528 



SUBJECT INDEX 



Polysiphonia, 461 



fi brill osa, 461 

 Polyspora lini, 211-212, 260, 410, 411 

 Polystictus, 202 



adustus, 101, 288 



hirsutus, 46 



leoninus, 46 



sanguineus, 46 



versicolor, 44, 45, 46, 51, 52, 101, 

 112, 116, 117, 121, 155, 156, 

 151, 158, 162 

 Poly stigma rubra in, 238 

 Povwbolus pseudoharengus, 463 

 Populus, 174 



tremella, 302 

 Porta 



cocos, 353 



in eras sat a, 102 



subacida, 102 



vaporaria, 101 



xantha, 102 

 Poronia leporina, 404 

 Porthetria dispar, 174 

 Posadasia, 370 

 Posidonia Oceania, 466, 46P 

 Potassium, 3, 4, 8, 10, 311, 438 

 Potassium hydroxide, 389 

 Potassium iodide, 379 

 Potato, 110, 145, 161, 231, 240, 245, 

 303, 313, 400, 412, 437 



powdery scab, 399 

 Potato scab, 161, 286 

 Potato wart, 399 

 Powdery mildews, 176, 186, 203, 252, 



253, 262, 268, 403 

 Powdery scab of potato, 399 

 Prasiola borealis, 466, 469 

 Pre-Cambrian period, 476, 477 

 Predisposing factors in infection, 



422 

 Preissia, 298 

 Proline, 83 



Propionic acid, 20, 283 

 Prosopis juli flora, 410 

 Prosthecium, 405 

 Protease, 48 



Proteolytic enzymes, 389 

 Protocatechuic acid, 245 

 Protocoronospora nigricans, 211 

 Protomycetaceae, 483 

 Protonnycites protogenes, 483 

 Protopectin, 48 



Protopectinase, 48 

 Protoparce Carolina, 174-175 

 Protozoa, 280, 292, 429, 443, 448, 454 

 Prunus, 49 

 P sal I iota 



arvensis, 352, 409 



campestris, 82, 126, 166, 196, 191, 

 200, 201, 339, 341, 345, 351, 

 352, 353 



silv i col a, 409 

 Psathyrella disseminata, 200 

 Psendococcus calceolariae, 445 

 Pseudomonas aeruginosa, 86 

 Pseudomycorrhiza, 301, 302 

 Pseud opeziza ribis, 227 

 Pseudoplectania nigrella, 190 

 Pseudopleuronectes americanus, 463 

 Pseudopolyporus carbonicus, 486, 



488 

 Pseudotsuga taxifolia, 404 

 Psendovalsa, 405 

 Psyllia mali, 450 

 Pteridiuni 



aquiliniwn, 299 



latiusculum, 406 

 Pteridophyta, 299 

 Pteridosperms, 477 

 Ptychoverpa bohemica, 136 

 Puberulic acid, 88, 163 

 Puccinia, 407, 40,?, 485 



adoxae, 244 



annularis, 199 



anomala, 260, 215 



antirrhini, 223 



arachidis, 177, 408 



asparagi, 177, 214, 408 



calystegia, 200 



chrysanthemi, 177, 408 



clem at id is, 200 



coronata, 200, 218, 219, 222, 223, 

 230, 231, 234, 275. 333 



coronata alopecuri, 258 



coronata avenae, 172, 215, 258, 

 260, 269, 276 



coronata calamagrostis, 258 



coronata festneae, 258 



coronata lolii, 258 



coronata melicae, 258 



coronifera, 82, 223 



coronifera avenae, 274 



dispersa, 139, 223, 258, 262, 278 



dispersa agropyri, 258 



