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Published In: Philosophische Botanik 1: 135, 155. 1789. (Apr 1789) (Philos. Bot.) Name publication detail

Project Name Data (Last Modified On 9/22/2017)
Acceptance : Accepted

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2. Amelanchier Medik. (shadbush, serviceberry)

Plants trees or shrubs, sometimes forming colonies, lacking spines and thorns. Bark gray, smooth, becoming shallowly furrowed and with scaly ridges with age. Twigs orangish brown to purplish brown, with small white lenticels, glabrous, usually glaucous, the leaf buds narrowly elliptic lanceolate, sharply pointed at the tip, with several overlapping scales, these greenish yellow to light brown, at maturity often strongly tinged with red or purple. Leaves alternate, folded lengthwise during development, relatively long-petiolate, the petioles lacking glands, densely pubescent with soft matted hairs when young, glabrous or nearly so at maturity. Stipules 9–15 mm long, linear, pinkish to reddish purple, shed during leaf development. Leaf blades simple, unlobed, the margins sharply toothed, especially above the middle. Inflorescences short racemes at the tips of normal branches, produced before the leaves or as the leaves begin to unfold, the axis densely hairy at flowering but becoming nearly glabrous by fruiting, the flowers subtended by slender, reddish purple, hairy bracts that are shed as the flowers open. Flowers epigynous, the hypanthium fused to the ovaries, hairy at flowering, the rim with a nectar disc. Sepals 5, spreading to recurved, hairy on the outer surface, persistent at fruiting. Petals 5, narrowly oblanceolate to narrowly strap-shaped, often somewhat lax or drooping, white or rarely pink. Stamens 15–20, the anthers yellow. Pistils 5. Ovaries inferior, fused along the lateral surfaces and dorsally to the hypanthium at flowering, but with the inner sides free until the fruit develops, each with 2 ovules. Styles 5, fused toward the base, the stigmas more or less disc-shaped. Fruits pomes, globose to somewhat oblong-elliptic in outline, glabrous, with 4–10 easily exposed seeds embedded in the “core” of leathery or papery carpel wall remains and the fleshy portion. About 20 species, North America, Europe, Asia, Africa.

Amelanchier species are browsed by deer and livestock. The fruits are relished by wildlife; in fact, mature fruits are often relatively uncommonly encountered, birds having consumed them as they ripened. Some additional species are cultivated as ornamentals, in particular A. spicata (Lam.) K. Koch.

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