USPP8395P - Ajuga reptans variety named `Arctic Fox` - Google Patents
Ajuga reptans variety named `Arctic Fox` Download PDFInfo
- Publication number
- USPP8395P USPP8395P US07/908,980 US90898092V US8395P US PP8395 P USPP8395 P US PP8395P US 90898092 V US90898092 V US 90898092V US 8395 P US8395 P US 8395P
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- United States
- Prior art keywords
- green
- variety
- ajuga reptans
- ajuga
- white
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 241001519274 Ajuga reptans Species 0.000 title claims abstract description 23
- 230000035772 mutation Effects 0.000 abstract description 3
- 238000007688 edging Methods 0.000 abstract 2
- 241001519271 Ajuga Species 0.000 abstract 1
- 230000001419 dependent effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 241000196324 Embryophyta Species 0.000 description 14
- 210000004027 cell Anatomy 0.000 description 8
- 230000007613 environmental effect Effects 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 241000894007 species Species 0.000 description 3
- 241001164374 Calyx Species 0.000 description 2
- 239000006071 cream Substances 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 229930002875 chlorophyll Natural products 0.000 description 1
- 235000019804 chlorophyll Nutrition 0.000 description 1
- ATNHDLDRLWWWCB-AENOIHSZSA-M chlorophyll a Chemical compound C1([C@@H](C(=O)OC)C(=O)C2=C3C)=C2N2C3=CC(C(CC)=C3C)=[N+]4C3=CC3=C(C=C)C(C)=C5N3[Mg-2]42[N+]2=C1[C@@H](CCC(=O)OC\C=C(/C)CCC[C@H](C)CCC[C@H](C)CCCC(C)C)[C@H](C)C2=C5 ATNHDLDRLWWWCB-AENOIHSZSA-M 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000003037 histogenic effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000442 meristematic effect Effects 0.000 description 1
- 210000000473 mesophyll cell Anatomy 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
- A01H5/00—Angiosperms, i.e. flowering plants, characterised by their plant parts; Angiosperms characterised otherwise than by their botanic taxonomy
- A01H5/02—Flowers
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
- A01H6/00—Angiosperms, i.e. flowering plants, characterised by their botanic taxonomy
- A01H6/50—Lamiaceae, e.g. lavender, mint or chia
Definitions
- the present invention relates to a new and distinct variety (clone) of normal size; of Ajuga reptans, which was originated by me (at the Gardenview Horticultural Park in Strongsville, Ohio) from a spontaneous mutation which appeared as a sport on a plant of Ajuga reptans Variety ⁇ Silver Queen ⁇ .
- the variety ⁇ Silver Queen ⁇ itself originated as a mutation from the green-leaved wild type of Ajuga reptans.
- the new variety viz., Ajuga reptans Variety ⁇ Arctic Fox ⁇ exhibits conspicuously variegated foliage leaves of a unique coloration which has never been observed or described before, I separated the tiny bit of sport from its parent plant and isolated it to be grown on separately. As new growth appeared; I removed any portion which did not exhibit the unique foliage coloration for which I had selected, and during constant culling over a period of five years; the plant was slowly transformed so that the entire plant showed the desired varigation.
- the major central portion of the leaf varies from white to various shades of creamy white . . . depending upon environmental conditions; except for the dark green marinal portions.
- the width of the green marginal portions varies, both between different leaves, as well as within each individual leaf.
- the margin may vary from no green at all, to a hairline of green to having a width equal to one quarter of the entire lamina, at the same transverse level of the lamina.
- a salient feature of the new variety is that, on those laminae of foliage leaves which develop during cool periods of the growing season; the median-longitudinal sector of the lamina, in adaxial view, appears silvery-green in color. This median-longitudinal sector may vary in diameter, both between foliage leaves and within a single foliage leaf. Also, within one leaf, the outline of this sector may appear irregular and asymmerical.
- the laminae of the foliage leaves, developing during periods of hot periods of the growing season; this silvery-green color is usually absent or greatly reduced and, instead, the median-longitudinal region of lamina, in adaxial view; appears white or cream-colored; as described above.
- the top figure of the drawing shows complete, potted specimen in perspective, with inflorescence typical of the species.
- the bottom figure taken in a plan view of a specimen in a younger stage, shows the characteristic, haphazard forms of leaf variegation and lamination displayed by the plant.
