Plants Collected in Paraguay. 26 1 



P. latifolium in this country, which should be P. Walteri, Poir. 

 It is really a cane, often growing 3 or 4 m. high, the culm with 

 hollow joints, glabrous, and nearly as thick as the thumb, with a 

 dark ring at the joints, leaning downwards at the summit. Leaves 

 rounded and with a tuft of silky hairs at the junction with the 

 sheath, lanceolate, long acuminate, 6-15 cm. long, 1-3 cm. broad 

 in the middle, more or less pubescent on the blade and sheaths. 

 Panicle with divergent lateral branches, 5-20 cm. long. Spikelets 

 solitary on short pedicels, 3 or 4 mm. long, the lower empty glume 

 half as long as the upper, puffed outwardly as if inflated, 5-nerved, 

 the upper as large as the flowering glume, 5-Y-nerved, both glumes 

 with a tuft of down at the apex. The fruit when ripe becomes 

 perfectly black, very smooth and shining, and dropping off at a 

 touch. A striking plant, occurring usually in swampy thickets. 



Paniciim laxiliu, Sw., Prod., 23. 



Gran Chaco near Asuncion (537) ; Pilcomayo Iliver(977). March. 



A delicate weak-culmed grass 1-1^ m. high. Panicle loose, 25 

 cm. or more in length. Spikelets hardly 1 mm. in length, loosely 

 strung along the capillary rachis ; the glumes whitish ; pedicels 

 hardly 1 mm. long. Wet places in woods. 



Paniciim megiston, Schultes, Mant., ii, 248. 



Gran Chaco near Asuncion (813) ; Pilcomayo River (1072). 

 October-June. 



A fine grass, growing with stout, glabrous culms, 1-lj m. high. 

 Stem leaves 10-15 cm. long, 18-28 mm. broad, tapering to a sharp 

 acuminate apex, sparsely hairy and rough on the sheaths with 

 minute tubercles. Panicle 3-4 dm. long, 5-18 simple, drooping 

 branches rising together in whorls from the main rachis and 10-12 

 cm. in length. Spikelets solitary or 2 or 3 together, about 3 mm. 

 long, sessile or on minute pedicels, strung along on the rachis at 

 some distance from each other. ITpper empty glume as large as the 

 flowering glume, strongly 5-7-nerved. Occurs in deep woods or on 

 their borders, and forms a most excellent pasturage grass for cattle. 



Panicuiii JViimidiaiium, Lam., Encyc, 49. 

 P. barbinode, Trin., Act. Petrop., 1835, p. 256. 



Asuncion (779 a). 



This species is more common in Brazil than in Paraguay, It is 

 cultivated in fields at Asuncion under the name Paja Angora, 



