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 m— Aristida mohrii, wide; panicle narrow, as much as 30 cm long, 

 x i. (Mohr 53, Ala.) ^ ie 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 Figure 997.— Aristida gyrans, X 1. (Combs 1289, 



long, about equally contorted at 



base in a loose spiral. 01 — Dry sandy soil, Georgia and Florida. 



