Smithsonian Report, 1937. — Kempton 



PLATE 21 





 ^f 



^*-^ 



1. FASCiATED Central spikes From 

 Three Corn Plants. 



Spikes of this sort suggest that multiple rows of spikelets 

 may have come about through the union of 4-rowed 

 branches. 



"r^' 





4- • ' 



M^^s^ 



2. AN 8-Rowed Ear of maize 

 showing bifurcation at 

 TIP Into Two 4- Rowed 

 Branches. 



Some authorities hold that the ear of maize 

 has been formed by the coalescence of 4- 

 rowed branches. (Natural size.) 



