Plants Collected in Paraguay, 269 



dm. long, glabrous, sulcate, the margins setulose-rough ; sheaths 

 glabrous or a little pilose at the mouth, as long as the blades ; 

 nodes 2 or 3. Panicle at first enclosed in a foliaceous bract as long 

 as itself, the largest 8 dm. long and 6 cm. broad, tapering to an 

 acuminate apex, more or less nodding; branches very numerous and 

 crowded, simple or compound. The 2 lower glumes silvery-white, 

 papyraceous, 1-nerved, 3 or 4 mm. long, apicfhlate, much surpassed 

 by the setae of the palets. Lower palet divided into about 13 setae. 

 Caryopsis elliptical. A fine grass, the long silvery-white panicles 

 very showy. 



Andropogon condensatus, H. B. K., Nov. Gen., i, 188. 



Asuncion (206). November-December. 



Common in old fields at Asuncion. Culms rigid, about 1 m. high. 

 Panicle spreading widely at the summit, 10-15 cm. long. Racemes 

 much exserted from the spathes. Flowers white and fleecy. 



Andropogon lateralis, Nees, Agrost. Bras., 329. 



Asuncion (230). December. 



A harsh slender-stemmed grass, 10 or 12 dm. high. The flowers 

 are borne along the stem at intervals in small, long-peduncled pani- 

 cles, 2-3 branched. Spikes 4-6 cm. long. Hairs on the spikelets 

 rather scanty. Awns twisted at the base, slender, bent about \ of 

 the way up. The culms are caespitose, with a tuft of short leaves 

 at the base. 



Andropogon leiicostactiys, H. B. K., Nov. Gen. i, 187. 



Caballero (469). January. = Balansa 2t9. 



Regarded by Hack el as a form of A. Virginicus, L., but differing 

 in having much longer spikelets and with shorter hairs on the cal- 

 lous base of the first glume. It seems to me also to have much 

 larger panicles and longer racemes. Usually 3-4 panicles of fleecy 

 flowers at long intervals on the stem. Culm 4-5 dm. high. Com- 

 mon on the open campo around Caballero and Villa Rica. 



Andropogon JUinaruin (Nees), Kunth, Enum., i, 507. 



Between Villa Rica and Escoba (488 a). January. 



Culms rather stout, 5-9 dm. high. Panicle densely spiked, oblong- 

 ^bovate, 12-28 cm. long and 4 or 5 cm. broad, the branches some- 

 what verticillate. Distinguished by its chestnut-colored, twisted, 

 hairy awns, 4-6 cm. long. These are very conspicuous, and seem 



