOUR 
Immature 75 with margins of 
75A with margins of 
155D 155D 
Mature 75A with margins of 
75A with margins of 
155D 72C 
NECTARY 
COLOUR 
Immature 149B 149B 
Mature 186B 187C 
FLOWER Broad distal Broad distal 
ARRANGEMENT 
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