]30 Plants Collected in Paraguay. 



Borreria cen trail tlioides, C. and S., Linnaea, iii, 328. 



Between Villa Rica and Escoba (610). January. = Balansa 

 1743 a. 



A stiff square-stemmed plant 3-6 dm. high, with opposite or fas- 

 cicled narrowly-elliptical leaves, which are from 2 to 4 cm. long and 

 5-12 mm. broad. Flowers small, white, in long, naked, compound, 

 terminal cymes. Young branches and calyx more or less downy. 

 Inflorescence 5 or 6 times trichotomous. Stipules with a short 

 sheath and 5-1 setae. 



Borreria latifolia (Aubl.), Schum. in Mart. Fl. Bras., vi, pt. 6, 61. 



Caballero (605). January. 



Differs from the preceding species in having opposite, broad lan- 

 ceolate, acuminate leaves, 4-7 cm. long and 1^-3 cm. wide. Flowers 

 white, in small axillary verticils along the stem for nearly its whole 

 length. Stipules with 10 to 15 setae. As I found it, it was not 

 creeping, as in ordinary cases, but a weak-stemmed plant growing 

 2-2^ m. high, and sustaining itself by leaning against shrubs in 

 thickets. 



Borreria ocymoides, D.C., Prod., iv, 544. 



Pilcomayo River (973). March. 



This species has delicate stems, mostly prostrate, 2 to 6 dm. long. 

 Leaves linear or linear-lanceolate, often cuspidate, l^-3j cm. long, 

 2-6 mm. wide, revolute, 1-nerved, the nerve white and prominent 

 beneath. Flowers white, minute, terminal or in small clusters in 

 opposite leaf axils appearing whorled. Stipules with 6-9 rather 

 long setae. 



Borreria Poaya, D.C., Prod., iv, 549. 



Caballero (611). January. = Balansa 1765. 



Stems 2-3 dm. high, ascending, often much branched, glabrous or 

 pubescent on the upper branches, or sometimes all rough. Leaves 

 2-4 cm. long and 5-20 mm. broad, very acute at the apex, sloping 

 into a very short petiole. Flowers in terminal, somewhat globular 

 clusters, or of several terminal verticils, with a pair of reflexed, 

 foliaceous bracts beneath them ; corolla purplish, 7-12 mm. long. 

 Stipules with 1-3 rather large setae. 



