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(Last Modified On 3/21/2013)
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(Last Modified On 3/21/2013)
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Genus
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Hydrolea L.
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PlaceOfPublication
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Sp. Pl. ed. 2, 328, 1762.
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Description
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Herbs, annual or perennial, or shrubby plants with capitate glandular hairs or glabrous, spiny (in Panama). Leaves alternate, entire. Inflorescences corymbose or flowers in axillary or terminal cymes. Florets rarely sparse or in cincinni; calyx parted nearly to the base, sometimes accrescent; corolla blue or rarely white, cam- panulate-rotate, deeply parted; stamens glabrous, the filaments dilated at the base, inserted in the tube of the corolla, the anthers sagittate, dorsifixed; ovules numerous (up to 400), the styles distinct, 2, rarely 3-5, the stigmas capitate-clavate. Capsule ovoid or globose, loculicidal, septicidal or irregularly dehiscent; seeds small, longi- tudinally rugose-striate, the embryo 0.4-0.5 mm long.
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Habit
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Herbs
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Distribution
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A genus of nearly world-wide distribution having ca 20 species in tropical regions extending into temperate areas especially in eastern North America
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Note
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mono- graphed by Brand [in Engler, Pflanzenreich 59(IV, 251): 174-186, 1913]; one variable species presently known from Panama.
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