268 Plants Collected in Paraguay. 



awned, the awn delicate, bent at the summit, the lower half chest- 

 nut-colored like the palet, and white above. 



On the campos between Villa Rica and Escoba. 



Sacdiariiin Cayeimense (Beauv.), Benth., Jour. Linn. Soc, xix, %Q. 



Between Caballero and Escoba (417). January. 



Culms stout, lf-2j m. high, yellowish, shining, glabrous, except 

 at the joints, which are enclosed in a ring of long white hairs. 

 Leaves linear, 2-3 cm. long, 6-8 mm. wide, fuscous pubescent on 

 both sides, strongly nerved, midnerve large, becoming 5 or 6 cm. 

 long above. Sheaths longer than the blades, pubescent above. 

 Panicle spiciform, nearly cylindrical, interrupted, 10-25 cm. long, 

 about 2 cm. wide. Branches 1-2 cm. or less in length, glomerate, 

 densely crowded, solitary or 1-3 branched, the racemes subglobose. 

 Spikelets about 4 mm. long. Glumes 4, the outer one oblong, 

 white, shining, coriaceous, densely ciliate at the base and apex and 

 on the margins with rufous hairs longer than the spikelet, indis- 

 tinctly 3-4-nerved near the apex ; the other glumes chartaceous 

 and smaller, the second slightly pilose. One of the most interest- 

 ing grasses in Paraguay. The long, fluffy, bronze-colored, soft and 

 velvety haired panicle is exceedingly beautiful. In bogs near the 

 railroad track between Escoba and Caballero. 



SacctiaruiU liolcoides (Nees), Hack, in Mart. Fl. Bras., ii, pt. 3, 254. 



Luque (321). December. 



This species differs from the preceding more in habit than in the 

 floral characters. Culms slender, glabrous, fringed with a ring of 

 white hairs at the joints, about 6 dm. high, with 2 or 3 nodes. 

 Leaves shorter than the culm, glabrous, except on the upper mar- 

 gins of the sheath, revolute. Panicle flattish, not cylindrical, 8-12 

 cm. long; branches 2-3 cm. long, simple or nearly so, spreading. 

 Spikelets 4 mm. long, ciliate with bronze-colored hairs like no. 417, 

 but the hairs not so dense and shorter than the spikelet. Outer 

 glume bare of hairs on the back, pointed and minutely bidenticulate 

 at the apex, with 4 green nerves which run the whole length of the 

 glume. Near wet rocks with the water dripping upon it from above. 



Some of this was distributed as S. Cayennense. 



Pappopliorum macrostacliyiiiii, Schrad. in Scliultes Mant., ii, 

 342. 



Pilcomayo River (1071). April. 



Culms stout, sulcate, glabrous, 10-15 dm. high. Leaves 4J-7 



