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(Last Modified On 11/29/2012)
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(Last Modified On 11/29/2012)
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Species
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ACANTHOCEREUS PENTAGONUS (L.) Britton & Rose
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PlaceOfPublication
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Contr. U. S. Nat. Herb. 12:432. 1909
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Reference
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Carnegie Inst. Wash. Publ. No. 248. 2:123. 1920.
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Synonym
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Cactus pentagonus L. Sp. P1. 467. 1753. Cactus pitajaya Jacq. Enum. P1. Carib. 23. 1761. Cereus pentagonus (L.) Haw. Syn. P1. Succ. 180. 1812. Cactus prismaticus Willd. Enum. P1. Suppl. 32. 1813. Cereus prismaticus (Willd.) Haw. Suppl. P1. Succ. 77. 1819. Cereus pitajaya (Jacq.) DC. Prodr. 3:466. 1828. Cereus acutangulus Otto, in Pfeif. Enum. Cact. 107. 1837. Cereus princeps Pfeif. loc. cit. 1837. Cereus variabilis Engelm. in Boston Journ. Nat. Hist. 5:205. 1845, non Pfeif. Cereus nitidus Salm-Dyck, Cact. Hort. Dyck. 1849:211. 1850. Cereus vasmeri Young, Fl. Tex. 276. 1873. Cereus dussii K. Sch. Gesamtb. Kakteen 89. 1897. Cereus sirul Weber ex Gosselin, in Bull. Mus. Hist. Nat. Paris 10:3 84. 1904.
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Description
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Clambering terrestrial shrubs, erect when young, soon arching and rooting at the tips of the stems and forming rather extensive clones, the young stem joints
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Habit
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shrub
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Description
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elongate, rather slender, 3- to 5-angled, the areoles marginal on the angles, shortly pubescent and with few to several stout straight spines. Flowers very showy, the perianth tube 15-20 cm. long, about 5 mm. in diameter at the base, abruptly dilated near the orifice into a short obconic throat about 4 cm. in diameter, armed with rather sparse spiny areoles, the lobes widely spreading, white or the outer segments more or less suffused with greenish red, the inner oblanceolate, acute to acuminate, 4-7 cm. long; ovary cylindric-ovoid, truncate, about 2 cm. long, densely armed with spiny areoles. Berry oblong-ovoid, 4-5 cm. long, deep red when ripe, persistently spiny.
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Distribution
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Forming thickets at the margins of beaches from the keys of Florida and the coast of Texas southward to Colombia and Venezuela; sporadically introduced in the Antilles and perhaps indigenous in Guadeloupe.
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Specimen
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CANAL ZONE: vicinity of Miraflores Lake, G. White I45. PANAMA: Isla Taboga, Woodson, Allen & Seibert i490, Maxon d Valentine 6967; Bella Vista, Killip 120I5; Old Panami, Hitchcock in I9ii; Gorgona Beach, G. White I54.
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