Crape-myrtle named Summer Dream
The subject of the present disclosure is a new and distinct variety of crape-myrtle, named `Summer Dream`, which is characterized by its strong purplish pink blooms having white marginal variegation and its dwarf habit. The new variety is hearty, well-branched and produces a heavy quantity of blooms.
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The present invention relates to a new and distinct variety of crape-myrtle, the variety being primarily characterized by strong purplish pink blooms having white marginal variegation.
The variety is further characterized by:
Flat-spreading performance having a (hill spread)/(height) ratio of about 2.0, disc-shaped form, dwarf habit (about 30 cm height), heavy branching habit and an extremely numerous amount of blooms.
The new crape-myrtle variety originated in 1985 as a seedling resulting from my crossing of a pair of crape-myrtle plants. The seed parent was `Summer And Summer`, Lagerstroemia indica L., which was bred at a research farm in Uchino-cho, Niigata-shi, Niigata-ken, Japan, and the pollen parent was `Issai-Sarusuberi`, Lagerstroemia indica L. This crossing was done at the same research farm as described above in 1984 with the object of producing plants having flowers of different colors from the seed parent, `Summer And Summer.` The seed parent, `Summer And Summer` has been registered under No. 1733 on Aug. 18, 1988, under the Japanese Seed and Seedlings Law. The pollen parent, `Issai-Sarusuberi` is a well-known and popular crape-myrtle plant and is under no protection, such as a patent or plant variety protection certificate. In 1986, the asexual reproduction of this selected seedling was done by me and under my direction at the same research farm by green shoot cutting. Then, observations were made for 2-4 years of grown plants during 1987-1989. The continuous asexual propagation has demonstrated that the novel characteristics would hold true from generation to generation, appear to be firmly fixed, and are transmitted without change through succeeding propagations.
The new crape-myrtle variety differs from its seed parent and pollen parent in the following ways.
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New Variety
Seed Parent
Pollen Parent
Summer Summer And Issai-
Dream Summer Sarusuberi
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Tree-Performance
flat-spreading
flat-spreading
upright
(hill spread)/(tree
2.0 3.0 0.43
height) ratio
Tree form disc disc obovoid
Tree height (cm)
dwarf (31.6)
dwarf (20.0)
shrub (130.0)
Branching Habit
heavy medium sparse
(number of branches
9.8 5.8 4.4
on a main trunk)
Number of inflores-
numerous medium little
cences per one
9.0 5.0 3.5
cluster
Number of flowers
numerous medium little
per one 39.4 32.0 26.0
inflorescence
Petal color strong strong vivid red
purplish pink
purplish pink
purple JHS
(JHS JHS Color Color Chart
Color Chart
Chart 9205 or
9507 or RHS
9505) with RHS Colour Colour Chart
white Chart 68A, 71B
marginal 68B, 73A 71B
variegation
or RHS
Colour Chart
61D, 66C
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The new crape-myrtle variety may be reproduced with ease by stem cuttings. Just after root taking, young shoots come out and spread as growth proceeds. The variety becomes to show full flat-spreading in tree performance and disc shape in tree form, before appearance of flower buds. The tree height of an adult tree is about 30 cm and the hill spread is about 2.0 times the tree height.
The variety shows heavy branching habit and bears numerous flowers and buds. The blooming period of the variety is long, from July to October in Niigata-shi, Niigata-ken, Japan and in similar climate elsewhere. The variety also shows a good cold hardiness and can overwinter well without being supported with a pole even in a snowy area.
BRIEF DESCRIPTION OF THE DRAWINGSThe accompanying drawings show typical specimens of the new variety in color as nearly true as is reasonably possible to make the same in color illustrations of this character. In each instance, the photographs were taken at the same research farm noted previously in Aug., 1989.
FIG. 1 is a complete view of the new variety together with a scale wherein the dwarf habit of the new variety is apparent.
FIG. 2 is a close view of a blooming peduncle showing the characteristics of the flower and bud.
DETAILED DESCRIPTION OF THE NEW PLANTThe following is a detailed description of the characteristics of the new variety as observed at the same research farm described above. Color designations are made by reference to JHS Color Chart (Japan Horticultural Scale), or R.H.S. Colour Chart (Royal Horticultural Society) except where common terms of color definition are employed.
Plant:
Tree performance.--Flat-spreading with a (hill spread)/(tree height) ratio of about 2.0.
Tree form.--Disc type.
Tree height.--Dwarf, about 30 to 35 cm in adult trees.
Stem:
Type of trunk.--Bush.
Trunk color.--Purplish brown.
