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Project Name Data (Last Modified On 5/10/2013)
 

Flora Data (Last Modified On 5/10/2013)
Species Petrea volubilis L.
PlaceOfPublication Sp. P1. 626. 1753.
Synonym Petraea volubilis Gaertn., Fruct. & Sem. P1. 2: 471, t. 177, fig. 5. 1791. Petraea (volubilis?) mexicana Cham., Linnaea 7: 367. 1832. Petrea stapelsiae Paxt., Paxton's Mag. Bot. 4: 199. 1838. Petraea ovata Mart. & Gal., Bull. Acad. Roy. Sci. Bruxelles 11: 328. 1844. Petrea sub-serrata Barcena, Notic. Ci. Estad. HidaIg. 31. 1877, non Cham., 1832.
Description Woody vine or subshrub to 13 m tall; branches slender, grayish or brownish, prominently lenticellate, densely puberulent with mostly subappressed brownish hairs (on older wood) or on young shoots hirsute with spreading hairs, obtusely tetragonal or subterete; leaf-scars large and prominent. Leaves opposite, elliptic, 3-21 cm long, 1.4-10.6 cm wide, apically acute or short-acuminate, rarely obtuse or emarginate, basally acute or obtusely narrowed, rarely rounded or subcordate, the margins entire, rarely sparsely dentate, often more or less undulate or sub- revolute, and densely asperulous on both surfaces, sometimes obscurely short- pubescent along the midrib above and the larger venation beneath, or puberulent, but not densely nor conspicuously so, mostly glabrous or subglabrous; mature petioles stout, 4-13 mm long, densely or sparsely short-pubescent with spreading brownish hairs or puberulent, the axils often with dense fasciculations (actually aborted racemes) of bractlets, densely hirsute, the pubescence ferruginous, firmly chartaceous when mature, scabrous. Racemes abundant, solitary, axillary, often clustered near the tips of the branches and branchlets, erect to nutant or pendent, 8-29 cm long, 4-8 cm wide, mostly short and loosely many-flowered; pedicels ca. 8 mm long, obscurely puberulent; torus expanded, not ribbed. Flowers with the calyx light, bright blue, the tube cylindric, gradually ampliate apically, ca. 3 mm long, ca. 2 mm wide basally and 2.5-3 mm wide apically, not ribbed, densely pubescent, the lobes oblong, rounded, 13-18 mm long, 4-6 mm wide, membranous and glabrous on both surfaces; the calycinal crest composed of 5 membranous, triangular-ovate erect, acute lobes ca. 1 mm long and wide, sparsely ciliate on the margins; corolla hypocrateriform, bright blue, the tube infundibular, 6-8 mm long, the basal portion narrow-cylindric and 1.5-2 mm wide, conspicuously ampliate to 4 or 5 mm apically, the lower 3/4 portion glabrous, the upper '/4 densely puberulent outside, within puberulent and densely villous-pubescent among the stamens, the anterior lobe broadly elliptic, 5-6.5 mm long, 4-4.5 mm wide, slightly sinuate along the margins, densely puberulent on both surfaces, the remaining lobes similar but smaller, 4-6 mm long, ca. 4 mm wide; stamens inserted 4.5 and 5 mm above the base of the corolla-tube, the staminode obsolete; ovary oblong- subobovate, glabrous; fruiting-calyx tough, the tube to 4 mm long, densely long- pubescent, the lobes firm and stiff, to 22 mm long and 7 mm wide, divergent and the calycinal crest callose, converging inwards.
Habit Woody vine or subshrub
Distribution In thickets and dry forests from Cuba and northern Mexico to Panama. This species is introduced and naturalized in India, China, Java, and elsewhere in the Old World tropics and is widely cultivated.
Common Purple-wreath adelfa
Common adolfina choreque
Common estrella azul flor de Jesus
Common flor de Santa Maria hoja chigile
Common lengua de vaca raspasombrero
Common soltero totopostillo
Specimen CANAL ZONE: Barro Colorado Island, Aviles 14 (BARRO). Ahorca Lagarto to Culebra, Cowell 374 (NY, US). Barro Colorado Island, Shattuck 412 (BARRO, part).
 
 
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