viii CONTENTS 



Chapter Page 



IX. SCHIZOMYCETES. BACTERIA I°3 



I. Bacteriaceae i°6 



II. Black Rot of Cabbage i°7 



III. Wilt of Sweet Corn m 



IV. Crown Gall of Apple, Peach, and Other Plants ... 1 14 

 V. Olive Knot, or Tubercle-Disease of the Olive . . . . 118 



VI. Bean Blight . . . 119 



VII. Hyacinth Disease . . ... 120 



VIII. Bundle Blight of Sugar Cane 120 



IX. Pseudomonas: Other Species 120 



X. Pear Blight 121 



XI. Wilt of Cucurbits 129 



XII. Soft Rot of Carrot and Other Vegetables 131 



XIII. Soft Rot of the Calla 133 



XIV. Wilt of Solanaceae . . 134 



XV. Bacillus: Other Species . . . .... . . 134 



X. Phycomycetes . . 135 



I. Chytridiales 136 



II. Synchytriaceae . .... 136 



III. Cranberry Gall 138 



IV. Pycnochytrium Globosum (Schroet.) Schroet 139 



V. Chytridiales: Other Species .... .... 139 



VI. Saprolegniales .... 140 



VII. A Damping-off Fungus 141 



VIII. Brown Rot of the Lemon 144 



IX. Peronosporales 147 



X. White " Rust " of Crucifers 149 



XI. Cystopus : Other Species 152 



XII. Downy Mildew of the Grape 152 



XIII. Downy Mildew of the Cucumber 158 



XIV. Sclerospora 161 



XV. Downy Mildew of Crucifers ... 161 



XVI. Onion Mildew 162 



XVII. Peronospora: Other Species ... 164 



XVIII. Downy Mildew of the Lettuce 164 



XIX. The Late Blight and Rot of the Potato . . . 165 



XX. Downy Mildew of Lima Beans . . . 171 



XL Ascomycetes . . ... . . 174 



I. Exoascaceae 175 



II. Peach Leaf Curl .... 176 



III. Plum Pockets 183 



IV. Witches' Broom of the Cherry 185 



V. Helotiaceas 185 



VI. Sclerotinia 186 



