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Key to families | Table of families and genera

Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.

 

AMELANCHIER SERVICE-BERRY

Christopher S. Campbell


Shrub, small tree. Stem: bark gray- to red-brown; overwintering buds ovate to lanceolate, ± red to ± purple. Leaf: simple, deciduous; stipules deciduous. Inflorescence: raceme, cluster (panicle), flowers 3–16+; pedicel bractlets generally 1–2. Flower: hypanthium bell- to urn-shaped, bractlets 0; sepals persistent; petals erect to spreading, white (suffused with red); stamens ± 10–20; ovary inferior, 2–5-chambered, styles 2–5. Fruit: pome of 2–5 papery segments, berry-like, generally spheric, generally blue-black.
± 25 species: temperate North America, Eurasia, northern Africa. (Latin: from old French common name) Fruit of some species used by Native Americans for food.
Unabridged references: [Jones 1946 Illinois Biol Monogr 20:1–126]
Unabridged note: Variation in Amelanchier in western North America not studied as extensively as in eastern North America, where hybridization, polyploidy, and apomixis have contributed to considerable taxonomic complexity (Campbell & Wright 1996 Folia Geobot Phytotax 31:345–354; http://biology.umaine.edu/Amelanchier).

Key to Amelanchier

1. Leaf finely hairy abaxially in fruit; twigs glabrous (n Desert Mountains) to generally white-hairy; styles 2–4(5) ..... A. utahensis

1' Leaf glabrous abaxially in fruit; twigs glabrous; styles 4–5 ..... A. alnifolia

2. Ovary top glabrous; petals 8–12 mm; leaf glabrous or occasionally sparsely hairy abaxially in flower; fruit 8–9 mm diam ..... var. pumila

2' Ovary top generally hairy; petals 12–15 mm; leaf finely or occasionally densely hairy abaxially in flower; fruit 10–13 mm diam ..... var. semiintegrifolia

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Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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