116 A PLANT-DISEASE SURVEY Of TEXAS. 



Page. 



Cercospora spp. , occurrence on trees and shrubs in Texas 57, 



60-62. 64-65. 70-71. 73-80, 82, 109-111 



truck crops in Texas 34, 



37-10, 42. 43. 4.5-46, 109, 110. Ill 

 various (other ) plants in Texas . . 23. 48-49. 51. 55, 109 

 wild plants in Texas. . 90-97. 99. 101-106. 109. 110. 112 



possible correlation with high temperatures 23 



Cercosporella spp. . occurrence on plants in Texas 74. 95,. Ill 



Cereals, culture and diseases in Texas 46-47 



See also names of different cereals; as. Corn, Oats, etc. 



Cherry, ground, occurrence of leaf-spot in Texas 96, 110 



nonoccurrence in region studied in Texas 19 



China aster. See Aster, China. 



tree, umbrella. See Tree, umbrella China, 

 wild. See Tree, wild China. 



Chlorosis, occurrence on fruit trees in Texas 24, 29, 30 



trees and shrubs in Texas. . . 57. 58, 61. 63. 65. 70. 75. 77. 79, 82 



truck crops in Texas 35-37, 41. 42. 45 



various 'Other I plants in Texas 22, 



49. 52. 56. S6. 87, 90. 92. 97. 100, 103, 105 



Chrysanthemum spp. . diseases in Texas 84. 85. 109 



Cicinnobolus spp.. presence on powdery mildew of standing cypress in Texas. . 88 

 Citrullus vulgaris, See Watermelon. 



Citrus spp., culture and diseases in Texas 19. 27-25. 109 



Cladosporium spp., occurrence on plants in Texas 18,28,47 



Clasterosporium difrusum. occurrence on the pecan in Texas 76, 111 



Clematis drummondii. See Virgin 's-bower. 



Climate, character in region studied in Texas 15-18, 22-23 



Clinton. G. P.. on diseases of plants 36. 107 



Cloudy days. See Sunlight. 



Clover, bur, use as forage crop in Texas 21 



Carolina, occurrence of rust in Texas 91 



Cocklebur, diseases in Texas 91-92, 109 



Coleosporium vernoniae, occurrence on fireweed in Texas 95 



Collection of specimens of plant diseases. See Specimens. 



Colletotrichum spp.. differentiation of certain forms 36. 52. 54 



occurrence on grasses in Texas 51—52. oo. 54. 110, 111 



trees and shrubs in Texas. . . 27-28. 67. 68. 110, 111 



truck crops in Texas 34-36. 39. 40. 41. 43. 110 



Colocasia esculenta. See Elephant "s-ear. 



Columbine, diseases in Texas . . S5 



Commelina virginica. See Dayflower. 



Coniothyrium spp., occurrence on plants in Texas 66, 71. 88 



Convolvulus hermanioides, occurrence of white-rust in Texas 92 



Cook, O. F.. on vegetation of Texas 22, 107 



Cooke, M. C, on diseases of plants 11. 39. 107 



Cooperia drummondii. See Lily, rain. 

 Coral bead. See Bead, coral. 



Corn, Indian, culture and diseases in Texas 21. 46 



Kafir, cultivation and diseases in Texas 21. 53 



Cornus sp. See Dogwood. 



Corticium spp., occurrence in Texas 39, 41. 42. 43. 44. 57. Ill 



Cotton, culture and diseases in Texas 21. 54-57, 111 



226 



