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 47 1 



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 4^3 



GENERAL INDEX 499 



