(Last Modified On 9/17/2013)
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(Last Modified On 9/17/2013)
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Genus
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Richardia L.
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PlaceOfPublication
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Sp. P1. 1: 330. 1753
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Synonym
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not Richardia Kunth, Mem. Mus. Hist. Nat. 4: 433, 437, 1818. (=Zantedeschla Sprengel), not Richardia Adans. Fam. 2: 158. 1763. Nomen rejic. Richardsoniana Kunth ex H.B.K., Nov. Gen. Sp. PI. 3: 350. 1819. Schiedia Bartl. Ord. 210. 1830, not Cham. & Schl. 1826; not Richard 1834. TYPE: S. martinicensis (DC.) A. Richard. Tertrea DC., Prodr. 4: 481. 1830. TYPE: T. martinicensis DC.
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Description
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Plants herbaceous, the stems terete, usually densely pubescent. Leaves with the blades usually wide; stipules adnate to the petioles, the sheath multisetose. Inflorescences terminal, capitate, sessile, subtended by conspicuous foliose in- volucral bracts. Flowers with the calycine cup turbinate or subglobose, the lobes 4-8, connate. Fruits partly superior, dry, the cocci indehiscent; seeds with the strophiole very narrow and short, the cells of the testa isodiametric to contorted.
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Habit
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herb
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Distribution
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known from the United States, Mexico, Central America, South America, and the West Indies.
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Note
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There are about 5 species in the genus.
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Reference
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Lewis, Walter H. & Royce L. Oliver. 1974. Revision of Richardia (Rubiaceae). Brittonia 26: 271-301.
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