2G0 Plants Collected in Paraguay. 



Panicillll Cliloroticuin, Nees, in Trin. Diss., ii, 236. 



Named by N. E. Brown. 



Pilcomayo River (1002). April. 



Some of this was distributed as /'. elephantipes, Trin. 



An aquatic species, with floating culms 2-3 m. Sometimes nearly 

 5 m. in length. Stem leaves 13-25 cm. long. Panicle widely 

 spreading, 2-5 dm. long, the branches rising singly or 2-3 from 

 the main rachis, and 15-25 cm. long, many forked. Spikelets much 

 scattered, solitary, on short pedicels along the ultimate branches. 

 It was mainly owing to this grass that w^e could not get our little 

 steamer through the great laguna on the Pilcomayo, and so were 

 compelled to abandon our voyage and return to Asuncion. It 

 choked the channel of the river with an impenetrable mass of vege- 

 tation. 



Panicum Crus-Galli, L., Sp. PL, 56. 



Pilcomayo River (963) ; Asuncion (743 and 539). January-May. 



Panicum demissiim, Trin., Sp. Gram., t. 319. 



Caballero (519). January. 



A small grass with very slender erect or nearly prostrate stems 

 8-12 cm. high. Leaves l-2cm. long, lanceolate, acute. Spikelets 

 in a loose, spreading, terminal panicle 1^-3 cm. long, each on a 

 pedicel 3-t mm. long. 



Panicum glutinosum, Sw., Prod., 24. 



Caballero (405 a). January. = Balansa 1. 



Apparently so named because the roots are tubercled and glutin- 

 ous, causing the sandy soil in w^hich the plant grows to adhere to 

 them. The inflorescence and general appearance of the plant much 

 like those of our P. virgatum. This, however, grows in shady 

 woods. 



Panicum insulare (L.), Meyer, Fl. Esseq., 60. 



P. leucophceum, H. B. K., i, 97. 



Asuncion (176); Pilcomayo River (983). November-April. 



Panicum latifolium, L., Sp. PL, 58. 



Asuncion (755, 780, and 641) ; Pilcomayo River (1569). January- 

 April. 



This is a very different plant from the species commonly called 



