16 



Fig. 312. Andropogon gracilis Rprenn;. Svst. 1:2S1, not 

 Presl. Si.KXUEK Bkoo.m SKixiii.— A slender, erect perennial 3 t<> 

 4 dm. high, with tliread-like leaves 10 to 20 cm. Ions arid termi- 

 nal, silky-hairy racemes 3 to 5 cm. long. Sessile spikelet (a) 4 to 

 6 mm. long, with tlie awn of the flowering glnme (<;) 13 to 19 nmi. 

 l,„,g_ — l)ry pine woods, Scmthern Flori<la. [West Indies.] Juue- 

 Angust. 



