x DISEASES OF TROPICAL PLANTS 



I' 10. PAGE 



30. Section of cane leaf, showing perithecium of Leptosphaeria sacchari. 



Also two mature asci and three mature spores . . .50 



31. Mycosphaerella gossypina of the cotton. Conidial stage . . 51 



32. Melanconium state of Tricosphaeria sacchari . . . .52 



33. Cross section through coffee leaf, showing fruiting body of Cercospora 



coffeicola and detached spores . . . . .55 



34. Conidiophores and spores of Fusarium species . . . .56 



35. Marasmius sacchari of the sugar-cane . . . . .66 



36. Tree attacked by mistletoe ...... 69 



37. Sugar-cane affected with red rot . . . . .80 



38. Sugar-cane affected with ' rind disease " . . .82 



39. Sugar-cane affected with " pine-apple " disease . . .84 



40. Leaves of sugar-cane affected with ring-spot disease . . .88 



41. Mature specimen of Ithyphallus ..... 91 



42. Sugar-cane affected with Marasmius sacchari . . . .93 



43. Sugar-cane affected with Marasmius sacchari . . . .94 



44. Ear of corn destroyed by smut ...... 96 



45. Ears of Pennisetum typhoideum affected by Sclcrospora graminicola . 98 



46. Rice affected with the blast disease . . . . .100 



47. Germinating rice grain affected with the blast disease . . .104 



48. Cotton plant affected with wilt . . . . .107 



49. Cotton bolls affected with anthracnose . . . . .111 



50. Cotton leaves affected with leaf blight . .... 112 



51. Lemon twigs affected with wither tip, Colletotrichum gloeosporioides . 116 



52. Limes affected with anthracnose, Colletotrichum glocosporioides . 117 



53. Leaves of lemon affected with scab, Cladosporium citri . . 119 



54. Lemons affected with Penicillium rot . . . . .127 



55. Lemon affected with brown fruit rot . . . . .128 



56. Banana affected with ripe fruit rot . . . . .135 



57. Leaf of fig affected with rust, Urcdo fid . . , .138 



58. Twigs of fig affected with Tubercularia fici . . . .139 



59. Limb blight of fig, Corticium laetum . . . . .141 



60. Fruit rot of the fig, Glomerella rufomaculans .... 142 



61. Soft rot of the fig, PJiizopus nigricans . . . . .143 



62. Tobacco seed bed ..... 150 



63. Tobacco plants affected with nematodes . 151 



64. Tobacco field destroyed by Granville tobacco wilt . 156 



65. Tobacco plant affected by Granville tobacco wilt . 157 



66. Tobacco plants affected with broom rape . 158 



67. Tobacco plants affected with broom rape . 159 



68. Coffee leaves affected with leaf spots, Cercospora coffeicola . .164 



69. Coffee berries affected with spot, Cercospora coffeicola . 165 



70. Coco-nut trees affected with bud rot ... 199 



