169 



Fig. Kio. Sporobolus thurberi Scrihn. V. S. Dept. Ai^r. Div 

 Agros. I'.iill 11: 18. fig. 5. 1898. 'rini;i(KK"s Rish-grass. A 

 wleuder, \ (!ry laiu-li braiiclieil ;mil leafy i)ereiinitil !.."> to 2..^ dm. 

 high, from cicepiiig rootstrxks, with contiacteil, linear, loiig- 

 ixserted panicles 3 to 5 cm. long. Spikelets straw-colored, I to 5 

 mm. long. Flowering glume (b,c), are pilose for half their 

 length. New Mexico(?) 



