168 Plants Collected in Paraguay. 



Tournefortia psilostacliya, H. B. K., Nov. Gen. et Sp., iii, 78. 



Pilcomayo Kiver (1041). May. = Balansa 2045. 



A shrub about 12 dm. high, with long virgate branches rising 

 from near the base. Flowers in panicled secund spikes, small, 

 greenish-yellow. Drupes yellow when ripe. 



Tournefortia Salzmaniii, D.C., Prod., ix, 524. 



Asuncion (800). October. 



Similar in inflorescence to no. 1041, but this has 2 rows of secund 

 spikes on the branches of the panicle, while that has only one row. 

 A twining shrub, climbing 2-3 m. upon trees, with a velvety ful- 

 vous tomentum on the leaves beneath, white pubescent above. Stem 

 also fulvous-tomentose. In thickets. 



Heliotropiiim CurassaTicum, L., Sp. PL, 130. 



Asuncion (790); Pilcomayo River (1058). October-June. 



This Heliotropium with scirpoid racemes of bluish-white flowers 

 sprang up abundantly on the muddy flats of the Paraguay after 

 the subsidence of a freshet, and also occurred on the borders of a 

 saline pool on the banks of the Pilcomayo known as Laguna de las 

 Palmas. 



Heliotropium Indicuni, L., Sp. PL, 130. 



Asuncion (56). November-January. 



This plant occurs abundantly in the streets and waste grounds of 

 the city, becoming an unsightly weed. 



Heliotropium leiocarpum, Morong, n. sp. 



Suffruticose, 3-6 dm. high. Stems glandular, fuscous-tomentose, much 

 branched. Leaves opposite, subopposite or occasionally alternate, more or 

 less glandular downy and pubescent or sometimes strigose on both sides, 

 ovate, entire, or somewhat crenate or wavy on the margins, obtuse at the 

 apex, rounded or subcordate at the base ; blades 3-10 cm. long, 1^-5 cm. 

 wide; petioles 3-5 cm. long. Flowering racemes 3 or 4 together, 3-7 cm. 

 long. Calyx deeply 5-lobed, the lobes subulate, glandular hairy, half as long 

 as the corolla. Corolla bright blue, with a yellow eye at the base inside, very 

 hairy in the throat, the tube spreading into a 5 crimped lobed border, 5 or 6 

 mm. high. Fruit depressed globose, smooth, glabrous, about 3 mm. long and 

 a little wider, slightly longer than the persistent sepals, deeply furrowed on 

 2 sides, the lobes not divaricate or toothed at the top, splitting into 2 carpels, 

 each 1-seeded, 



