A distinct cultivar of Chrysanthemum plant named `Regal Yolompoc`, characterized by its upright, outwardly spreading and uniformly mounded plant habit; freely branching, dense and full plants; dark green foliage; uniform flowering; early flowering, eight-week response time; very freely flowering with about eight inflorescences per lateral stem; daisy-type inflorescences that are about 6.3 cm in diameter; dark purple-colored ray florets and bright yellow disc florets; and excellent postproduction longevity with inflorescences and leaves maintaining good substance and color for about three weeks in an interior environment.

BACKGROUND OF THE INVENTION
 The present Invention relates to a new and distinct cultivar of
 Chrysanthemum plant, botanically know as Dendranthema grandiflora and
 hereinafter referred to by the cultivar name Regal Yolompoc.
 The new Chrysanthemum is a product of a mutation induction breeding program
 conducted by the Inventor in Fort Myers, Fla. and Salinas, Calif. The
 objective of the program is to create new Chrysanthemum cultivars with
 desirable inflorescence form and floret colors, good substance, and
 excellent post-production longevity.
 The new Chrysanthemum originated by exposing unrooted cuttings of the
 Chrysanthemum cultivar Yolompoc, disclosed in U.S. Plant Pat. No. 11,203,
 to X-ray radiation in September, 1996, in Fort Myers, Fla. Following the
 radiation treatment, the cuttings were rooted and terminal apices were
 removed (pinched) three times to promote lateral branch development. After
 lateral branches from the third pinch reached sufficient size, terminal
 cuttings were harvested, planted and flowered in a controlled environment
 in Salinas, Calif. The new Chrysanthemum was discovered and selected by
 the Inventor as a single flowering plant within this population in April,
 1997. The selection of this plant was based on its desirable inflorescence
 form and ray floret color.
 Asexual reproduction of the new Chrysanthemum by terminal cuttings
 harvested in a controlled environment in Salinas, Calif., has shown that
 the unique features of this new Chrysanthemum are stable and reproduced
 true to type in successive generations.
 SUMMARY OF THE INVENTION
 The cultivar Regal Yolompoc has not been observed under all possible
 environmental conditions. The phenotype may vary somewhat with variations
 in environment such as temperature, daylength and light intensity,
 without, however, any variance in genotype.
 The following traits have been repeatedly observed and are determined to be
 the unique characteristics of `Regal Yolompoc`. These characteristics in
 combination distinguish `Regal Yolompoc` as a new and distinct
 Chrysanthemum:
 1. Upright, outwardly spreading and uniformly mounded plant habit.
 2. Freely branching, dense and full plants.
 3. Dark green foliage.
 4. Uniform flowering.
 5. Early flowering, eight-week response time.
 6. Very freely flowering; about eight inflorescences per lateral stem.
 7. Daisy-type inflorescences that are about 6.3 cm in diameter.
 8. Dark purple-colored ray florets and bright yellow disc florets.
 9. Excellent postproduction longevity with inflorescences and leaves
 maintaining good substance and color for about three weeks in an interior
 environment.
 Compared to plants of the parent cultivar, Yolompoc, ray florets of plants
 of the new Chrysanthemum are darker purple in color than ray florets of
 plants of the cultivar Yolompoc. In addition, plants of the new
 Chrysanthemum flower about one or two days later than plants of the
 cultivar Yolompoc.
 Compared to plants of the cultivar Raspberry Yolompoc, U.S. Plant patent
 application Ser. No. 09/525,658 filed concurrently with this application,
 ray florets of plants of the new Chrysanthemum are more blue and slightly
 darker in color than ray florets of plants of the cultivar Raspberry
 Yolompoc.

DETAILED BOTANICAL DESCRIPTION
 In the following description, color references are made to The Royal
 Horticultural Society Colour Chart except where general terms of ordinary
 dictionary significance are used. The following observations and
 measurements describe plants grown and flowered during the Autumn in
 Leamington, Ontario, Canada, under greenhouse conditions which approximate
 those generally used in commercial potted Chrysanthemum production. Four
 unrooted cuttings were directly stuck in a 15-cm container and pinched
 once. Plants used for this description were grown as center budded-types.
 Measurements and numerical values represent averages of typical flowering
 plants.
