CONTENTS 



Xlll 



tain oat district, 102 ; North Pacific oat district, 103 ; 

 South Pacific oat district, 104 ; Distribution in other 

 countries, 105. 



CHAPTER V 



BARLEY 115-146 



Description, 106 ; Roots, 107 ; Culms, 108 ; The 

 leaves, 109 ; Spikes or heads, 110 ; Spikelets, 111 ; The 

 flower, 112; Kernels, 113; Origin of barley, 114; 

 Present range, 115; Classification, 116; Atterberg's 

 group classification, 117; Erect six-row barley, 118; 

 Distinguishing characters, 119 ; Distribution, 120; Sub- 

 divisions of erect six-row barley, 121 ; Common barley, 

 122 ; Gjoups of common barley, 123 ; Intermediate or 

 hybrid barley, 124 ; Two-row barley, 125 ; Grouping and 

 distribution, 126 ; Deficient barley, 127 ; Distribution in 

 North America, 128; Northeastern or Six-row barley 

 district, 129 ; Southern or Winter barley district, 130 ; 

 Northwestern Plains or Two-row barley district, 131; 

 Southern Plains barley district, 132 ; Intermountain* 

 barley district, 133 ; Pacific Coast barley district, 134 ; 

 Distribution in other countries, 135. 



CHAPTER VI 



RYE 



147-159 



Description, 136 ; Roots, 137 ; Culms, 138 ; Leaves, 

 139 ; The spikes, 140 ; Spikelets, 141 ; The flower, 142 ; 

 The kernel, 143 ; Origin of rye, 144 ; Present range, 

 145 ; Classification, 146 ; Cultivated rye, 147 ; Distribu- 

 tion in North America, 148 ; Varieties, 149 ; Require- 

 ments of rye, 150 ; Distribution in other countries, 151. 



CHAPTER VII 

 CEREAI, IMPROVEMENT INTRODUCTIONS .... 160-178 



Mediterranean wheat, 152 ; Fife wheat, 153 ; Hard 

 winter wheats, 154; Turkey or Crimean wheats, 155; 

 Kubanka wheat, 156; Previous opposition to hard 

 wheats, 157 ; Introductions into Michigan, 158; Intro- 



