Plants Collected in Paraguay. 119 



JHelotliria Uliginosa, Cogn. in Mart. Fl. Bras., vi, pt. 4, 26. 



Asuncion (T61); Pilcomayo River (986). April-July. 



This vine is rather delicate, climbing by thread-like tendrils over 

 stumps and underbrush, or running" along the ground and rooting 

 at the nodes. Leaves broad-ovate, 5-lobed or angled, deep green, 

 the surface sprinkled with silvery, hardly punctate, dots, and some- 

 what prickly hairs, ciliate on the margins. Petioles 2-5 cm. long, 

 like the stems angular and often prickly haired. Flowers minute, 

 rough downy on the exterior, yellow, and the 2 kinds on different 

 branches on the same plant as in no. 45, or sometimes fully dioeci- 

 ous. Fruit an oval pepo 5-7 cm. long, 1-2 cm. in diameter, pointed 

 at both ends, 3-celled, with many small seeds in each cell. 



Cucur1)itella Clicumifolia (Griseb.), Cogn. in Mart. Fl. Bras., vi, pt. 



4, 70. 



Pilcomayo River (930, 936 and 1508). February-April. 



A dioecious vine common on high banks along the Pilcomayo 

 River. Leaves deeply 3-cleft, and the lobes toothed and lobed. 

 Flowers rather small, yellow, mealy-granular on the outside of the 

 petals. The plant runs several metres on the ground or over small 

 shrubs and herbs. Fruit yellow, smooth, oval or obovoid, 3-4 cm. 

 long, filled with small flattish seeds, brownish-black when mature. 

 The plant has a large, thick, woody root which runs deep into the 

 dry soil in which it grows. Leaves rough on both surfaces, deep 

 green, on stout striate petioles, 3-4 cm. long, the petioles with 1 or 

 2 rows of minute hooked prickles. One can feel occasionally the 

 same kind of prickles on the stems. 



No. 1508, which is possibly a variety, has a leaf which is acumi- 

 nately pointed at the apex, and the lateral lobes irregularly formed 

 or none, 6-7 cm. long and 4-7 cm. broad, cordate. The leaves 

 appear to be polymorphous in many of the specimens collected. 



Cayaponia Citrullifolia (Griseb.), Cogn. in Griseb. Symb. Flor. Arg., 

 135, var. breviloba, Griseb. in D.C. Monog. Phanerog., iii, 749. 



Asuncion (190). November. 



A rough, angular-stemmed tendril-climber with 3-5 palmately 

 lobed leaves which have scattered, callous teeth on the margins, 

 rough with short hairs, rugosely veiny beneath, nearly smooth 

 above, 5-10 cm. long, 6-12 cm. broad. Flowers greenish-yellow. 

 Not seen in fruit. The leaves are very irregularly lobed, all deeply 

 cordate at base. 



