406 



Minnesota Plant Diseases. 



Cats, fungi on, 73 



Cattle, fungi on, 73 



wounds caused by, 47 



Cauliflower, 



black rot of, 34^ 



sterile-fungus rot of, 329 



Cause, immediate, of disease, 2 



Cedar apple, of red cedar (Figs. 

 181, 182), 347, 348, 349 



rusts of, 1 60, 164, 1 66 



Cedar, red, 



bird's-nest broom of, 165 



bird's-nest rust of, 350 



Cedar, white, 



Jews' ear on, 167 



Celery, 



leaf blight of, 328 



sterile-fungus rot of, 329 



Cells of wood tissues, 85 



Cellulose, in cell walls, 85 



Cercospora apii, 328 



beticola, 328 



violae, 381, 382 



Cereal rusts (see rust of wheat). 



Cereal smuts, 158 



Cereals, rust-proof varieties, 289 



Chsetomiaceae (Fig. 60), 136, 137 



Cheese, bacteria in, 196 



green mold on, 118, 122 



Cherry, 



black knot of (Fig. 191), 



135, 136, 358, 359, 36o 

 broom on, 56 



brown rot of, 357 



leaf rust of, 350 



pockets of, 120, 361 



powdery mildew of (Fig. 



192), 360, 361 



scab of, 363 



stunting by pocket fungi, 82 



witches'-broom of, 121, 271, 363 



Chickens, parasites on, 73 



Chickweed, rust of balsam fir, 278 



Chlorosplenium seruginosum, 267 



Chondrioderma difforme (Fig. 



i oo), I 97 



Chrysanthemum, powdery mil- 

 dew of, 379, 380 

 rust, 371, 372 

 Chrysomyxa pirolse, 386 

 Chytridinese (Fig. 41), 104, 105 

 Cladosporium carpophilum, 363 

 Clamps, hose (Fig. in), 228 



Clams, parasites of, 67 



Classification of diseases, i 



Clavaria, species of (Fig. 83), 173 

 rots of wood, 244 



Clavariaceae (Fig. 83), 172, 173, 174 

 Claviceps purpurea (Figs. 154, 



155). 306,307,308,309 



Cleanliness in prevention of 



spread, 207 



Clover, bacterial nodules of, 195 



black mold of (Fig. 153), 305 

 cup fungi on, 145 



cup fungus leaf spot, 309, 310 

 damping-off, 109, 382 



dodder on, 200 



downy mildew of, 112, 314 



leaf rust, 292 



leaf spot of, 309, 310 



rotation of crops and bac- 

 teria, 196 

 rusts, 166 

 Clothes, mildew of, 43 

 Club fungi (Fig. 83), 172, 173, 174 

 earth-dwelling habit, 39 

 edible forms, 174 

 fruiting bodies, 23 

 rots of wood, 244 

 Club root of cabbage, radish, 



etc. (Figs. 179, 180), 345,346 



Club root of beets, 198 



Club rust of juniper, 349, 350 



Cluster-cup, 



of ash-leaf (Figs. 75, 76), 



162, 163 



rust of composites, 387 



rust of gooseberry and cur- 

 rant, 317, 386, 387 

 rusts of wild flowers, 386 

 Coal spot diseases, 151 

 Coccus, a bacterial form, 190 

 Coelenterates, parasites of, 66 

 Coffee rusts, 166 

 losses by, 201 

 Coleosporium sonchi-arvensis 



(Fig. 205), 376, 388 



Collards, black rots of, 342 



Colletotrichum lindemuthianum, 327 

 Collybia rot, velvet stemmed 



(Fig. 130), 264,265 



Collybia velutipes (Fig. 130), 



264, 265 



Colorations of bacteria, 194 



Columbines, rust of, 386 



