GRASSES OF IOWA. 



131 



the Roman empire. That its culture is very ancient with the 

 Kelts is shown by the fact that the inhabitants of the Orkney 

 and Shetland islands have long used it. 



Fig. 69 O. Oats, (Prom Iowa Seed Co.) 



Sorghum and Kafir corn. {Andropogon sorghum) Brot. — The 

 original home of Andropogon sorghum is tropical Africa where 

 durra is cultivated. It is frequently cultivated in Asia, but 

 Linnaeus supposed it to be of Indian origin. It certainly was 

 not cultivated anciently there, since there are no ancient names 



