INDEX 



203 



removal of dead branches, 71 ; 

 secpndary causes, 183-8 ; step- 

 like configuration of, 35 ; sum- 

 mary of chapters on, 73 ; trees 

 may recover from, 18 ; vigorous 

 trees less liable to, 68 ; (see also 

 Dasyscypha calycina) 

 Larix leptolepis, canker on, 50 

 Larix sibirica, canker on, 50 

 Laslett, T., 1 

 leaf cushions, 8 

 leaf diseases, 168 

 leaf scars, weak points, 10 

 Leptostroma laricinum, 169 

 long shoots of larch, 6 

 Lophodermium laricinum, 169 

 Loudon, J. C., early notice of larch 

 canker, 19 



Mackintosh, C., on larch diseases, 



25 



Massee, G., on larch canker, 25, 50 

 medulla, 8, 15 

 medullary ray, 15 



in phloem, 11*, 13* 

 Melampsora Larici-Capraearum, 178 

 M. Larici-epitea, 178 

 M. Larici-populina, 178 

 M. Larici-tremulae, 178 

 M. tremulae, 177 

 Melampsoridium betulinum, 175 

 Mer, E., on Meria laricis, 171, 172 

 M&ria laricis, 171, 172 

 ' Micrococcusschwarmer ' of Will- 



komm, 46 

 mixed woods less liable to canker, 



67 



Munch, E., on larch canker, 26 

 mushroom, instance of saprophyte, 



mycelium, 4 



Nectria ditissima, 33 



needle cast, due to Sphaerella lari- 

 cina, 168 ; M&ria laricis, 171 



Newfoundland, larch canker re- 

 ported from, 19 | 



Nieman, ship built of Scots pine, 1 



Nisbet, J., criticism of Novar sys- 

 tem, 70 



Novar system of treating canker, 70 



nuclei, 4^ 



nursery diseases (see Seedling) 



Obligate parasites, 4 

 oospore of Phytoplitliora omnivora, 

 180 



Pan in soils, 187 



paraphyses, of Armillaria, 149, 

 150* ; of Dasyscypha, 39, 40* ; 

 of Fomes annosus, 102* ; of Poly- 

 par us Schweinitzii, 126* ; of Tra- 

 metes Pini, 141 



parasites, 3, 4 



parenchyma, 9 



pathogen etist, 182 



Penicillium sp. growing on Dasy- 

 scypha, 41, 46 



pericycle of larch stem, 11 



periderm of larch stem, 9, 10* 



Peridermium laricis, 175 



peridium, 175 



perithecium of Sphaerella laricina, 

 170 



Peziza calycina (see Dasyscypha 

 calycina) 



P. Willkommii, 23 



phelloderm, 9 



phellogen, 9, 10 



phloem of larch stem, 8, 11*, 12, 

 13* 



Phytophthora omnivora, 179 



pileus, 145 



Polyporus destructor, heart -rot at- 

 tributed to, 2 



P. Schweinitzii, 82, 126-34, 189 ; 

 basidia, 128* ; fructification, 127, 

 137 ; general remarks on, 132 ; 

 hymenium, 128* ; in America, 

 126; paraphyses, 128*; rot in 

 wood, 129, 131*, 132*. 



P. sulphureus, 83, 136-40, 189 

 conidia, 139 ; prevention of, 139 ; 

 species affected by, 136, 137; 

 rot in wood, 138 



P. vapor arius, 134 



poplar, 177, 178 



Poria vaporaria, 83, 134-6 



buckle connexions, 135, 13@* ; 

 causing dry rot, 136 



predispositionist, 182 



primary and secondary causes of 

 canker, 64 



primary rot of v '-Fames annosus f 

 116 



promycelium of rusts, 174 



protoplasm, 4 



pure cultures, Armillaria, 162 ; 

 Dasyscypha, 46, 49 ; Fomes anno- 

 sus, 106 ; suitable medium for, 

 47 



pycnidia, of Dasyscypha, 37, 40*, 

 42 ; of rusts, 174j 



