204 



INDEX 



Rabbits carrying spores of Forties 



annosus, 113 

 red-rot, caused by Fomes annosus, 



88 ; Polyporus Schweinitzii, 138 

 resin, 13, 28, 87, 148 

 resin cysts, 8, 11, 13 

 resin ducts, 8, 9, 14 ; abnormal, 31 

 resupinate fructifications, Fomes an- 



nosus, 100 ; Poria vaporaria, 134 

 rhizomorphs, 146, 150-3 

 Ribbentrop, B., on heart-rot, 122 . 

 rusts, 172 



Saprophyte, 3, 4 



Schrenk, H. von, on Poly poms 

 Schweinitzii, 127, 129 ; on P. sul- 

 phur eus, 138 ; on Trametes Pint, 

 141 



Sclerenchyniatous elements, 11*, 13 



Scots pine, Armillaria on, 147 ; 

 DasyscypJm, 50 ; Fomes annosus, 

 86 ; Polyporus Schweinitzii, 126 ; 

 Trametes Pini, 140 



Secondary causes of larch canker, 64 



secondary rot of Fomes annosus, 116 



seedling diseases, Fusoma, 180 ; 

 Melampsora, 177 ; Melampso- 

 ridium, 175 ; Meria, 171 ; Phyto- 

 phthora, 179 



Siberian larch, canker on, 50 



sieve areas, 12 



sieve tubes, 11*, 12 



Smith, R. E., on Botrytis cinerea, 30 



Smith, W. G., on Melampsora, 179 



soil, cultures of Fomes annosus on, 

 108 ; in relation to larch canker, 

 66 ; infection of Fomes annosus 

 through, 115; requirements of 

 larch, 184 ; sections, observa- 

 tions on, 118 



soluble gum in stems attacked by 

 Fomes annosus, 88 



Somerville, W., on larch canker, 25 ; 

 oh Fomes annosus, 84 



spermatia, of Dasyscyplta, 40*, 42 ; 

 of rusts, 175 



spermogonia, of DasyscypJia, 37, 39, 

 40* ; in pure cultures, 48 ; of 

 rusts, 174 



Spliaeretta laricina, 168-71 



asci, 170 ; conidia, 169 ; peri- 

 thecia, 170 



spore, 5 



sporidia, 174 



spruce, Arm ilia r'ni mellea, 147; 



Dasyscypha on needles of, 49; 



Fomes annosus, 92 ; needle cast 



encouraged by, 170; Poly poms 



Schweinitzii, 126 

 sterigma, 103 

 stipe, 145 

 swarm -spores, 179 



Tannin, 12, 14 ; in larch canker, 28 

 tap-root in relation to Fomes 



annosus, 117 

 teleutosorus, 173 

 teleutospore, 173 

 temperature, influence on growth of 



mycelium of Dasyscypha, 47 

 tracheide, 14 

 Trametes Pini, 83, 140-3 



cystidia, 141 ; fructification, 141 ; 



paraphyses, 141 ; rot in wood, 141 

 Trametes radiciperda, 86 

 turpentine, secretion induced by 



Fomes annosus, 87 

 Tubeuf on Hypodermella lands t 172 

 Tyrol, larch canker in, 64 



Underplanting larch, 70, 171 

 uredosorus, 173 

 uredospore, 173 



Vacuoles, 4 



Vochting, H., on abnormal wood, 31 



Vuillemin, P., on Meria laricis, 171 



Wagner, G., on Armillaria, 161 

 warted hyphae of Dasyscypha, 37 

 Welsford, E. S., on Botrytis cinerea, 



30 

 Weymouth pine, Armillaria mellea, 



148 ; Forties annosus, 86 ; Poly- 



ponts Schiveinitzii, 126 

 Willkomm, M.W., biographical note, 



21 ; on Dasyscypha cali/cina, 21, 



46 



willow, 178, I7!> 

 wood, structure of, 14 

 wounds, causes of, 50, 53, 54 ; in- 

 fection of Dasyscypha by, 62 ; of 



Fomes annosus by, 114 



Xylem, structure of, 14 



H'.IVTED IN ENGLAND AT THE OXFORD UNIVERSITY PRESS 



7799 



