;62 



Minnesota Plant Life. 



Spore, Slime-mould, 



Smut, 



Sphere-alga, 



Yeast-plant, 

 Spore-producing leaves, Four- 

 leaved water-fern, 

 Sporcling, Care of. 

 Spotted-leafed geranium, 



wintergreen (See Pipsisse- 

 vva, 350, 



Spring-beauty (Engr. 262), 262, 



flowers, 426, 



Spruce (Half-tone, 7, 11, 145), 7, 



12, 24, 54, 192, 424, 436, 442, 457, 



Branch, 



Seed distribution, 



swamp, 353, 



woods, 



Black, 186, 



Muskeg, 186, 



White, 186, 



Spurge, . 305^ 



family, 305, 418, 470,480, 



Seed distribution. 



Flowering, Resemblance 

 to dogbane. 



Mat, 

 Spurred gentian, 

 Squash, 



Fruit, 

 Squaw huckleberry, 



-weed, 

 Squawroot, 

 Squirrel corn, 



St. Croix river (Half-tone, 195), 

 St. Croix river valley, 



56, 179. 330, 334. 355. 356, 

 St. John's-wort, 



Marsh, 

 St. Louis county, 

 St. Paul, 221, 267, 323, 



St. Vincent, 

 Staghorn-fungus, 

 Stalk-fungus, 

 Stalked puflf-ball. 

 Stamens, 



Definition, i8r, 



Staminate flower, Pine, 

 Star-cucumber, 394. 



-grass, 

 Starch, 



-making. Fungus, 



-making, Green plants, 



-making, T<ichcns, 



28 Starch-making, Pond-scum, 



49 Starilower, 



i7 Starwort, 



7i Water-, 



State flower, 



166 Stearns county, 



519 Stem, 



305 Annual rings, 



Growth of, 



352 -succulent, 



465 Methods of developing, 



479 Trailing, 

 Bulrush, 



460 Higher seed plant, 



422 Moss, 

 20 Water plant, 



472 Xerophyte, 



352 Stickseed, 



192 Stiff gentian, 



192 water-buttercup, 



192 yellow flax, 



307 Stigma, 

 506 Definition, 



20 Stinging nettle, 



Stinking smut of wheat, 



308 Stitchwort, 

 308 Stolon, 

 363 Stone-crop, 



394 -crop. Ditch, 



423 Stonewort, 

 356 Storage of food, 

 412 Strawberry, 

 385 Flower axis, 

 276 Stream-side vegetation (Half- 



327 tone), 227,448 

 Struggles of migrating plants, 24 



389 Strychnine plant, 



326 Submerged leaves, 



326 Substances formed by bacteria, 



146 harmful to bacteria, 



325 Substratum, 



259 Relation of plant to, 



86 Succulent, 



95 Origin, 



68 Sucker, 



197 Sucking organ. Dodder, 



184 Sugar, 



186 Manufactured from sugar- 



395 maple, 

 227 -cane, 

 490 -maple, 



48 Sullivant's honeysuckle. 



429 milkweed, 



99 Sullivantia, 



280, 289, 419, 



2>i 

 358 

 448 

 305. 308 

 231 

 341 

 426 



197 

 432 

 474 

 8 

 512 

 422 

 234 

 152 

 450 

 465 



371, i72 

 2,62 

 272 

 306 

 517 



181, 184 



254 

 48.49 

 263 

 512 

 282 

 282 

 38 

 490 

 511 

 345 



360 

 449 

 103 

 104 

 480 

 437 

 473 

 474 

 512 

 369 

 316 



314 

 205 

 313.315 

 392 

 366 

 283 



