22 A Handbook of Nebraska Grasses. 
ORYZEAE. 
FIG, PAGE 
1. Upper spikelets pistillate, some long-awned; lower 
spikelets staminate, awnless....Zizania aquatica 31 94 
iL, Spikelets all alike and awnless...=-42c. eee Z 
2. Spikelets 2.5-3.0 mm. long....Leersia virginica 31 88 
2. Spikelets 4-5 mm. long....... Leersia oryzoides 31 88 
Figure 31. 

Aizania aquatica. Leersia virginica. Leersia oryzoides. 
