MANUAL OF THE GRASSES OF THE UNITED STATES 



477 



gate, as much as 4 mm. wide; panicle 

 narrow, rather loose, as much as 40 

 cm. long; first glume 12 to 14 mm. 

 long, the second about 10 mm. ; lemma 

 8 to 9 mm. long; central awn horizon- 

 tally spreading or reflexed from a 

 curved base, 1.5 to 3 cm. long, the 

 lateral half to two-thirds as long, 

 erect or spreading. 01 — Dry sandy 

 soil of the Coastal Plain, New Jersey 

 and West Virginia to Florida and 

 Texas; Tennessee; Oklahoma and 

 Missouri. A slender form 65 cm. tall, 

 with fewer-flowered panicle, the 



Figure 699. — Aristida lanosa, X 1. (Canby, Md.) 



lemma 10 mm. long, the central awn 

 2.5 to 3 cm. long, has been differen- 

 tiated as A. lanosa var. macera Fern, 

 and Grisc. % — Cape Henry, Va. 



Figure 698. — Aristida fendleriana, X 1. (Coville 

 1089, Ariz.) 



Figure 700. — Aristida arizonica, X 1. (Rusby, Ariz.) 



29. Aristida arizonica Vasey. Ari- 

 zona three-awn. (Fig. 700.) Peren- 

 nial; culms erect, 30 to 120 cm. tall; 

 blades flat, narrowed to a fine invo- 

 lute point or some of them involute 

 throughout, 1 to 4 mm. wide, the old 

 ones usually curled or flexuous; pan- 



