MANUAL OF THE GRASSES OF THE UNITED STATES 



461 



39. Aristida condensata Chapm. (Fig. 996.) Perennial; culms 

 rather robust, a meter or more tall; blades firm, 

 flat, becoming involute, elongate, 2 to 3 mm 



Figure 995.— Aristida tenuispica, Figure 996.— Aristida condensata, X 1. 

 X 1. (Tracy 7104, Fla.) (Chapman, Fla.) 



Figure 994.— Aristida mohrii. 

 X 1. (Mohr 53, Ala.) 



wide; panicle narrow, as much as 30 cm long, 

 the branches 5 to 10 cm long, ascending, closely 



flowered; glumes equal, 8 to 9 



mm long; awns equal, divergent, 



10 to 15 mm long, the base more 



or less contorted, finally forming 



a loose spiral. % — Sandy pine 



or oak barrens, Georgia, Florida, 



and Alabama, on the Coastal 



Plain. 



40. Aristida gyrans Chapm. 



(Fig. 997.) Perennial; culms 



erect, slender, 40 to 70 cm tall; 



blades involute, 10 to 15 cm long, 



1 mm wide; panicle slender, rather 



lax, 15 to 30 cm long, the branches 



appressed, not at all or only slight- 

 ly overlapping, bearing mostly 1 



to 3 spikelets; first glume 7 to 8 



mm long, the second 10 to 11 mm 



long; lemma about 6 mm long, 



the callus 1.5 mm long, sharp; 



awns equal, divergent, 1 to 1.5 cm 



long, about equally contorted at 



base in a loose spiral. % — Dry sandy soil, Georgia and Florida. 



FiGr 



—Aristida gvrans, X 1. (Combs 12S9, 

 Fla.) 



