USPP400P - Rose plant - Google Patents

Description

May 14, 1940. A COUTEAU Plant Pat. 400

ROSE PLANT Filed Jan. 18, 1940 Patented May 14, 1940 UNITED STATES Plant Fat. 400

PATENT OFF-ICE ROSE PLANT Application January 18, 1940, Serial No. 314,550

1 Claim.

The present invention appertains to a new and distinct variety of climbing rose plant of the polyantha class, resulting from a cross of a white polyantha an unknown seedling.

5 Heretofore, by far the most satisfactory roses among the polyanthas are those having pink and red flowers. For some unknown reason there have been few, if any, varieties of white shades comparable in vigor to the red and pink. This invention, therefore, particularly fulfills a longfelt want in that it is difierent in this and many respects from any other rose now in cultivation.

Primarily, in habit of growth, the new variety is a climber quite similar to Tausendschon, and this characteristic together with the large clusters of its large white flowers, smooth and glossy foliage, and smooth and almost thornless stems, distinguish it from all other varieties in the polyantha group, and establish a novel combination 20 of characteristics in such a rose.

Another notable feature of mynew variety resides in the persistence of its blooming habit in the spring season and occasional remontance in summer and fall.

The plant has been asexually reproduced and its novel characteristics above referred to have been found to be firmly established.

The following is a detail description of the new variety, all references to color being in accord with Ridgways Color Standard.

Parentage:

Seed parent.White polyantha. Pollen parent-Unknown. 35 Classification:

Botanic.-Climber. Commercial-Climber.

Flower is not afiected Curl back CaZyr.Shape-apple. Size-small. Aspect smooth.

Peclzmcle. Length medium. Aspect prickly. ColorLight Cress Green, Plate 31. Strength-stiff. '5 Opcning.Bud opens well. Is not affected by adverse conditions. Bloom:

Size-Small.

Average size when fully expanded-Three 10 inches.

Bornc.ln fiat clusters.

Stems.Medium length; normal strength.

Form.When first open-cup;oed. Perma- 15v hence-flattens.

PetaZage-Double (full but open center). Number of petals under normal conditions 15.

C0l01'.-Center of fiower-J/Vhite, Plate 53,

with slight tinge of Marguerite Yellow, Plate 30. Outer petaIs White, Plate 53, with slight tinge of Marguerite Yellow, Plate 30. Base of petals (aiglet)Primrose Yellow, Plate 30. Inside of petals- White, Plate 53, with slight tinge of Marguerite Yellow, Plate 30. Reverse of petalsWhite, Plate 53, with slight tinge of Marguerite Yellow, Plate 30. General tonality from a distanoe-White. Discoloration.General tonality at end of first dayWhite, Plate 53, with Marguerite Yellow, Plate 30.v Second dayWhite, Plate 53. Third dayWhite, Plate 53. P613315:

Texture.Thin. Are not affected by wet or hot weather. Appearance. Inside satiny; outside shiny. Form.----Scalloped. Arrangement.--Informal (with rags in center). Petaloids in center-few. Persistence-Drop off cleanly. Fragrance-Slight. Nature-tea (average hybrid tea scent). Lasting quality.0n the plant-very long.

As out flowerfair.

Genital organs:

Stamens, anthers.-Sizesmall; many. ColorApricot Yellow, Plate 4. Arrangementregular around styles. Stamens, 'filanmmts (threads) .Size-me dium length. ColorMartius Yellow, Plate 4. PoZZen.-Apricot Yellow, Plate 4.

StyZes.--Bunched; medium length; thin. Wood: Stigmas.Color--Martius Yellow, Plate 4. New wood.Co1or-Bice Green, Plate 1'7. Ovaries.All enclosed in calyx. Bark-smooth. Fruit: Variety is sterile with its own pollen. Old Green Plate Bark-smooth. Plant Thorns:

Form: Climber.

Growth: Medium, upright. Foliage: '7 leaflets or more.

Size-Small.

Quantity.Normal.

Color.New foliage: upper sideLight Elm Green, Plate 1'7; under side-Light Bice Green, Plate 1'7. Old foliage: upper side Varleys Green, Plate 18; under side Rainette Green, Plate 31.

Shape.Lanceolate.

Texture-Upper side--glossy, smooth; un-

der side-smooth. Ribs and veins-light.

Edge.Serrated (saw toothed).

Serration.-Single; small.

Rachis.Color-Light Cress Green, Plate 31. Under side-hooked prickles.

StipuZes.Mediurn length; serrated.

Disease resisiance.nly slight tendency to black spot.

Thorns.--Quantity on main stalks from base and on laterals from stalkfew. Form-broad base; hooked downward. Color when youngMignonette Green, Plate 31. Positionirregular.

PrickZes.Quantity on main stalks and on laterals-few. Co1orMars Brown, Plate Having thus described my new variety, what I claim as new and desire to secure by Letters Patent is:

A new and distinct variety of rose plant of the polyantha group, characterized as to novelty by its climbing habit of growth, its production of large flowers in large clusters and the color of the flowers, its smooth and glossy foliage and 36 color thereof, its smooth and almost thornless stems, and its persistence of bloom followed by occasional remontance, substantially as shown and described.

ALPHONSE COUTEAU.

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