BARLEY 137 



(HORDEUM DISTICHUM NIGRICANS, SER.) 



3. Spikes black, awns rough. 



Spring Abyssinian Black, Roumanian Black, Smyrna 

 Black, Vilmorin, Egyptian Black, Arabian Black. 



(HORDEUM DISTICHUM PERSICUM, KCKE.) 



4. Spikes black, awns smooth. 



Spring Erivan, Persian Black. 



(HORDEUM DISTICHUM ERECTUM, SCHUBL.) 



5. Spikes pale yellow, thick, broad. 



Spring Archer, Brewers Favorite, Diamond, Goldthorpe, 

 Imperial, Plumage, Primus, Standwell, Swan Neck. 



(HORDEUM DISTICHUM ZEOCRITHUM, LlNN.) 



6. Spikes pale yellow, narrowed toward the apex, awns spreading, 

 fan-shaped. 



Spring Fan barley or Peacock barley. 



(HORDEUM DISTICHUM NUDUM, LlNN.) 



7. Spikes pale yellow, kernels hidless. 



Spring McEwan or Tibetan or Two-row Hulless or Coffee 

 barley. 



127. Deficient barley (Hordeum distichum deficiens, 

 Steud.). The groups of barley just described come well 

 within the limits of definition of the subspecies, and are 

 therefore groups of normal two-row barley. There are 

 certain groups, however, that are lacking still further in 

 parts of the floral organs of the side spikelets, these flowers 

 either lacking both sexual organs, or being entirely want- 

 ing. To this section, deficiens, belong two groups of 

 forms cultivated in Abyssinia, one having pale yellow 

 spikes and both having undivided glumes which are 

 largely grown to the spikelet axis (111). There are three 



