424 



Minnesota Plant Diseases. 



Rot, 



of sulphur fungus (Fig. 124), 



252, 253 

 of timbers, dry (see dry 



rot), 235 



of timbers, harvesting of 



trees, 237 



of timbers, prevention of, 



237, 238, 239, 240 



of timbers, smooth shelf, 172 

 of timbers, trembling fungi, 169 

 of timbers, treatment to pre- 

 vent, 239 

 of vine, black, 365, 366 

 of wood, coral fungus 



(Fig. 119), 244,246 



of wood, stick fungi, 139 



partridge wood (Fig. 118), 242 

 Stereum wood (Fig. 117), 240 

 sterile-fungus, of garden 



plants, 329 



tinder fungus, 251 



wet, of potato (Fig. 172), 340 

 Rush-like plants, smuts in, 158 



rust of dark green, 391 



Rust, bird's-nest of red cedar, 350 

 epidemics and pure cul- 

 tures, 206 

 club, of juniper, 349, 350 

 leaf, of apples and pears 



(Figs. 181, 182), 347, 348, 349 

 of anemone, 390 



of ash leaf, 277 



of asparagus (Fig. 161), 318, 319 

 of asparagus, spray pump for 



(Figs. 109,110), 222,224 



of aster leaf, 376 



of bean (Fig. 162), 319 



of birch leaf, 279 



of carnations, 373 



of cereals, losses by, 201 



of chrysanthemums, 171, 372 



of clover leaf, 292 



of coffee epidemics, \oo 



of composites, 387 



of corn, 292 



of cowberry (Fig. 207), 



387, 389, 390 



of dark green rush, 391 

 of ferns, 387 



of golden rod (Fig. 205), - 



376, 388 



Rust, 



of gooseberry and currant, 



317, 386, 387 

 of grasses, destroyers of 



leaves, 80 



of hollyhocks and mallows, 



372, 373 



of Indian turnip, 392 



of mallow, epidemics, 98, 102 

 of milkweeds, 280, 386 



of mint (Fig. 209) 317, 318, 393 

 of pine leaf, 276, 277, 351 



of pine stem (Fig. 136), 



275, 276 



of poplar (Fig. 137), 278, 279 

 of Pyrola, 386 



of rose leaf (Figs. 199, 200, 



201), 375 



of rose stem, 375, 376 



of sedges, 391 



of sunflower (Fig. 206), 



373, 374, 375, 389 



of violet, 373 



of willow leaf (Fig. 138) 279 

 of wild sarsaparilla (Fig. 



208), 390 



orange, of raspberries, etc. 



(Fig. 1 60), 316, 317 



predisposition towards, 93 



-proof varieties of wheat, 



289, 290, 291 



spores, insect distribution, 29 

 white, inoculation by, 98 



Rusts (Figs. 73, 74, 75, 7.6, 77), 

 (see also page 166), 80, 159 to 166 

 breeding act in, 164 



causing rupture of epi- 

 dermis, 87 

 causing witches'-broom 



(Figs. 23,26), 51,53,57 



cedar apples of red cedar 



(Figs. 181, 182), 347 



cluster cup, of wild flowers, 386 

 effects of hosts on, 88 



effects on tissues, 84 



infection of grass leaf (Fig. 



29), 6 i 



inoculation by spores, 98 



leaf habit of, 62 



of wheat (Fig. 73), 159 



of wheat and other cereals 



(Figs. 139 to 145), 282 to 292 



