172 Plants Collected in Paraguay. 



brous and of a dark glossy green, on long petioles. Corolla 5-t cm. 

 long, funnel-form, a light bluish-purple without, and a deep, dark 

 purple at the base within. Capsule depressed-globose, 2-celled, 

 4-seeded ; seeds black, trigonous, puberulent, the hilum marked 

 with a deep scar. Specific name from the stem, which is white and 

 warty. Blossoms from December to May. 



Ipomoea umbellata (L.), Mejer, 1. c, 99. 



Asuncion (649). April. 



Procumbent or twining over bushes, the stem purplish or dark 

 green, covered with a close stiff down. Juice milky. Leaves 

 cordate-sagittate, large, downy. Flowers a light yellow, umbel- 

 late, 20 or more in an umbel, on peduncles 8-15 cm. long. Corolla 

 trumpet-shaped, with scarcely any lobes, about 3 cm. long. Cap- 

 sules globular, Y or 8 mm. high, 4-seeded ; seeds fuscous with 

 minute pubescence on the surface and silky pubescence on the 

 angles. 



Jacquemontia Blanchetii, Moric, PI. Nouv. Amer., 41, t. 27. 



Asuncion (638 and 687). April-May. 



Twining over herbs and shrubs, with pretty little, bright blue, 

 campanulate flowers, in umbels of 5-20, on long peduncles. Com- 

 mon in thickets. 



Jacqiiemontia Paraguayensis, Britton, n. sp. 



Erect, branching, at least 0.5 m. high, densely and finely brownish-pubes- 

 cent throughout. Stems and branches terete ; leaves short-petioled, oblong, 

 obtuse and mucronate at the apex, obtuse or rounded at the base, entire, 3-4 

 cm. long, 1-1.5 cm. wide ; peduncles axillary, shorter than the leaves, umbel- 

 lately 2-5 flowered ; pedicels 3-5 mm. long ; calyx-lobes all alike, ovate- 

 oblong, acute, about as long as the pedicels ; corolla white, narrowly funnel- 

 form or nearly tubular, 10-12 mm. long ; capsule ovoid, glabrous, shorter 

 than the calyx. 



Between Villa Rica and Escoba (594). January. 



Jacquemontia tamnifolia (L.), Griseb., Fl. Brit. W. Ind.,474. 



Asuncion (679). April. 



Trailing on the ground for several metres in old cultivated fields. 

 Stem pildse with long, appressed white hairs. Flowers in dense, 

 fuscous-woolly heads, on peduncles 8-12 cm. long. Sepals 5, 

 clothed with long hairs, nearly equalling the corolla. Corolla tubu- 

 lar, light blue, white-blotched, slightly projected beyond the calyx. 