- the petioles of the foliage leaves are winged and substantially variable in color. Depending upon environmental conditions and perhaps other factors . . . an entire petiole, in adaxial view, may be white or cream-colored, or it may be variegated to varying degrees, e.g. being cream-colored along the median and dark green along each margin. In addition, the petiole, in adaxial view, may exhibit various degrees of purple shading, again depending upon environmental conditions.
- Ajuga reptans Variety ⁇ Arctic Fox ⁇ even from the parental variety, viz. Ajuga reptans variety ⁇ Silver Queen ⁇ , which has silvery-green foliage with only a few white, or creamy spots scattered over the leaf.
- the leaves compromise, predominantly, three primary colors . . . each varying as to shade and intensity from leaf to leaf and even within the same leaf . . . usually a deep avacodo green (similar to Pantone 3308c,), which generally extends inwardly from the margins of the leaves to varying degrees . . . a white, or creamy white irregular zone between the outer zone and central zone; and a light silvery-greyish green (similar to Pantone Cool Grey 3-c) color which usually is expressed in central portions of those leaves which develop during cool periods of the growing season.
- a deep avacodo green similar to Pantone 3308c,
- a light silvery-greyish green similar to Pantone Cool Grey 3-c
- the patterns formed are characteristically different from leaf to leaf and are thought to derive from two or more genetically distinct histogenic regions of the leaf forming meristem, and are thought to represent a periclinal type of chimera.
- the leaf cells formed from each region differ in chlorophyll content; resulting in differences in coloration and growth rate. Due to differences in speed of growth, the tissue formed by each respective region will develop into varied patterns relative to one another, giving different expressions in leaf mesophyll layers and the pallisade cell layer. This results in different patterns, determined by the area of each layer occupied by cells of each genotype. Where one or more layers of cells of silver or white overlay a layer of green cells, intermediate colors are displayed at the leaf surface and the leaf takes on a laminated appearance.
- mesophyll cells may develop from a different meristematic region; one, two or more layers of silver or white colored cells may mask the green of underlying cells of a lower cell layer, and the lamination may look several layers deep and result in two or more intermediate colors of different shades.
- Ajuga reptans Variety ⁇ Arctic Fox ⁇ has such a large proportion of white in its makeup; one would expect that it would grow more slowly than the green type but this has not been the case.
- the rate of growth is almost exactly the same as its parent Ajuga reptans Variety ⁇ Silver Queen ⁇ and even the wild green type Ajuga reptans.
- Ajuga reptans Variety ⁇ Arctic Fox ⁇ . . . at least in the northern Ohio area has grown equally well in sunny areas as in shady areas although, in areas of more sun, the plant tends to be lower growing and more compact than in shady areas where it is somewhat taller and looser growing. It is normally, and usually a lot mat of foliage borne flat on the ground.
- Ajuga reptans Variety ⁇ Arctic Fox ⁇ vegetatively . . . by division . . . at the Gardenview Horticultural Park in Strongsville, Ohio, of which I am the Founder and Director.
- the resulting plants have been true to type except for the natural variation caused by environmental conditions and the different rates of growth between the green and non-green portions of the plant; as described above.
- Ajuga reptans Variety ⁇ Arctic Fox ⁇ has been custom-propagated for me by tissue culture at the Briggs Nursery in Oregon (which produces 950 plants) and has come substantially true to type but this does not mean that it can just be planted out and ignored. If that is done, it will revert to plain green in just a year or two. With careful culling, the unique variagation can be easily maintained.
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physiology (AREA)
- Botany (AREA)
- Developmental Biology & Embryology (AREA)
- Environmental Sciences (AREA)
- Natural Medicines & Medicinal Plants (AREA)
- Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
Abstract
Ajuga reptans mutation, named Ajuga reptans Variety `Arctic Fox` which is of an absolutely unique coloration never before reported or described in Ajuga. It has leaves which are predominantly white or creamy-white; edged with a deep avacodo-green edging of varying width . . . with the green edging being ruffled, the degree of ruffling dependent upon the width of the green margin. Additionally . . . during cool periods of the year, the center of the leaf carries a mottled portion of silver-grey of varying size, lending an added enhancement to the already spectacular foliage effect.
