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(Last Modified On 1/28/2013)
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(Last Modified On 1/28/2013)
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Species
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SESUVIUM PORTULACASTRUM (L.) L.
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PlaceOfPublication
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Syst. Nat. ed. 10. 1058. 1759.
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Synonym
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Portulaca portulacastrum L. Sp. P1. 446. 1753. Sesuvium revolutifolium Ortega, Dec. 19. 1797. Sesuvium ortegae Spreng. Bot. Gart. Halle Nachtr. 1:36. 1801. Sesuvium pedunculatum Pers. Syn. P1. 2:39. 1806. Sesuvium sessile Pers. loc. cit. 1806. Sesuvium sessiliflorum Domb. ex Rohrb. in Mart. Fl. Bras. 142:310. 1872, nom. nud. in syn. Halimus portulacastrum (L.) 0. Ktze. Rev. Gen. 1:263. 1891.
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Description
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Herbaceous perennials, glabrous throughout, the branches trailing and often rooting at the nodes, sometimes rather stout. Leaves linear, elliptic or narrowly obovate, 1-5 cm. long, 0.2-1.0 cm. broad, subacute to acute at the apex, gradually tapered to the base; petiole 1-5 mm. long, dilated at the base and clasping the stem but the sheaths not connate. Inflorescence axillary, the flowers solitary, pink; pedicel 2-11 mm. long. Flowers with the perianth tube obconic to subcampanu- late, 1.5-3.0 mm. long, the lobes ovate, 4-7 mm. long, 3.0-4.5 mm. broad, some- what auriculate at the perianth tube orifice, persistent and somewhat reflexed in fruit, appendage horn-like, 1.0-1.5 mm. long; stamens numerous, inserted at the orifice of the perianth tube, free or subconnate, the filaments 1.5-3.5 mm. long, gradually tapering to the apex, the anthers oblong, 0.5-0.75 mm. long, 0.25-0.5 mm. broad; ovary ovoid to subglobose, 3.0-3.5 mm. long, 2.5-3.0 mm. in diameter, the styles 3 or 4, 1.5 3.5 mm. long spreading or erect. Capsule ovoid or obovoid, about 6.5 mm. long, 3 mm. in diameter, circumscissile below the middle; seeds 8-30, lenticular-reniform, about 1.0-1.5 mm. in diameter, the testa smooth, black.
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Habit
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Herb
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Distribution
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Circumtropical.
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Specimen
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BOCAS DEL TORO: bar mouth, Changuinola Valley, Dunlap 139, Stork 139. CANAL ZONE: Cristobal, Artarmanoff s. n.; Balboa, Standley 25625, 30882; railroad and dock yards at Balboa, Macbride d Featherstone 24; vicinity of Fort Sherman, Standley 3II80. COLON: vicinity of Palenque, Pittier 4118. PANAMA: Pearl Islands, Johansen i1; Saboga Island, Allen 2634, Miller 1965; near Punta Paitilla Military Reservation outskirts of Panama City, Bro. Maurice 754; San Jose Island, Erlanson i73. SAN BLAS: forests around Puerto Obaldia, Pittier 4400.
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