26 



Fig. 20. HILARIA JAMESII (Torr. j Benth. Journ. Linn. Soc. 19 : 62. 1881. 

 {Pleuraphisjamesii Torr. Ann. Lye. N. Y. 1 : US. t. 10. 1824.) BLACK BUNCH- 

 GRASS.— A rather coarse, branching perennial 3-5 dm. (12'-20') high, with 

 erect, often purplish spikes 5-8 cm. (2'-3i') long. Spikelets (a) 8-10 mm. (4"-5") 

 long, hairy at base. Staminate spikelets {b) 2-flo\vered: empty glumes 5-nervec 

 the outer'with an awn from the back longer than the spikelet, the innev 

 unawued.— Mesas and table-lands of southern Colorado and Utah to New Mex- 

 ico and southern California. March to July. A valuable hay or pasture grass. 



