(Last Modified On 2/7/2013)
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(Last Modified On 2/7/2013)
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Genus
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BERBERIS L.
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PlaceOfPublication
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Sp. P1. 330. 1753.
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Description
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Small, often profusely branched shrubs, occasionally armed with 1- to many- pronged barbs. Leaves simple, often crowded toward the apex of spur branches, membranaceous to coriaceous, deciduous or evergreen, sessile or with a short alate petiole, entire, revolute, or spinose-serrulate, subenervate or with obvious open or reticulate venation, often pruinose and papillose below. Flowers usually yellowish, subglobose, subsessile to long-pedicellate, usually 1- or 2-bracteolate, solitary, fascicled, umbellate, racemose or paniculate, the inflorescence often pedunculate, bracteate; sepals in 2-3 whorls of 3, the outer usually shorter and narrower, the inner usually obtuse, oblong to orbicular, as long as or longer than the petals, eglandular; petals usually in 2 whorls of 3, emarginate or rounded, often un- guiculate, usually with a basal pair of glands; stamens hypogynous, antepetalous, the anthers bilocular, valvate, the filaments occasionally subapically dentate, apically truncate or apiculate; ovary 1- to 15-ovulate, the stigma capitate, sessile or provided with a prominent style. Berries ellipsoid to globose, red, purple or black, often pruinose, juicy or rather dry, 1- to few-seeded, the seeds yellowish or cyanic.
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Habit
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shrubs
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Note
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For a taxonomic revision of the genera Berberis and Mahonia, both well endowed with American and Asian species, the reader is referred to the work of Ahrendt (in Jour. Linn. Soc. 57: 1. 1961) in which nearly 500 species of Berberis and about 100 species of Mahonia are recognized, although no Panama specimens of either genus are cited. Onlv one species of the often-cultivated genus Berberis, has been recorded from Panama.
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Reference
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Ahrendt (in Jour. Linn. Soc. 57: 1. 1961)
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