Mandelvilla plant with double flower

Details Mandelvilla plant with double flower Mandelvilla plant with double flower

1998-08-20

2001-10-09

Hutzell, Paula (Department: 1649)

Multicellular living organisms and unmodified parts thereof and

Plant, seedling, plant seed, or plant part, per se

Higher plant, seedling, plant seed, or plant part

C800S298000, C800S260000

Reexamination Certificate

active

06300547

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to a new variety of Mandevilla plant with a double flower.
BACKGROUND OF THE INVENTION
Mandevillas are woody, evergreen, vine-like climbing shrubs with funnel-shaped or trumpet-shaped flowers that grow in temperate climates. Common varieties of Mandevilla include
Mandevilla X amabilis
(‘Alice du Pont’) which exhibits red to red-purple, trumpet-like flowers;
Mandevilla sanderi
(‘Red Riding Hood’) which exhibits rose-pink, funnel-shaped blooms;
Mandevilla X amabilis
Summer Snow™ (‘Monte’), U.S. Pat. No. 10,329, which exhibits pure white flowers which may become tinged with a pinkish blush; and
Mandevilla suaveolens
(
Mandevilla laxa
) which exhibits white to ivory trumpet shaped flowers. Mandevilla is native from Mexico to Argentina, and over 100 separate species of Mandevilla have been classified.
A Mandevilla generally has the following characteristics. Leaves are opposite or verticillate. Flowers are funnel-form, displayed in axillary or terminal racemes, the calyx is five-parted with scales at the base inside, the corolla is five-parted, the stamens have very short filaments and anthers and unite and adhere to the stigma, there is a dish of two to five lobes or scales and there are two ovaries with many ovules in each. The fruit consists of two terete follicles with the seeds having a tuft of hairs at the apex.
Mandevillas are popular garden and greenhouse plants, growing well in full sun and partial shade in temperate areas, providing year-round foliage and decorative blooms.
The presently known Mandevillas possess single funnel shaped flowers and it is believed that none of the presently known species or varieties possess double flowers, except the new variety ‘Monite’.
It would be commercially desirable to produce a Mandevilla that has double flowers and which, therefore, have enhanced decorative qualities compared to currently available Mandevilla plants.
SUMMARY OF THE INVENTION
The present invention is a Mandevilla plant (referred to hereafter as “Double Mandevilla”) that is different from previous Mandevilla plants in that it possesses double flowers. Particularly, Double Mandevilla plants possess both an outer corolla of petals and a generally concentric inner ring of petaloids (converted stamens). Due to the conversion of stamens to petaloids, it is likely that reproductive structures will be sterile. Double Mandevilla plants are useful as woody vines that produce decorative double blossoms. The double flowers of Double Mandevilla plants enhance appearance and make the plants especially marketable, and therefore, useful.
The present invention encompasses whole plant specimens and parts of Double Mandevilla plants including seeds, pollen, cut flowers, blooms, meristem tissue, cultured cells, rootstock, tissue that is propagatable by sexual or asexual methods, and also grafted shrubs that include Double Mandevilla rootstock or shrub or stems or parts thereof and plants that are “essentially derived” from Double Mandevilla plants.
The present invention also includes methods of producing double-flowering Mandevilla plants by sexual propagation of any non-sterile Double Mandevilla plants, whether by self-crossing Double Mandevilla or by crossing Double Mandevilla with another Mandevilla plant or other plant. The present invention also includes Mandevilla plants that are produced by such methods.
The present invention also includes methods of producing Double Mandevilla plants by asexual methods such as by cutting and somatic cell culture.
The present invention also includes the new and distinct specific variety of Double Mandevilla plant called ‘Rita Marie Green’. The present invention includes whole plants of Rita Marie Green as well as parts of this variety including any seeds, any pollen, cut flowers, blooms, meristem tissue, cultured cells, rootstock, and any tissue propagatable by sexual or asexual methods, and grafted shrubs that include Rita Marie Green rootstock or shrubs or stems or parts thereof that are “essentially derived” from Rita Marie Green.
The present invention also includes methods of producing Rita Marie Green by propagation.
The present invention also includes methods of producing Rita Marie Green by asexual methods such as by cutting or by somatic cell culture.
The foregoing and other features and advantages of the invention will become more apparent from the following detailed description and accompanying photographs and figures.


REFERENCES:
patent: 5744693 (1998-04-01), Meyerowitz et al.
Huxley [Ed.] The New Royal Horticultual Society Dictionary of Gardening. The Macmillian Press Limited, London. p. 187, 1992.*
Weigel et al. The ABCs of Floral Homotic Genes. Cell. vol. 78, pp. 203-209, 1994.*
Color photographer of MandeVilla plant ‘Monite’ (1 page).
Letter bearing a date of Aug. 22, 1996 from Mike C. Green (11 pages).
Memo entitled MN-AZUSA dated Sep. 4, 1996 (3 pages).
J. Mitchell Green letter bearing the notation Jun. 21, 1997 (wrote) mailed Jul. 1, 1997 (8 pages).
Letter from Monrovia to Mitchell Green bearing facsimile notation of Aug. 21, 1997 (1 page).

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