Description
The present invention relates to a new and distinct variety (clone) of normal size; of Ajuga reptans, which was originated by me (at the Gardenview Horticultural Park in Strongsville, Ohio) from a spontaneous mutation which appeared as a sport on a plant of Ajuga reptans Variety `Silver Queen`. The variety `Silver Queen` itself originated as a mutation from the green-leaved wild type of Ajuga reptans.
The new variety, viz., Ajuga reptans Variety `Arctic Fox` exhibits conspicuously variegated foliage leaves of a unique coloration which has never been observed or described before, I separated the tiny bit of sport from its parent plant and isolated it to be grown on separately. As new growth appeared; I removed any portion which did not exhibit the unique foliage coloration for which I had selected, and during constant culling over a period of five years; the plant was slowly transformed so that the entire plant showed the desired varigation. The major central portion of the leaf varies from white to various shades of creamy white . . . depending upon environmental conditions; except for the dark green marinal portions. The width of the green marginal portions varies, both between different leaves, as well as within each individual leaf. The margin may vary from no green at all, to a hairline of green to having a width equal to one quarter of the entire lamina, at the same transverse level of the lamina. In addition, a salient feature of the new variety is that, on those laminae of foliage leaves which develop during cool periods of the growing season; the median-longitudinal sector of the lamina, in adaxial view, appears silvery-green in color. This median-longitudinal sector may vary in diameter, both between foliage leaves and within a single foliage leaf. Also, within one leaf, the outline of this sector may appear irregular and asymmerical. In contrast, the laminae of the foliage leaves, developing during periods of hot periods of the growing season; this silvery-green color is usually absent or greatly reduced and, instead, the median-longitudinal region of lamina, in adaxial view; appears white or cream-colored; as described above.
The top figure of the drawing shows complete, potted specimen in perspective, with inflorescence typical of the species.
The bottom figure, taken in a plan view of a specimen in a younger stage, shows the characteristic, haphazard forms of leaf variegation and lamination displayed by the plant.
On this variety of Ajuga reptans . . . as with the type species itself; the mature portions of stems exhibit a purple coloration, although the intensity and shade of the purple coloration is variable, varying from light purple to dark purple.
The petioles of the foliage leaves are winged and substantially variable in color. Depending upon environmental conditions and perhaps other factors . . . an entire petiole, in adaxial view, may be white or cream-colored, or it may be variegated to varying degrees, e.g. being cream-colored along the median and dark green along each margin. In addition, the petiole, in adaxial view, may exhibit various degrees of purple shading, again depending upon environmental conditions.
To date, flowering has been very sparse in my material with only three floweing spikes having been produced, which were not more than six inches in height . . . possibly because I have divided the plants intensively to increase my stock of plants. In the spikes that have been produced, over a five-year period; at least some of the flowers appeared variegated, i.e.: their corolas . . . in adaxial view . . . exhibiting patters like those described for the laminae of the foliage leaves. On many bracts, in adaxial view; the entire laminate appears cream-colored, except for the dark green marginal portions. Inflorescence of this plant is substantially like that of the species.
My new variety clearly differs from all other previously known varieties of Ajuga reptans because of the massive proportion of white or cream color within the foliage. No previously reported variety exhibits nearly this much white or cream color or this degree of type of variegation. It should be emphasized that these differences clearly distinguish Ajuga reptans Variety `Arctic Fox`, even from the parental variety, viz. Ajuga reptans variety `Silver Queen`, which has silvery-green foliage with only a few white, or creamy spots scattered over the leaf.
The leaves compromise, predominantly, three primary colors . . . each varying as to shade and intensity from leaf to leaf and even within the same leaf . . . usually a deep avacodo green (similar to Pantone 3308c,), which generally extends inwardly from the margins of the leaves to varying degrees . . . a white, or creamy white irregular zone between the outer zone and central zone; and a light silvery-greyish green (similar to Pantone Cool Grey 3-c) color which usually is expressed in central portions of those leaves which develop during cool periods of the growing season. The patterns formed are characteristically different from leaf to leaf and are thought to derive from two or more genetically distinct histogenic regions of the leaf forming meristem, and are thought to represent a periclinal type of chimera. The leaf cells formed from each region differ in chlorophyll content; resulting in differences in coloration and growth rate. Due to differences in speed of growth, the tissue formed by each respective region will develop into varied patterns relative to one another, giving different expressions in leaf mesophyll layers and the pallisade cell layer. This results in different patterns, determined by the area of each layer occupied by cells of each genotype. Where one or more layers of cells of silver or white overlay a layer of green cells, intermediate colors are displayed at the leaf surface and the leaf takes on a laminated appearance. Because more than one layer of mesophyll cells may develop from a different meristematic region; one, two or more layers of silver or white colored cells may mask the green of underlying cells of a lower cell layer, and the lamination may look several layers deep and result in two or more intermediate colors of different shades.
