Minnesota Plant Diseases. 



419 



Pansies, smut of, 371 



Paper, building, fungi on, 137 



moldy, fungi on, 137 



Parasites (see also wound para- 

 sites), 35, 51 

 cause development of floral 



rudiments, 83 

 cause increase in size of 



host, 82 

 cup fungi, 142, 144 



defined, 9 



destroyers of organs, 80 

 destroyers of small areas 



(Fig. 35), 78, 79 



destroyers of whole plants, 80 



effect of host on, 88 



effect on anatomy of host, 87 



effect on host, 77 



* effect on host tissues, 84 



entrance through wounds, 45 



formation of new organs. 84 



higher seed plants. 199. 200 

 immediate destruction of 



host, 78 



leal inhabiting, 62 



life methods. 60 



low type of (Fig. 34). 77 



on animals, 6<i 



an anthers, 65 



on birds, 73 



on fruit. <>4 

 on insects (Fig. 30), 67. OS 



on molds. 1 14 



on nuclei. 66 



on roots. 64 

 on special plant parts, 



on stems, 03 



place, 198 



plant. 77 



rusts. 164 



si/e of. 13 



stimulation of ho*t. 82 



stimulation of age. S3 



surface dwelling. 60 



wound. 235 



Parasitic fungi, modes of life. oo 



life of smut, . 156 



Parasitism, an auxiliary proc- 

 cess, _>oo 

 aii;l saprophytism, 12, 35 

 contrast in plants and ani- 

 mals. 75 



Parasitism, 



destructive, 

 in animals, 

 nutrient, 

 proficiency in, 



51 

 10 



49 



57.58 



Parchment pore fungus rot, 258 

 Paris green, 213 



for apple orchards, 347 



Partnerships, fungi with alga?, 145 



of bacteria, 193 



of plants, equal (Fig. 21), 48 



of plants, unequal, 49, 50, 51 

 Partridge wood rot (Fig. 118), 



242 



Pastry, molds on. 113 



Pathologist, agent of preven- 

 tion, 208 

 Plicaria repanda (Fig. 64), 144 

 Pea family, powdery mildew of. 325 



root tubercles of. 50 



Peach, brown rot of, 357 



Peanut, wild, gall fungus of 



(Fig. 211), 398 



Pear blight (Fig. 195). 364.365 



leaf rust of (Figs. 181. 182). 



347. 348. 349 



rusts, 166 



Peas, downy mildew of, 336, 337 



Penecillium (Figs. 188. 189), 353,355 



species of. 270 



Peridermium, species of (Fig. 



136). 275.276 



Permanganate of p<ita>sium. 221 

 Peronospora alsinearum (Fig. 



44 > IOI J 



etfusa. 339 



Icptopcrma (Fig. 44). 109 



parasitica, 331 



-chachtii. 339 

 .schleidcni, 333- 334 



trifolioruni, 314 



\i"l:r. 34 



lYrono^porinc.'i' (downy mil- 

 dewo. (Fig. 44), log. no, m 



( white rusts,), 112 



Pe/i/ine;i- ( -cc cup fungi,), 143,144 

 Phacidiinc:*.-, 142 



Phallinea.- (Figs. 94, 95). 187,188 

 Pholiota adiposa (Fig. !_'</). 



262. 263 



fatty, rot ( Ki. i.'g). 202.263 



>curfy, rot. -''13 



