INDEX. 79 



Elm, mildew injury [g 



mistletoe injury I ; ( 



slime-flux injury _• 1 



white-rot, susceptibility Is 



Environment, influence on prevalence of while heart-rol 



Europe, investigations of effects of sulphur fumes on vegetation 10. 1 1. 12 



Fagus spp. See Beech. 



False-tinder fungus. See Fomes igniarius. 



Fence posts, decay caused by Polystictus versicolor 



Flux, slime, diseases, description 



Fomes applanatus, cause of sap-rot of cottonwood v 



habits 



everhartii, cause of heart-rot of oak, description and sporophores 18,74 



fomentarius, description and injury to trees 50-51, 74 



fraxinophilus, cause of white heart-rot of ash, description, etc 16-47 



sporophores, description It; 



fulvus, cause of red heart-rot of birch, description 17 



destruction of olive trees in Italy 17 



igniarius, distribution, description, growth, and prevention 27-37, 7 1 



effect on wood structure : I 1 35 



fungus causing white heart -rot 25 37 



sporophores, formation 



synonymy 



nigricans, description, growth habits, and injuries to tree- 42-44 



sporophores, description and growth 



rimosus, cause of black locust disease, description and growth 15 W 



sporophores, growth and appearance 45 16 



Forest trees. See Trees, forest. 

 Fraxinus spp. See Ash. 



Freeman, E. M., reference to work 19 



Fruit trees. See Trees, fruit. 



Fungi, beneficial, development, effect of soil conditions 



causing leaf diseases I s - • 



sap-rot through tree wounds, description 



disease-bearing, classification 



growing on dead wood 31,38, 12, 



leaf-blister, injuries to trees 



miscellaneous, causing diseases of trees 



root-rotting, description and effects 



sap-rotting, resembling Polystictus versicolor and P. pergami 



saprophytic 



cause of decay in structural I imber 



soil, development, effect of soil conditions 



wound, causing diseases of forest trees 



Fungus, coral, causing white-rot, description, growth, etc 



false-tinder. See Fomes igniarius. 



micorrhizal, development, effect of soil conditions 



tinder, description and injury to trees 



transmission from oaks to fruit trees 



Gas condensation a preventive of injury to vegetal ion 



injury, preventive methods 



Gases, sulphur, injuries to trees 



Gloeosporium nervisequum, cause of sycamore leaf-blig] I 

 7Q1F.9 pini i4Q — on a 



