202 



INDEX 



Hum in wood, 92 ; mycelial 

 growth inhibited by bacteria, 

 111 ; paraphyses, 102* ; preven- 

 tion, 122 ; primary and secondary 

 rot, 116; pure cultures, 106; 

 red -rot, 88 ; resin, 87 ; rot re- 

 stricted by insoluble gum, 92; 

 secretions induced by, 87-92 ; 

 soil aeration, 119; soluble gum, 

 88 ; spores carried by rabbits, 

 113 ; spore ejection mechanism, 

 104 ; sterigmata, 103 ; treat- 

 ment, 188 ; turpentine, 87 ; two 

 methods of attack, 84 ; white 

 patches in *wood, 98 ; wounds 

 necessary for infection of live 

 roots, 114 



Fomes ulmarius, 80 



frost as a cause of wounds, 53 



fructifications of fungi, 5 



fungus, general account of, 3 



Fusoma parasiticum, 180 



CJeotropism of Fomes annosns, 104 

 gills, 146 



goutiness of larch trees, 85 

 gum, formation of, 28, 88, 91 



Hail, cause of wounds, 53 



Harper, A. f4., on abnormal wood, 

 31 



Hartig, R., on abnormal wood, 31 ; 

 Allescheria lands, 172; bio- 

 graphical note, 22 ; Fomes anno- 

 sus, 86 ; growth of canker in 

 summer and winter, 35 ; infec- 

 tion by Fomes annosm, 113 ; in- 

 fection theory criticized, 121 ; 

 larch canker', 22 ; Polyporns 

 mollis, 127 ; Polyporus sulphu- 

 rem, 138 ; Porim mporaria, 134 ; 

 Sphaerella laricinn, 168; Tra- 

 metes Pini, 146, 147 ; trenches at 

 Eberswalde, 122 ; work on tree 

 pathology, 24 



Hartigiella laricis, 172 



Heart-rot, caused by Fomes anno- 

 sus, 84-125 ; Polyphorits Schwei- 

 nitzii, 126-34; P. sulphnreus, 

 136-40, 165* ; Poria va-poraria, 

 134-6; Tr a metes Pini, 140-3; 

 detection of, 82 ; frequency in 

 first rotation, 116-22; fungi- 

 causing, 82 ; general, 80 ; gouti- 

 ness, 85 



Heterobasidion annosmn, 86 



heteroecious rusts, 173 



hetero trophic plants, 3 



Hill, A. W., on sieve tubes, 12 



honey fungus (see Armillnrin mcUeci) 



host, 5 



hymenium, oi Armillaria, 149, 150*; 

 Dasyscyplm, 37, 38*; Fames 

 annosm, 101, 102* ; Polyporm 

 Schweinitzii, 128*; Trametes Pini, 

 141 



hyphae, 4 



Hypodennella laricis, 172 



Hypostomaceae, 171 



Increment borer, use of, 123, 133 

 inner cortex of larch stem, 10 

 insoluble gum, 91 

 isolation trenches, 122, 165 



Japanese larch, canker on, 50, 69 



Kissling, E., on Botrytis cinerea, 30 

 Kuster, E., on abnormal wood, 31 



Larch, first-year shoot of, described, 

 7 ; introduction of, 1 ; suitable 

 trees for mixing with, 72, 185, 186 



larch canker, 17-80 



abnormal wood, 31 ; accumula- 

 tion of calcium oxalate, resin, and 

 fcannin, 28 ; analysis of cankers 

 on main stems, 54 ; artificial in- 

 fections, 23, 49; at base of 

 branches, 55, 56 ; connexion with 

 DasyscypJut not proved by Will- 

 komm, 22 ; contributory causes 

 of, 64-67 ; cork layers obstruct 

 growth of, 30 ; distribution of, 

 19 ; earliest notices of, in Britain, 

 19 ; fatal to young trees, 17 ; 

 frequent in damp situations, 21 ; 

 frost hollows, 66, 73 ; general, 

 16 ; importance of wounds ex- 

 aggerated, 62 ; increased growth 

 of stem at back and sides, 36 ; 

 infection through dormant buds, 

 62 ; measurements of growth of, 

 24 ; method of formation, 34 ; 

 methods of prevention, 69 ; mini- 

 mum temperature for growth of, 

 26 ; mode of infection in nature, 

 52 ; occurrence at definite levels, 

 55 ; originating from dead 

 branches, 58 ; passing cork layer 

 at base of branch, 58, 59, 60* ; 

 relation to Chermes abielis, 50; 



