204 
Rabbits carrying spores of Fomes 
annosus, 113 
INDEX 
spore, 5 
' sporidia, 174 
red-rot, caused by Fomes annosus, ; 
88: Polyporus Schiwetnitzii, 138 
resin, 18, 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 Polyporus 
Schweinizi?, 127, 129; on P. sul- 
phureus, 188; on Trametes Pint, 
141 
Sclerenchymatous elements, 11*, 13 
Scots pine, Arnillaria on, 147; 
Dasyscypha, 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. L., on Bolrylis cinerea, 30 
Smith, W. G., on AlZelampseora, 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 ; 
on Fomes annosus, 84 
spermatia, of Dasyscypha, 40*, 42 ; 
of rusts, 175 
spermogonia, of Dasyscypha, 37, 39, 
40* ; in pure cultures, 48; of 
rusts, 174 
Sphaerella laricina, 168-71 
asci, 170; conidia, 169; peri- 
thecia, 170 
spruce, Armillaria mellea, 47: 
Dasyscypha on needles of, 49; 
Fomes annosus, 92; needle cast 
encouraged by, 170; Polyporus 
Schaveinitzii, 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 Hypodermellu laricis, 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 dAferia laricis, 171 
Wagner, G., on Armelaria, 161 
warted hyphae of Dasyscypha, 37 
Welsford, E.8., on Botrytis cinerea. 
30 
Weymouth pine, Armillaria mellea, 
148; Fomes annosus, 86; Poly- 
porus Schweinitzi?, 126 
Willkomm, M.W., biographical note, 
21; on Dasyscypha calycinu, 21, 
46 
willow, 178, 179 
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 
PRINTED IN ENGLAND AT THE OXFORD UNIVERSITY PRESS 
