(Last Modified On 5/8/2013)
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(Last Modified On 5/8/2013)
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Species
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Ceanothus caeruleus Lag.
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PlaceOfPublication
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Gen. Sp. Nov. 11. 1816.-FIG. 3.
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Description
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Shrubs, erect, 3-5 m high, unarmed, the younger branches brown-tomentose. Leaves alternate, ovate-lanceolate, acute, serrulate, slightly rounded basally, 2-3(-4) cm long and 1-1.5 cm wide, pubescent above, densely pale brown tomentose beneath; petioles 2-4 mm long, tomentose, the stipules caducous, 2-4 mm long, elongate-deltoid and keeled, fimbriolate. Inflorescences racemose or paniculate, terminal ca. 4-8 cm long. Flowers with the pedicels ca. 4-7 mm long, pubescent; sepals broadly ovate, becoming notched apically, ca. 1 mm long; petals pale blue, long-clawed; stamens exserted, the filaments ca. 1 mm long, the anthers ca. 0.4 mm long; style ca. 1 mm long, the stigma branches 0.2 mm long. Drupes 3-lobed, slightly crested on the ridges, dark brown, ca. 3-4 mm broad; seeds ca. 2 mm long.
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Distribution
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Mexico, Guatemala, El Salvador, and Panama.
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Specimen
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CHIRIQUI: Volcan de Chiriqui, Davidson 917 (A, F, MO).
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Note
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In his key to species, McMinn (op. cit., pp. 164-165) treats Ceanothus caeruleus as having leaves with three main veins from the base and white flowers, neither of which characterizes the Panamanian collection. However, in his description of the species (op. cit., p. 202) he includes the possibilities of only a single vein from the base and blue, lavender, or white flowers.
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