Although Ajuga reptans Variety `Arctic Fox` has such a large proportion of white in its makeup; one would expect that it would grow more slowly than the green type but this has not been the case. The rate of growth is almost exactly the same as its parent Ajuga reptans Variety `Silver Queen` and even the wild green type Ajuga reptans. Ajuga reptans Variety `Arctic Fox` . . . at least in the northern Ohio area has grown equally well in sunny areas as in shady areas although, in areas of more sun, the plant tends to be lower growing and more compact than in shady areas where it is somewhat taller and looser growing. It is normally, and usually a lot mat of foliage borne flat on the ground.
In the northern Ohio Area, Ajuga reptans Variety `Arctic Fox` has been practically deciduous with the foliage dying back almost to the central crown of the plant, usually about mid-December. It begins to grow sometime in March and usually blooms sometime in May. To date, no seeds have been produced although . . . since it has only produced three flower spikes to date, that does not necessarily mean that it is sterile. Plants carried over winter in a warm greenhouse have been evergreen, suggesting that . . . in milder climates . . . it will be evergreen.
Ajuga reptans Variety `Arctic Fox` has not exhibited any disease or insect damage to date.
Except for the unique coloration described above: Ajuga reptans Variety `Arctic Fox` is botanically identical with the wild type Ajuga reptans which is described as follows A. reptans Rhizomatous perennial with long stolons; stems 10-40 cm, pubescent on opposite faces, alternating at each node, sometimes glabrous at the base. Lower leaves 25-90×10-40 mm, ovate, entire or crenate. Bracts ovate, often tinged with blue, the upper shorter than the flowers. Vertillasters crowded, usually 6-flowered. Calyx 14-1;7 mm blue, rarely pink or white; tube exceeding calyx; upper lip entire. Stamens exserted; filaments hairy, 2n=32.
I have propagated Ajuga reptans Variety `Arctic Fox` vegetatively . . . by division . . . at the Gardenview Horticultural Park in Strongsville, Ohio, of which I am the Founder and Director. The resulting plants have been true to type except for the natural variation caused by environmental conditions and the different rates of growth between the green and non-green portions of the plant; as described above. Ajuga reptans Variety `Arctic Fox` has been custom-propagated for me by tissue culture at the Briggs Nursery in Oregon (which produces 950 plants) and has come substantially true to type but this does not mean that it can just be planted out and ignored. If that is done, it will revert to plain green in just a year or two. With careful culling, the unique variagation can be easily maintained.
As a positive means of identification, pressed Herbarium specimens are being prepared and . . . along with colored photographs; will be deposited with the Herbarium at Cleveland State University, with the Bailey Hortorium and with the Royal Botanic Gardens-Kew.
Claims (1)
1. A new and distinct variety of Ajuga reptan named `Arctic Fox` substantially as described and illustrated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/908,980 USPP8395P (en) | 1992-07-06 | 1992-07-06 | Ajuga reptans variety named `Arctic Fox` |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/908,980 USPP8395P (en) | 1992-07-06 | 1992-07-06 | Ajuga reptans variety named `Arctic Fox` |
Publications (1)
Publication Number | Publication Date |
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USPP8395P true USPP8395P (en) | 1993-09-28 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US07/908,980 Expired - Lifetime USPP8395P (en) | 1992-07-06 | 1992-07-06 | Ajuga reptans variety named `Arctic Fox` |
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Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USPP7619P (en) * | 1990-05-07 | 1991-08-13 | Nerium oleander plant--`Turner's Tickled Pink` |
-
1992
- 1992-07-06 US US07/908,980 patent/USPP8395P/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USPP7619P (en) * | 1990-05-07 | 1991-08-13 | Nerium oleander plant--`Turner's Tickled Pink` |
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