556 



Minnesota Plant Life. 



Poplar vegetation (Half-tone), 237 



Balsam-, 238, 239 



large-toothed, 238 



Lombardy, 238, 240 



pocket-fungus, 74 



Silver-leafed, 238 



White, 238 



Poppy, 275 



-mallow, 323, 325 



-mallow, Triangular-leafed, 324 



Pore-fungus, 57 



Edible, 58 



Oak, 58 



Poisonous, 82 



Sulphur-colored, 58 



Willow, 58 



Portulaca, 259, 465 



Posts, Manufactured from jack 



pine, 190 

 Potato, 367, 431, 491, 511 

 -bug, 379 

 -bug plant, 379 

 disease, 46 

 Mildew, 46 

 -scab, 103, 109 

 Sweet, 227, 367 

 Prairie (Half-tone, 9), 471 

 Dominant plants, 7 

 and forest, Difference be- 

 tween, 8, 14 

 Minnesota, 6 

 Prairie-clover, 297, 301 

 Many-flowered, 300 

 Purple, 301 

 Silky, 301 

 Silver-leafed, 300 

 White, 301 

 -dock, 409 

 evening primrose, Shrubby, 335 

 grass (Half-tone, 471), 437 

 mallow, 325 

 rose, 291 

 -turnip, 300 

 violet, 328 

 Preserves, Silver buffalo-berry, 333 

 Prickle, 506 

 Prickle-fungus, 56 

 Prickly ash, 305,307 

 gooseberry, 284 

 lettuce, 403 

 nightshade, 378 

 -pear, 319, 329, 465 

 -pear cactus, 23, 468 



Prickly-pear cactus, Western, 330 



Edible fruit, 330 



Primrose, 357, 358, 426, 475 



Evening-, 



332, 334, 426, 429, 468, 470, 478 



Evening-, Rootstock, 455 



Evening-, Shrubby prairie, 335 



Evening-, White, 335 



Production of seed, 180 



of eggs, 521 



of spermatozoids, 519 



of spores, 513 



Propagation, 511 



Origin of gemma-, 138 



Propagative bodies of lichens, 94 

 branches of Umbrella-liver- 

 wort, 137 

 bulbils of bass-weed, 38 



Prostrate stems, 131 



Clover, 299 



Proteids, 491 



Protoplasm(Seelivingsubstance), 484 



Movement, 498 



Prussic acid, 292 



Ptomaines, 107 



Puccoon, 371, 372 



Broad-leafed, 373 



European, 373 



Hoary, 372 



Yellow, 373 



Yellow, Closed flowers, 373 



Puff-ball, 66, 67, 513 

 Ball-tossing, 70, 71 



Giant, 69 



Hard-skinned, 70 



Slitted, 69 



Stalked, 68 



Truffle, 67 



Tufted (Half-tone), 69 



Warty (Half-tone), 68 



Pulp, Manufactured from box- 

 elder, 317 

 Manufactured from cotton- 

 wood, 239 



Pulse (Half-tone, 10), 471 

 family, 280, 295 



Pulvinus, 503 



Pumpkin, 394, 395 



Fruit, 423 



Purple, Bacteria, 116 



bacteria, Nutrition, 116 



bacterial, 116 



cactus, 329 



