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(Last Modified On 4/4/2013)
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(Last Modified On 4/4/2013)
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Species
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Hyptis savannarum Briq.
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PlaceOfPublication
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Ann. Conserv. Jard. Bot. Geneve 2: 216, 1898.
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Synonym
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Mesosphaerum savannarum Briq., loc. cit., pro syn.
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Description
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Herbs, perennial, coarse, to 3 m, ? glabrous. Leaves lanceolate-ovate, the upper ? lanceolate, acute, serrate, the bases obtuse or attenuate, to 13 cm long and 4 cm wide, sparsely pubescent on the veins, resin-dotted; ? sessile. Inflores- cences capitula, dense, axillary, ? globose at maturity, the peduncles 2.5-5 cm long, the bracts lanceolate or awl-shaped, ca 1 cm long, ? glabrous. Flowers + sessile; calyx tubular-campanulate, ca 3-3.5 mm long at maturity, pilose- annulate within above the nutlets, the teeth acicular, ca 3-3.5 mm long, pu- bescent between; corolla tube ca 6-7 mm long, white and purple, the lower lip ca 1.5-2 mm long, lightly pubescent; stamens exserted, the filaments lightly pubescent, the anthers ca 0.4 mm long; ovary 4-lobed, the gynobase slightly elongated, becoming lobed, the style minutely bifid near the tip. ?Nutlets 4, oblong-flattened, the lobes of the gynobase sometimes adhering, ca 1.5-1.7 mm long, brown.
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Habit
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Herbs
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Specimen
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Guatemala, El Salvador, Costa Rica, Panama, Colombia, and Peru. PANAMA: ViC of Pacora, Allen 1005 (MO); Cerro Campana, SE slope, Lewis et al. 3134 (MO).
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Note
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Hyptis savannarumn is closely related to H. conferta and can be confused with it, especially with the narrow-leaved forms of the latter. However, the larger flowers and more spherical capitula, as well as the glabrous bracts of H. savan- narum provide characters that easily distinguish it from H. conferta.
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