Plants Collected in Paraguay. 223 



mm. long; the blades 7-10 cm. long and 2^-4 cm. broad. Floral 

 leaves linear-lanceolate. Flowers in dense, compact terminal spikes, 

 which are cylindrical, narrowing at the apex, 3-5 cm. long and 1-2 

 cm. in diameter. 



The whole plant has a 3^ellowish appearance. 



Ar^ytliamnia MonteTidensis (Diedr.), Muell. Arg., Linnsea, xxxiv, 

 147. 



Pilcomayo River (996). April. 



A shrub about 4 dm high, with many stems springing from a 

 procumbent, contorted base. Stem strict, scarcely branched, pubes- 

 cent with straight, appressed hairs. Leaves alternate, narroAV 

 elliptical, more or less serrulate, with scattered hairs like those of 

 the stem beneath, 3-5 cm. long and 1-1|- broad, sessile or the lowest 

 on minute petioles. Flowers monoecious, the 2 kinds together in 

 axillary clusters. Inner lacinise of the perianth light yellow. Fruit 

 a 3-carpelled capsule, the carpels looking like 3 little nuts joined 

 together, 5 mm. broad, about 3 mm. long, villous. Seeds globose, 

 obtusely 3-angled, a little wrinkled, nearly 3 mm. in diameter. 



€aperoiiia paliistris, St. Hil., PI. Remarq., 245. 



Asuncion (382); Pilcomayo River (1047); Caballero (438). 

 January-Ma3^ 



This genus differs principally from the preceding Euphorbiaceous 

 genera in having its fruit in united triplets, the 3 cocci generally 

 hispid or echinate. The species here noted is a coarse plant 6-9 

 dm high, the stems beset with spreading, translucent setae, each 

 tipped with a minute oblong head. Nos. 382 and 1047 have broad 

 oval crenate-serrate leaves, while the leaves of 438 are long, narrow 

 lanceolate and sharply serrate. The last differs so greatly from the 

 other forms that it might almost be considered a distinct species. 



Some specimens of 1047 were distributed as C. caatameeefolia, St 

 II il., which very closely resembles this species. 



Manihot Aipi, Pohl., PI. Bras., i, 29. 



Asuncion (390). 



Cultivated extensively and sometimes spontaneous in Paraguay. 

 Known as Mandioca dulce, or the sweet or innocuous Manioc. 

 A shrubby plant with smooth stems and deeply 6-7-parted leaves, 

 1-1^ m. in height. The roots are greatly esteemed as vegetables, 

 looking when boiled for the table something like parsnips. The}^ 



