322 



INDEX 



Discomycetes, 69, 105 



Protection of sporophores of, 



against drought, 45 

 Disease-blotches, 88 

 Disease, Causes of, 4, 20 



determined by two factors, 8, 9 



Investigation of, 16 



and sickliness distinguished, 5 

 Diseases classified, 8 



due to soil, 270 

 Dodder, see Cuscuta 

 Dogwood, Nectria ditissima on, 92 

 Dormant eyes, 239 

 Draining, Effects of excessive, on 



alders, 270 

 Drawn shoots, 298 

 Drought, Effects of, on cereals, 272 



Leaves of conifers injured by, 1 1 1 



of Bark, 294 

 Dry-rot, 214 



fungus, 219 



see also Merulius lacrymans 

 Duramen, 33, 44 

 Dust-brand, 68 



Echium, ^Ecidium asperifolii on, 156 



Egg-spores of Perpnosporese, 58 



Elaeagneae, Tubercles on the roots of, 39 



Elaphomyces granulatus, 71 



Elm, Exoascus on, 135 



Endophyte defined, 42 



Endophytes, Mode of attack of, 50 



Engrafting, 228 



Entomology, Forest, an old study, 2 



Entomophthoreas, 57 



Enzyme, 11, 50 



Epicormic branches, 238, 253, 271 



Epidermis, 225 



Epiphyte defined, 42 



Epiphytes, Mode of attack of, 50 



Ergot, see Claviceps purpurea 



Erysiphe, see also Mildew 



Epiphytic character of, 42 



adunca, 70 



bicornis, 70 



guttata, 70 



pannosa, 70 



Tulasnei, 70 

 Erysipheae, 69, 70 

 Etiolation, 298 



Euphrasia, a partial parasite, 24 

 Even-aged woods specially liable to 



disease, I 



Evonymus, Caeoma on, 171 

 Exoascus, 131 



alnitorquus, 133 



aureus, 135 



Exoascus Betulae, 135 



borealis, 133 



bullatus, 133 



carnea, 135 



Carpini, 135 



caerulescens, 135 



deformans, 132 



epiphyllus, 133 



flavus, 133 



Instititias, 133 



Pruni, 131 



Sadebeckii, 133 



turgidus, 133 



Ulmi, 135 



Wiesneri, 132 

 Exobasidium Vaccinii, 185 

 Exotics, Acclimatization of, 288 

 Experiments in infection, 17, 18, 19, 



20 

 Eye-bright, a partial parasite, 24 



Factories, Refuse of, 281 

 Facultative parasites, 47 



saprophytes, 47 



Fagopyrum seedlings, Disease of, 58 

 Fagus, see Beech 

 Felling in summer and winter, 214 

 Ferments exuded by parasites, 50 

 Figures carved in bark, 246 

 Filaments, Truncated, of Erysiphe, 69 

 Fir, Douglas, as a protection against 

 pine-blight, 116 



Botrytis on, 130 

 in relation to drought, 12 

 Rhizina undulata on, 125 

 Scotch, see Pinus sylvestris 

 Silver, ^Ecidium columnare on, 

 161 



elatinum on, 179 

 Caeoma on, 184 

 Columnar rust of, 161, 184 

 Hysterium macrosporum on, 109 



nervisequium on, 108 

 Nectria Cucurbitula on, 89 

 Pestalozzia Hartigii on, 136 

 Phoma abietina on, 138 

 Rhizina undulata on, 125 

 TrichosphaL-ria parasitica on, 72 

 in connection with adventitious 



buds, 262 



Fire, Effects of, 300 

 Fistulina hepatica, 206 

 Flower-pots, Failure of plants in glazed, 



279 



Fly wood, 205 

 Frank's work, 4 

 Fraxinus, see Ash 



