Rose plant--Lavjack variety

A new and distinct variety of rose plant of the Miniature Class is provided which forms abundantly and continuously highly attractive fully double blossoms. The blossoms exhibit a very stable orange-red coloration and the plant forms small foliage. The new variety is well suited for greenhouse production as a pot plant and is not particularly affected by crytogamic diseases. The blossoms are long lasting on the plant and the petals drop off cleanly.

SUMMARY OF THE INVENTION 
The new variety of Miniature rose plant was created by artificial 
pollination wherein two parents were crossed which previously had been 
studied in the hope that they would contribute the desired 
characteristics. The female parent (i.e., the seed parent) was the Julie 
Ann variety (non-patented in the United States). The male parent (i.e., 
the pollen parent) of the new variety was the Potluck variety 
(non-patented in the United States). The parentage of the new variety can 
be summarized as follows: 
EQU Julie Ann.times.Potluck. 
The seeds resulting from the above pollination were sown and plantlets were 
obtained which were physically and biologically different from each other. 
Selective study resulted in the identification of a single plant of the 
new variety. 
It was found that the new variety of Miniature rose plant of the present 
invention possesses the following combination of characteristics: 
(a) forms in abundance on a continuous basis attractive fully double long 
lasting blossoms which are of a very stable orange-red coloration, 
(b) forms small foliage, 
(c) exhibits a bushy growth habit, 
(d) exhibits good disease resistance, and 
(e) is well-suited for greenhouse production as a pot plant. 
The new variety well meets the needs of the horticultural industry for many 
usages. It is particularly well-suited for use as attractive ornamentation 
as a flowering pot plant for use indoors or outdoors. 
The new variety has been found to undergo asexual propagation by a number 
of routes, including cuttage, etc. The characteristics of the new variety 
have been found to be strictly transmissible by such asexual propagation 
from one generation to another. 
The new variety has been named the Lavjack variety.

DETAILED DESCRIPTION 
The chart used in the identification of the colors is that of The Royal 
Horticultural Society (R.H.S. Colour Chart). The terminology which 
precedes reference to the chart has been added to indicate the 
corresponding colors in common terms. The description is based on one year 
old specimens of the new variety during February while grown in 4-inch 
(i.e., 10 cm.) pots in a greenhouse at West Grove, Pa. 
Class: Miniature. 
Plant: 
Height.--Approximately 18 to 20 cm. on average when grown in a 4-inch pot. 
Habit.--Bushy. 
Branches: 
Color.--Young stems: reddish green. Adult wood: medium green, Green Group 
137A. 
Thorns.--Size: small. Quantity: very abundant. Color: reddish. 
Leaves: 
Petioles.--Upper surface: striped reddish brown on young wood and medium to 
dark green with glandular edges on adult wood. Under surface: medium green 
with a few tiny prickles. 
Stipules.--Adnate, pectinate, narrow and linear. 
Leaflets.--Number: 3, 5 (most often), and 7, sometimes the lower leaflet 
pair is incomplete. Shape: elliptic. Serration: single and regular. 
Texture: firm (consistent). General appearance: dull foliage which often 
is not very dense. Color (young foliage): Upper surface: Green Group 137A 
stained with reddish coloration coupled with reddish edges. Under surface: 
Green Group 137C. Color (adult foliage): Upper surface: dark green, Green 
Group 139A. Under surface: medium green, Green Group 137C. 
Inflorescence: 
Number of flowers.--Approximately 1 to 7 per stem, with 3 to 5 per stem 
being more frequent. 
Peduncle.--Light green, rigid, straight, it bears many reddish prickles, 
its length is approximately 3.5 cm. on average. 
Sepals.--Upper surface: tomentose, and greenish in coloration. Under 
surface: medium green, and bear numerous tiny reddish appendiculate glands 
and a few prickles. 
Buds.--Shape: conical. Length: approximately 1 cm. on average. Size: small. 
Color upon opening: Upper Surface: Red Group 44A with a greenish central 
vein. Under surface: Red Group 44B, suffused with Red Group 45A near the 
edges of the petals, and white at the base. 
Flower.--Form: cuplike. Diameter: approximately 3.5 cm. on average. Color 
(when opening begins): Upper surface: capsicum red, Orange-Red Group 33A, 
turning to Red Group 44A towards the edges of the petals. Under surface: 
Red Group 44B and suffused and edged with Red Group 45A. The central vein 
is clearly visible throughout approximately half of the petal length and 
is whitish in appearance. Color (when blooming): Upper surface: capsicum 
red, Orange-Red Group 33A, turning to Red Group 44A towards the edges of 
the petals. Under surface: Red Group 44B and suffused and edged with Red 
Group 44B. Color (at end of opening): Upper surface: Red Group 44B 
suffused with Red Group 44A and having a greenish-white unguis. Under 
surface: Red Group 44B suffused with Red Group 44A with a whitish central 
vein on the inner petals. The pistils and stamens are clearly visible at 
this stage in the center of the bloom. Fragrance: very light and almost 
nonexistant. Lasting quality: long on the plant. Petal number: 
approximately 28 to 35 on average plus commonly have 3 to 5 petaloids in 
the center. Petal texture: firm (consistent). Petal drop: very good. 
Anthers: strawlike edged with ochre and located above the stigma. Stamen 
number: approximately 40 to 50 on average. Filaments: yellowish, free 
standing, of irregular heights. Pistil number: approximately 35 on 
average. Stigmas: greenish white in coloration. Styles: smaller in size 
than the filaments, bundled together at the base, of irregular heights, 
and greenish-white in coloration. Receptacle: medium green, bears numerous 
prickles and some pediculate glands, and in longitudinal section it is in 
the shape of a pitcher. 
Development: 
Vegetation.--Very vigorous. 
Blooming.--Abundant and continuous. 
Aptitude to bear fruit.--None. 
Resistance to diseases.--Good.