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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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Cynanchum apocynellum (Gl. & Mold.) Spellman
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PlaceOfPublication
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Phytologia 25: 438. 1973.
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Synonym
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Tassadia apocynella Gl. & Mold. ex Mold., Phytologia 1: 15. 1933. TYPE: Colombia, Lawrance 584 (NY, MO).
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Description
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Slender herbaceous vines, minutely and sparingly scabrous on the stems, petioles, and inflorescence. Leaves rhombic-elliptic, basally cuneate, apically acuminate, the margins revolute at least in drying, mostly 4.5-4.8 cm long and 2.3-2.8 cm wide, glabrous beneath, sparsely appressed pubescent above, more densely so along the midrib, with 1-3 short broad glands at the base of the upper surface; petioles 8-13 mm long. Inflorescence a panicle of sessile, 3-5-flowered umbels; pedicels 2.5-3.0 mm long, densely short pubescent. Flowers with the calyx conspicuously shorter than the corolla tube, minutely pubescent outside, glabrous within, a single dactyliform gland within at the base of each sinus, the lobes 0.6-0.7 mm long and ca. 0.4-0.6 mm wide, ovate, obtuse; corolla urceolate, the tube 0.9-1.1 mm long, nearly as broad, glabrous, the 5 lobes recurved for about half their length, lanceolate-ovate, densely white papillose inside, 1.9-2.1 mm long and ca. 1.0 mm wide; corona segments 5, apparently distinct, helmet-shaped in outline, ca. 0.75 mm broad and ca. 0.4 mm high; gynostegium short, conical, broad at the base, truncate, ca. 0.6-0.7 mm high. Follicles generally paired, 3.5-3.8 cm long, slender, apically long attenuate.
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Habit
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vines
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Distribution
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known only from Colombia and from a single locality in Panama.
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Specimen
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PANAMA: 1 mi. despues de la Eneida cerca de Cerro Jefe, Correa & Dressler 969 (MO). Cerro Jefe, Duke 9444 (MO, OS).
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