A Handbook of Nebraska Grasses. 17 
FIG, PAGE 
4. Glumes awned......... Behinochloa crus-galli 22 8) 
4. Glumes not awned...... Paspalum stramineum 22 90 
Figure 22. 

Echinochloa crus-galli. Paspalum straminenm. 
5. Spikelet surrounded by thickened spines.......... 
oP Oe Oe Pe eee ee Cenchrus tribuloides 23 83 
5. Spikelet surrounded by bristles................. 6 23 18 
Figure 23. 

Cenchrus tribuloides. 
for) 
