#The aforementioned photographs and following observations and measurements describe plants of the new Alstroemeria grown during the late spring and early summer in 21-cm containers in a glass-covered greenhouse in Chichester, United Kingdom and under cultural practices typical of commercial Alstroemeria production. During the production of the plants, day temperatures averaged 20° C. and night temperatures averaged 14° C. Plants were six months old when the photographs and description were taken. Color references are made to The Royal Horticultural Society Colour Chart, 2001 Edition, except where general terms of ordinary dictionary significance are used. Botanical classification: Alstroemeria hybrida ‘Emily’. Parentage: Female, or seed, parent.—Proprietary selection of Alstroemeria hybrida identified as code number T 18, not patented. Male or pollen parent.—Proprietary selection of Alstroemeria hybrida identified as code number 390/6, not patented. Propagation: Type.—By tissue culture. Root description.—Medium in thickness; fleshy; color, close to 155A. Rooting habit.—Freely branching; dense. Rhizome description.—Shape: Elongate; rounded. Length: About 4 cm to 8 cm. Diameter: About 6 mm to 13 mm. Texture: Smooth. Color: Close to 155A. Plant description: Plant habit.—Compact and uniformly mounded; freely branching, dense and bushy appearance; sturdy and strong plants; vigorous growth habit. Plant height.—About 20 cm to 25 cm. Plant diameter (area of spread).—About 33 cm. Stem description: Aspect.—Mostly upright to somewhat outwardly spreading. Internode length.—About 0.5 cm to 3 cm. Strength.—Strong, sturdy. Texture.—Smooth, glabrous. Color.—Close to 144A. Foliage description: Arrangement.—Alternate; below the peduncles in a single whorl; sessile. Length.—About 6.5 cm. Width.—About 1.6 cm. Shape.—Lanceolate. Apex.—Acute. Base.—Attenuate. Margin.—Entire. Texture, upper and lower surfaces.—Smooth, glabrous. Venation pattern.—Parallel. Color.—Developing and fully expanded leaves, upper surface: Close to 137B; venation, close to 144A. Developing and fully expanded leaves, lower surface: Close to 138B; venation, close to N138B. Flower description: Flower type and habit.—Single cup-shaped flowers arranged in compound umbels; flowers face mostly upright to outwardly; freely flowering habit; about five to seven flowers per inflorescence; about 30 to 100 flowers developing per plant. Natural flowering season.—Plants begin flowering about 6 to 14 weeks after planting; in the garden, flowering is continuous from the late spring until frost in the United Kingdom. Fragrance.—None detected. Flower longevity on the plant.—About two to three weeks on the plant; about one to two weeks as a cut flower; flowers not persistent. Flower buds.—Length: About 3.1 cm. Diameter: About 1.7 cm. Shape: Ovoid. Color: Close to 64A and 144B. Flower diameter.—About 6.5 cm. Flower depth (height).—About 6.7 cm. Perianth.—Arrangement: Six arranged in two whorls, each whorl with two lateral and one median segments. Size, inner perianth: Length, lateral segments: About 4.5 cm. Width, lateral segments: About 1.4 cm. Length, median segment: About 4.2 cm. Width, median segment: About 1.3 cm. Size, outer perianth: Length, lateral segments: About 4.5 cm. Width, lateral segments: About 2.7 cm. Length, median segment: About 4.4 cm. Width, median segment: About 2.7 cm. Shape, inner perianth, all segments: Lanceolate. Shape, outer perianth, all segments: Obovate. Apex, inner perianth, all segments: Cuspidate. Apex, outer perianth, all segments: Emarginate. Base, inner perianth, all segments: Attenuate. Base, outer perianth, all segments: Cuneate. Margin, inner perianth, all segments: Entire to finely crenate. Margin, outer perianth, all segments: Finely crenate. Texture, inner and outer perianths, all segments: Smooth, glabrous. Color, inner perianth: When opening, lateral segments, upper surface: Center, close to 13A; towards the apex and at the base, close to 64A; stripes, close to 183A. When opening, median segment, upper surface: Close to 64A; central spots, close to 13A; stripes, close to 183A. When opening, lateral segments, lower surface: Center, close to 12A; towards the apex, close to 67A; at the base, close to 67A. When opening, median segment, lower surface: Close to 67B. Fully opened, lateral segments, upper surface: Center, close to 13A; towards the apex and at the base, close to 64A; stripes, close to 183A. Fully opened, median segment, upper surface: Close to 64B; central spots, close to 13A; stripes, close to 183A. Fully opened, lateral segments, lower surface: Center, close to 12A; towards the apex, close to 67B; at the base, close to 67B. Fully opened, median segment, lower surface: Close to 67B. Color, outer perianth: When opening, all segments, upper surface: Close to 64A. When opening, all segments, lower surface: Close to 67A. Fully opened, all segments, upper surface: Close to 64B. Fully opened, all segments, lower surface: Close to 67B. Peduncles.—Length: About 12.5 cm. Diameter: About 5 mm. Strength: Strong. Angle: About 30° to 45° from vertical. Texture: Smooth, glabrous. Color: Close to 144A. Pedicels.—Length: About 1.5 cm to 2.5 cm. Diameter: About 2 mm. Strength: Strong. Angle: About 15° to 20° from peduncle axis. Texture: Smooth, glabrous. Color: Close to 144A. Reproductive organs.—Stamens: Quantity per flower: About six. Anther length: About 7 mm. Anther shape: Oval. Anther color: Close to 59B. Pollen amount: Abundant. Pollen color: Close to 199A. Pistils: Quantity per flower: One. Pistil length: About 4 cm. Style length: About 3.5 cm. Style color: Close to 64B. Stigma color: Close to 64B to 64C. Ovary color: Close to 144A. Fruits.—Length: About 1 cm. Diameter: About 7 mm. Color: Close to 143C. Seeds.—Seed development has not been observed on plants of the new Alstroemeria. Disease & pest resistance: Plants of the new Alstroemeria have not been observed to be resistant to pathogens and pests common to Alstroemeria plants. Garden performance: Plants of the new Alstroemeria have been observed to have good garden performance and to tolerate wind, rain and temperatures ranging from about 1° C. to about 25° C.