CONTENTS ix 



Chapter Page 



XI. Ascomycetes {Continued) 



VII. Brown Rot of Stone Fruits 187 



VIII. Gray Mold, or Botrytis Disease 196 



IX. Lettuce Drop 198 



X. Stem Rot of Clover 20 1 



XI. Larch Canker 202 



XII. Mollisiaceae . . . 203 



XIII. Alfalfa Leaf Spot 203 



XIV. Anthracnose of Currants . . 204 



XV. Phacidiaceae . .... 207 



XVI. The Black Spot of Maple 208 



XVII. Perisporiales 209 



XVI 1 1. » Perisporiaceae 209 



XIX. Root Rot of Tobacco, Violets, Peas, Lupines, etc. 210 



XX. Sooty Mold of Orange .... ... 213 



XXI. Erysiphaceae ... 215 



XXII. The Gooseberry Mildew ... . . 221 



XXIII. Mildew of Peach. Rose Mildew . . 224 



XXIV. Mildew of Apple and Cherry 226 



XXV. Powdery Mildew of Peas 227 



XXVI. Mildew of Composites and Other Plants .... 228 



XXVII. Mildew of Woody Plants 228 



XXVIII. Powdery Mildew of Grape 229 



XXIX. Powdery Mildew of Willow and Poplar .... 230 



XXX. Common Mildew of Trees . . ... 231 



XXXI. Hypocreaceae . . . 232 



XXXII. Wilt Disease of Cotton, Cowpea, and Watermelon . 233 



XXXIII. A Canker of Woody Plants 239 



XXXIV. European Apple Canker 242 



XXXV. Stem Rot of Sweet Potato and Eggplant . 243 



XXXVI. Ergot 244 



XXXVII. Dothidiaceae 248 



XXXVIII. Black Knot of Plums and Cherries 248 



XXXIX. Sphasriales 253 



XL. Black Rot of Grapes 254 



XLI. Cranberry Scald .... 259 



XLII. Leaf Spot of Strawberry 261 



XLIII. Leaf-Spitting Blight of Sugar Cane . .... 263 



XLIV. Apple Scab and Pear Scab 264 



XLV. Bitter Rot of the Apple and Other Fruits . . . . 271 



XLVI. Anthracnose of Sycamore .... .... 278 



XLVII. A Disease of Young Oaks 280 



XLVIII. Bark Disease of Chestnut 281 



XLIX. Blister Canker of Apple 282 