Young bud.--Brown in color.
Branches.--Color: Reddish brown. Thickness: 4.1 mm (ave. of 50 shoots). Appearance of branch edge: Obvious. Branching habit: Heavy, about 8.9 branches in average on a main trunk. Internode Length: Short, about 1 to 2 cm.
Foliage:
Average leaf length.--About 7.0 cm.
Average leaf width.--About 3.5 cm.
Leaflets (lamina).--Broad lanceolate-shaped.
Top of leaflets.--Acute-shaped (94.5.degree.).
Base of leaflets.--Acute-shaped.
Margin.--Entire.
Wave of leaflets.--None.
Thickness of leaflets.--0.4 mm (ave. of 50 leaflets)
Color of immature leaflets.--Vivid yellow green (JHS Color Chart 3506) or (R.H.S. Colour Chart 144B).
Color of mature leaflets.--Upper side is dark green (JHS Color Chart 3716) or R.H.S. Colour Chart 137A, 137B, 147A, under side is dull yellow green (JHS Color Chart 3514) or R.H.S. Colour Chart 146B, 147B, 148B.
Mottling.--None.
Color change.--Red.
Luster.--Weakly-glossy finish.
Hair.--None on both the upper surface and the under surface.
Petiole.--Pale green in color. Petiole length: 1.1 to 1.2 mm.
Flower:
Pedicel.--4.5 to 5.5 mm.
Appearance of calyz tube edge.--Developed.
Bud.--Trapezoidal.
Cluster.--Conic-shaped, upward, broad and long.
Inflorescence.--Numerous, 9.0 on average per one cluster.
Semiinflorescence.--3 to 7 per the lowest inflorescence.
Number of flowers.--39.4 on average per one inflorescence.
Shape or form.--Single, six petals.
Fragrance.--Present, slight.
Petals:
Color.--Strong purplish pink (JHS Color Chart 9505) or (R.H.S. Colour Chart 61D, 66C) with white marginal variegation and slight fading in tone.
Shape.--Orbiculate with strong wave.
Petal base.--Strong purplish pink (JHS Color Chart 9505) or (R.H.S. Colour Chart 61D, 66C) and the length of the claw is 8 to 9 mm.
Reproductive organs:
Style.--Pale red.
Pistil.--One.
Filaments.--Pale pink.
Anthers.--Yellow.
Stamens.--30 to 35 arranged around the pistil.
Fruit:
Shape.--Ellipsoid, 10 mm. in length (ave. of 50 fruits) and 8.3 mm in width, being rotundate on the base and top.
Color.--Green in immaturity, and changes to Dark purple in maturity.
Growth:
Habit.--Dwarf, 30 to 35 cm height.
First foliage appears.--April.
Blooming term.--July to October.
Days for bearing flowers.--About 100.
Defoliation.--November.
Cold hardiness.--High.
Heat tolerance.--High.
Disease resistance.--High.
Pest resistance.--High.
Species designation: `Summer Dream` is designated as Lagerstroemia indicia L. hybrid.
The present new variety can survive at a temperature as low as -15.degree. C. and is resistant to Cercospora lythracearum Heald et Wolf, generally known as leaf blight.
The following additional descriptive botanical information is also provided:
Bloom diameter: 4.5 to 5.3 cm.
Petal size (width): 1.5 to 1.8 cm.
Persistance of individual blooms: One day from blooming. On the second day after blooming, the flower color begins to face gradually.
Fertile seeds: Are observed.
i) Seed color.--Dark-grayish brown (JHS Color Chart 1619) or (R.H.S. Colour Chart 200C)
ii) Samara.--Seed winged at the top.
iii) Seed size.--Length: 6.4 mm. (avg. of 50 seeds). Width: 2.9 mm. (avg. of 50 seeds).
iv) Number of seeds per fruit.--24 (avg. of 50 fruits).
Tree width: 63.2 cm. (avg. value of 50 plants).
As will be apparent to those skilled in horticultural science, the new variety as herein described may vary in slight detail due to climate, soil and cultural conditions under which the variety may be grown and the stage of growth.
Claims
1. A new and distinct variety of crape-myrtle plant, substantially as herein described and illustrated.
Type: Grant
Filed: May 25, 1990
Date of Patent: Sep 8, 1992
Assignee: Hokuetsu Nohji Co., Ltd. (Niigata)
Inventor: Kiyoshi Katsuo (Bunsui)
Primary Examiner: Howard J. Locker
Law Firm: Oblon, Spivak, McClelland, Maier & Neustadt
Application Number: 7/528,352
International Classification: A01H 500;
