GRASSES OF IOWA. 



331 



DESCRIPTION". 



Two Rowed Barley. Two to three feet (6-9 dm.) high, spikes 

 strongly compressed laterally, the sterile, lateral spikelets appressed to 

 the rachis, with or without stamens. Spikelets nodding or upright. 



DISTRIBUTION*. 



Iou'a. Lyon County (Shimek). 



North America. Cultivated in northern United States. 

 General. Cultivated in Europe and Asia, and temperate regions 

 generally. 



2. HORDEUM VULGARE. 



Hordeum vulgare L. Scribner. Grasses of Term. Bull. Univ. Term. 

 Agrl. Exp. Sta. 7: 125. 1894. 



Fig. 234. Left, two-ranked barley; Hordeum distlcTwn. Right, common 

 four-rowed barley; Hordeum vulgare; b, bl, t>3, spikelet; kl, fruit; f. pi3tils and 

 stamens. (Hackel. ) 



