54 6 



Minnesota Plant Life. 



Leaves, 423, 435 



Adaptation for spreading to 



sun, 429 



Coatings, 465 



Desert plants, 464 



Floating, 449 



Habit of shedding, 425 



Position on plant body, 429 



Propagation, 512 



Rain tips, 435 



Rolled margins, 457 



Shapes, 430 



Sizes, 430 



Sleep-position, 427 



Submerged, 417, 449 



Water plants, 450 



Fern, What they really are, 170 



Ledum oil, 354 



Legume, 280 



Definition, 295 



Lemon, 305 



Lesser wintergreen, 351 



Lettuce, 399 



Compass-plant, 464 



Lamb-, 393 



Prickly, 403 



Wild (Engr. 403), 402,403,476 



Lichen (Half-tone, 95), 22, 91, 424, 



438, 439, 459, 467, 470, 472, 489 

 Age, 96 



and algae, 93 



Comparison with higher 



plants, 98 



Economic importance, 97 



Edible, gg 



heath, 4 6 9 



Life of, QI 



Minnesota, 95 



Number in Minnesota, 27, 95 

 parasites, 98 



partnerships, 98 



Propagative bodies, 94 



Starch-making, 99 



Structure, 93 



Black-fungus, 98 



-fungus, 95 , 5I 8 



Limestone, gi 



"Old man's beard" (Half- 

 tone), 93 

 Reindeer moss (Half-tone, 



97), 96, 462, 469 



Rock (Half-tone, 92), 93, 96, 467 

 Sandstone, 9I 



Tamarack, Q I 



Licorice, Wild, 298, 302 



Lid-moss, 149 



Life-history, Cottonwood, 183 



Club-moss, 156 



Fish-mould, 46 



Liverwort, 124 



Mildew, 46 



Moss, 123, 124 



Stinking smut of wheat, 49 



Life-period, 509 



Light, Effect on plants, 428 



Influence on growth of 



stems, 432 



-producing bacteria, 102, 115 



Lilac, 360 



Lilac-blight, 80 



Lily, 224, 460, 471 



Allies, 225 



Flower, 346, 347, 348 



Calla, 217 



Easter, 224, 513, 524 



of the Amazon, Giant, 433 



Pond- (Half-tone, 12, 204), 



13, 266, 451 



Pond-, Common yellow, 448 



Sweet-scented, 266 



Tuber-bearing, 266 



Water- (Half-tone, 265), 13, 



266, 273, 351, 448, 449 

 Water-, Leaves, 435 



Water-, Small while, 266 



Lime.. 305 



encrusting bass-weed, 38 



encrusting blue-green algae, 30 

 encrusting slime-mould, 28 



encrustation, Algae (Half- 

 tone), 31,35 

 oxalate crystals, 217 

 -secreting algae, 41 

 Limestone formed by algae, 30 

 lichens, 91 

 pebbles in Lake Micnigan, 41 

 region vegetation, 463 

 Linden, 323 

 Flower, 348 

 American, 321 

 Linen, 306 

 Linseed-oil, 306 

 Lippia, 373 

 Live-forever, 465, 474 

 -oak, 428, 438 

 Liverwort, 42, 122. 439, 460, 472, 



496, 513, 515, 519, 520, 521, 523 

 Air chambers, 135 



