INDEX 



321 



Cercospora acerina, 135 



a facultative parasite, 47 

 Resting-mycelium of, 43 

 Cereals, Puccinia coronata on, 1 56 



Rust of, 155 

 Champignon blanc, 82 

 Chermes abietis, 144 

 Fagi, 96 



Laricis, 118, 169 



Cherry, Black-knot of, 103 



Gnomonia on, 88 



Valsa on, 88 



Bird, see Prunus Padus 



Wild, see Prunus avium 

 Chestnut, Horse, Nectria cinnabarina 

 on, 96 



Spanish, see Castanea vesca 

 Chlorine, Effects of, on vegetation, 



302 

 Chrysomyxa, 175 



abietis, 13, 153, 175, 177 



Ledi, 49, 179 



Rhododendri, 9, 49, 177 

 Chytridiaceas, 57 



Cinchona bark, Cultivation of, 230 

 Clarkia seedlings, Disease of, 58 

 Claviceps purpurea, 98 



Sclerotia of, 43 



Clematis vitalba, Casoma on, 166 

 Climatic predisposition to disease, 



10 

 Clover, Dodder on, 34 



Peziza ciborioides on, 130 



Red, Orobanche minor on, 25 

 Club-root, 39 

 Coal-brand, 68 



Smoke, 300 



Cockchafer grubs, 147, 264 

 Coleophora laricella, 117 

 Coleosporium Euphrasiae, 172 



Senecionis, 153, 172 



Tussilaginis, 172 

 Conidium, 45 

 Conifers, Agaricus melleus on, 207 



Hysterium on, 107 



Mycelium on the roots of, 71 



Polyporus Hartigii on, 194 

 vaporarius on, 198 



Rhizina undulata on, 123 



Seedlings, Disease of, 58 



Withering of the leaves of, 112 

 Coniothyrium diplodiella, 103 

 Coppicing, 261 

 Cork, 226 



" Wound," 227 

 Cortey, 225 



Roots, 26 



Corticum amorphum, 1 1 7 

 Corylus, see Hazel 

 Cow- wheat, see Melampyrum 

 Cowberry, see Vaccinium 

 Cracks, Frost, 284 



Sun, 283, 294, 297 

 Cratasgus, Erysiphe guttata on, 70 



Exoascus bullatus on, 133 



Rasstelia lacerata on, 1 58 



Witches' brooms on, 133 

 Crickets, 147 

 Cronartium, 172 



asclepiadeum, 175 



rubicula, 175 



Crucifers, white-rust of, 66 

 Cryptogams, 35 

 Cryptorhynchus lapathi, 151 

 Cucurbitaria Laburni, 89 



morbosa, 102 



Sorbi, 88 



Cupressinoxylon, Agaricus on, 207 

 Cupuliferae, Mycelium on roots of, 71 

 Cuscuta Epilinum, 34 



Epithymum, 34 



europaea, 34 

 Cuscuteae, 33, 34 

 Cynips, 1 86 

 Cystopus candidus, 66 

 Cytisus Laburnum, Cucurbitaria on, 

 87 



Dasdalea quercina, 206 



Damping off of seedlings known to 



early writers, I 

 Deadening material, 217 

 Death due to external causes, 7 

 frost, 287 

 internal causes, 6 

 of animals, 6 



plants, cause of, 6 

 Natural and accidental, 6 

 Natural, discussed, 6 

 Debility of old age as a factor of 



disease, 7, 8, 1 1 

 Deer, Fallow, Barking by, 241 

 Red, 241 



Roe, 241 



Defoliation by insects, 268 

 Demarcation, Line of, between scion 



and stock, 267 

 Dematophora necatrix, 43, 82 



an example of mycelial infection, 



48 

 Development dependent on variation, 



Didymosphasria populina, 104 

 Y 



