14 A Handbook of Nebraska Grasses. 
FIG. PAGE 
7. Awn, if present, straight and arising at or near the 
apex of the’ lemma 22.2.2. s-e ee FESTUCEAE 16 
7. Awn always present, straight or twisted and arising 
midway between the base and the apex.. AVENEAE 16 

Figure 16. 
4 
FESTUCEAE. AVENEAE. 
ANDROPOGNEAE. 
1. Spikelets arranged ina panicles: 22... 2.3. 2 
1. Spikelets arranged in silky racemes.............. 3 
2. Pedicellate. spikelet’ wanting: -... 2-05.52... 
A. x aitgadeg ore oe Bee ee Sorghastrum nutans 17 
2. Pedicellate-spikelet. present... 2 2s25.25-0 ee 
5 at eP a EIEN we ce heer Andropogon halepensis 17 
Figure 17. 

Sorghastrum nutans. Andropogon halepensis. 3. 
t4 
59 

