LIST OF ILLUSTRATIONS. 



BORAGE BLIGHT. 



FIG. PAGE 



70. Leaf of Tuberous Comfrey, Symphytum tuberosum, 



L., invaded by ^Ecidium asperifolii, Pers., natural 

 size. ^Ecidium cups, x 10 144 



71. ^cidium asperifolii, Pers. Single cup x 50 ; spore, 



xlOOO 145 



CORN MILDEW SUMMER RUST AND MILDEW. 



72. Fragment of leaf invaded by Uredo linearis, Pers., 



x3 148 



73. Pustules or sori of Uredo linearis, Pers., x 25 . 148 



74. Transverse section through half a pustule or sorus 



of Uredo linearis, Pers., x 200 . . . .149 



75. Spores of Uredo linearis, Pers., x 1000 . . .150 



76. Two spores of Uredo linearis, Pers., germinating on 



a fragment of the epidermis of a wheat leaf, 

 x400 151 



77. Fragment of wheat stem invaded by Puccinia 



graminis, Pers., x 5 . . . . .153 



78. Pustules or sori of Puccinia graminis, Pers., x 25 . 153 



79. Transverse section through half a pustule or sorus 



of Puccinia graminis, Pers., x 200 . . .154 



80. Teleutospores of Puccinia graminis, Pers., x 1000 . 155 



81. Teleutospores of Puccinia graminis, Pers., ger- 



minating and producing pro-mycelium spores, 

 xlOOO 156 



BARBERRY BLIGHT. 



82. Barberry leaves invaded by sEcidium Berberidis, 



Pers. Natural size . . . . . .160 



83. Section through a Barberry leaf, showing the cups 



of ^Ecidium Berberidis, Pers., below, and the 

 spermogones above, x 50 . . . . .161 



84. Section through a cup of ^Ecidium Berberidis, Pers., 



x!50 163 



85. Section through a spermogonium of ^Ecidium Ber- 



beridis, Pers., x 300 165 



