xii CONTENTS 



CHAPTER PAGE 



XIV. PROTOBASIDIOMYCETES (Continued} 



XIX. Puccinia: Other Species 420 



XX. Gymnosporangium 422 



XXI. Cedar Apples and Apple Rust 425 



XXII. Gymnosporangium: Other Species 426 



XXIII. Orange Rust of Raspberry and Blackberry . . . 427 



XXIV. Rust of Roses 430 



XXV. Rust of Rhododendron and Norway Spruce . . . 432 



XXVI. The European Currant Rust ....'.... 433 



XXVII. Orange Rust of Aster and Golden-rod 435 



XXVIII. Rust of Poplar 437 



XV. AUTOBASIDIOMYCETES 439 



I. Exobasidiales 439 



II. Gall of Heaths 440 



III. Hymenomycetales 441 



IV. A Root and Stem Rot Fungus 444 



V. Heart Rot of Sugar Maple 452 



VI. White Rot of Deciduous Trees 453 



VII. Decay, or Brown Rot, of Trees 457 



VIII. Polyporus : Other Species 462 



IX. Fomes 464 



X. A Brown Rot of Conifers 467 



XI. Root Disease of Sugar Cane 469 



XII. Root Rot of Fruit Trees 471 



XIII. The Honey Agaric 473 



XIV. European Root Disease of Alfalfa and Other Plants 477 

 XV. Root Rot of Cotton and Alfalfa 479 



HOST INDEX 483 



GENERAL INDEX 499 