 Botanical classification: Dendranthema grandiflora cultivar Regal Yolompoc.
 Commercial classification: Daisy center budded-type potted Chrysanthemum.
 Parentage: Induced mutation of the Dendranthema grandiflora cultivar
 Yolompoc, disclosed in U.S. Plant Pat. No. 11,203.
 Propagation:
 Type.--Terminal tip cuttings.
 Time to rooting.--Seven to ten days with soil temperatures of 21.degree. C.
 Rooting habit.--Fine, fibrous and well-branched.
 Plant description:
 Appearance.--Herbaceous daisy potted Chrysanthemum typically grown as a
 center budded-type. Inverted triangle; stems upright and outwardly
 spreading giving a uniformly mounded appearance to the plant. Freely
 branching; about four lateral branches develop after removal of terminal
 apex (pinching); dense and full plants.
 Plant height.--About 29 cm.
 Plant width.--About 43 cm.
 Foliage description.--Arrangement: Alternate. Length: About 6.5 cm. Width:
 About 5.1 cm. Apex: Cuspidate. Base: Cuneate to truncate. Margin:
 Palmately lobed, sinuses between lateral lobes mostly divergent. Texture:
 Upper and lower surfaces with very fine pubescence; veins prominent on
 lower surface. Petiole length: About 2.1 cm. Petiole diameter: About 3 mm.
 Color: Young foliage upper surface: 147A. Young foliage lower surface:
 147B. Mature foliage upper surface: 147A. Mature foliage lower surface:
 147B. Venation upper surface: 147A to 147B. Venation lower surface: 147B.
 Inflorescence description:
 Appearance.--Daisy inflorescence form with elongated oblong-shaped ray
 florets. Inflorescences borne on terminals above foliage. Disk and ray
 florets arranged acropetally on a capitulum.
 Flowering response.--Under natural conditions, plants flower in the
 autumn/winter in the Northern Hemisphere. At other times of the year,
 inflorescence initiation and development can be induced under short
 day/long night conditions (at least 13.5 hours of darkness). Plants
 exposed to three weeks of long day/short night conditions after planting
 followed by photoinductive short day/long night conditions flower about
 eight weeks later; early flowering.
 Postproduction longevity.--Inflorescences and leaves maintain good color
 and substance for about three weeks in an interior environment.
 Quantity of Inflorescences.--Very freely flowering; about eight
 inflorescences per lateral stem and about 32 inflorescences per plant.
 Inflorescence bud.--Height: About 6 mm. Diameter: About 6 mm. Color: Close
 to 143A.
 Inflorescence size.--Diameter: About 6.3 cm. Depth (height): About 1.3 cm.
 Diameter of disc: About 1.3 cm.
 Ray florets.--Shape: Elongated-oblong. Orientation: Initially upright, then
 about 25.degree. to horizontal. Length: About 3 cm. Width: About 9 mm.
 Apex: Acute to rounded to emarginate. Margin: Entire. Texture: Smooth,
 glabrous, satiny. Number of ray florets per inflorescence: About 20.
 Color: When opening: Close to 61A. Fully opened, upper surface: Close to
 61A fading to lighter than 61A to close to 70A. Fully opened, lower
 surface: Close to 72B.
 Disc florets.--Shape: Tubular. Apex: Serrated. Length: About 5 mm. Width:
 Apex: About 1.5 mm. Base: About 1 mm. Number of disc florets per
 inflorescence: About 96. Color: Immature: 144A to 154A. Mature: Apex:
 Yellow, 7A to 9A. Mid-section: White, 155D, or very light green, 145A to
 145B. Base: White, 155D.
 Peduncles.--Aspect: Angled about 40.degree. to stem. Length: First
 peduncle: About 3.8 cm. Fourth peduncle: About 6.3 cm. Diameter: About 2.5
 mm. Texture: Pubescent. Color: 146A.
 Reproductive organs.--Androecium: Present on disc florets only. Anther
 color: 7A. Pollen amount: None observed. Gynoecium: Present on both ray
 and disc florets.
 Disease resistance: Resistance to pathogens common to Chrysanthemums has
 not been observed on plants grown under commercial greenhouse conditions.
 Seed production: Seed production has not been observed.