406 ; 
Humming-bird moths, 203 
Huxley, go 
Hydrogen, go, 100 
Ill-timed growth, 378, 379 
Immortelles, 354 
Imperfect flowers, 66 
Indian corn, 118, 126, 175 
Indian hemp, 309 
Indian pipe, 99, 269 
Indian shot, 103 
Insect-fertilized flowers, 157, 285 
Insect messengers, 32 
Insects, 42, 75, 173 
Involucre, 44 
Iris, 35, 124 
Irish gorse, 114, 323 
Iron-wood, 69 
Ivy, English, 235 
Ivy, poison, 235 
Jacqueminots, 136 
Jamestown weed, 214 
Japan lily. 204 
Japan lilies, 212 
Jasmine, 207, 239 
Jean Paul Richter quoted, 230 
Jersey pine, 275 
Jimson .weed, 214, 217, 227 
Juniper: 
berries of, 289, 298 
seedling, 270 
Junipers, 288, 296 
Kerner quoted, 286 
Kinship of flowering and flower- 
less plants, 295 
Lace-flower, 349 
Law of disused organs, 45 
Laws for preservation of forests, 
155 
of grasses, 154, 155 
Leaf-bud, 59 
Leaf-buds opening in autumn, 
377 
Leaf-climbers, 233, 240 
Leaf-scars, 368 
Leaf-skin, 368 
Leaf, structure of, 89, 90 
Index 
Leaf tissue, 90 
Leaves converted into prickles, 
TI4 
into store-houses, 113 
into traps, II5 
Leaves, floating, 112 
Leaves, submerged, 112, 113 
Leptosporangiatez, 266, 267 
Lichens, 248, 385 
Light necessary to protoplasm- 
making, 105 
Ligule, 160 
Liguliflore, 353 
Lily, 116, 117, 123, 148 
Lily-kin, 119, 121, 126, 129 
leaves, 108, 123 
stem, 131 
Lilies, 130 
Links connecting flowering and 
flowerless plants, 290 
Linnezus’ floral clock, 230 
Little panic-grass, 153 
Liverworts, 248 
Loculi, 371 
Loculus, 371 
Locust, 323 
Longfellow quoted, 282, 355, 361 
Love charms, 359 
Love divination, 334 
Love lies bleeding, 354 
Lubbock quoted, 341 
Lychnis, evening, 225 
Lycopodinex, 296 
Lycopodiums, 251 
Macrospore, 27, 28 
Macrospores, 28 
Magnolia, 33 
Maiden-hair tree, 270 
Maple, 56, 59, 84, 85 
red, 50, 54 
Maples, 80 
red, 75 
Marram-grass, 153, 155 
Marsh-flies, 143 
May-apple, 56 
May-flower, 268 
Melancholy thistle, 336 
Mesquit, running, 153 
Microbes, 248 
Microspore, 24, 27 
