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(Last Modified On 5/30/2013)
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(Last Modified On 5/30/2013)
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Species
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Sarcostemma clausum (Jacq.) Roem. & Schult.
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PlaceOfPublication
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L., Syst. Veg., ed. 15. 6: 114. 1820.
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Synonym
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Cynanchum clausum Jacq., Stirp. Amer. 1: 87, t. 60. 1763. TYPE: (not seen). Funastrum clausum (Jacq.) Schltr., Fedde Repert. Sp. Nov. 13: 283. 1915. Funastrum seibertii Woodson, Ann. Missouri Bot. Gard. 24: 199. 1937. TYPE: Panama, Seibert 637 (MO, holotype).
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Description
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Herbaceous vines often forming dense tangles over shrubs, pale-colored, usually glaucescent; stems glabrous or nearly so. Leaves nearly linear to oblong, somewhat thickened and fleshy, acuminate to cuspidate, usually obtuse or rounded at the base, glabrous or sometimes pubescent beneath, 3-7 cm long and mostly 8-15 mm wide; petioles 2-9 mm long. Umbels few- to many-flowered; peduncles 3-10 cm long; pedicels short pilose, 1.2-2 cm long. Flowers with the calyx densely short pilose, 5-lobed, the lobes lanceolate, acute, ca. 3 mm long and 1.5 mm wide; corolla rotate-subcampanulate, 1.0-1.4 cm broad, the tube lobed nearly to the base, greenish-white, densely short-pilose outside, glabrous inside, the lobes 6-7 mm long and 3-4 mm wide, broadly ovate, rounded, or obtuse and apiculate; corona vesicles ovoid, attached basally to the fleshy an- nular ring, ca. 2.5-3.0 mm high; gynostegium shorter than the corona; stigma umbonate, ovaries densely white sericeous. Follicles 5.0-6.5 cm long and ca. 1 cm wide, pubescent or glabrate, smooth.
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Habit
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vines
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Distribution
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This is a commonly encountered species of the lowlands of Mexico and Cen- tral America, South America and the West Indies.
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Specimen
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BOCAS DEL TORO: Banks of Changuinola River, Dunlap 289 (F, US). Ca. 1/2 mi. from Changuinola River entry into Atlantic, Lazor & Tyson 2685 (FSU). Changuinola to 5 mi. S at junction of Rio Changuinola and Rio Terebe, Lewis et al. 932 (MO, US). CANAL ZONE: Culebra Cut and vicinity, Hunter & Allen 775 (MO). Barro Colorado Island, Bangham 413 (F, US); Croat 4959 (MO), 6172 (DUKE, MO), 6870, 8169, 8295, 11928, 13234 (all MO); Ebinger 577 (MO); Foster 941 (DUKE); Kenoyer 501 (US); Shattuck 315 (F, MO), 1114 (MO); Starry 48 (F); Wetmore & Abbe 132 (F); Wilson 66 (F, MO); Woodworth & Vestal 390 (F, MO), 537 (F). COCLE': El Valle de Anton, bog, Dwyer 1828 (MO). 1-5 mi. S of Anton on old road to coast, Tyson & Blum 2569 (SU, MO). HERRERA: Cienaga Juncalillo, near Correa, McDaniel 8027 (DUKE, FSU). PANAMA: Between Goofy Lake on Cerro Azul and main highway, Correa & Dressler 433 (DUKE, FSU, MO). Between El Jagua Hunting Club on Rio Jagua and El Congor Hill, Hunter & Allen 482 (MO, US). Near Arenoso, lower Rio Trinidad, Seibert 637 (MO).
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