Index 
German heath, 230 
Germination, 272 
Germ plasma, 156 
Glyceria, 161 
Goats, 308, 310 
Grafts, 306 
Grasses, 261-273 
Grass heaths, 91 
Groundsel, 186 
Grouse disease, 5I 
Growth of lichens, 69 
Guanaco, 198 
Gum-cistus, 308, 310 
Gum-tragacanth, 176 
Gums, 177, 312 
HABERLANDT, 145 
Habit, 300 
Heemanthus, 146 
Hairs, 174 
Harpagophytum, 202 
Hay meadows, 133 
‘Hazel in Sweden, 226 
Heat, effects of, 330 
Heather moors, 75, 91 
Hevea, 208 
Highland woods, 243 
Holly, 176 
Honey, secretion of, 119, 151 
Hooker, Dr., 99 
Hot Springs, 33 
Hybrids and hybridising, 287, 300-305 
Hydrophobia, 57 
Hygroscopic awns, 266 
Hyleea, 135 
Ic, action of, 138 
Ice Age, 218-221, 226-230, 233, 296 
Individuality in plants, 152-156 
Insects, 114-116, 123, 124, 319 
Insectivorous plants, 201 
Tris, 305 
Iron bacteria, 61 
JUNGLE forests, 22 
Juniper, 94 
Jurassic, 87 
Karoo, 171 
Klebs, Dr., 122 
Krakatoa, 19 
LAGENOSTOMA, 86 
Lamarck, 296 
Lamium, 196, 254 
Landes, 166 
Land-forming plants, 129-136 
Larch, 238, 240, 291, 292, 334 
Lava-flows, 19, 277 
Leaf-shape, 182 
Leguminosz, tubercles of, 45 
Lens-like cells, 145 
Lewis, Dr., 225, 227 
Lichens, 20, 21, 89-99 
Light, demand for, 244 
» sense of, 145 
Lilac, 216 
Limestone flora, 113 
Liquidambar, 154 
Litorella, 138 
Lobelia, 138 
Lobelias, tree, 282 
Locust fungus, 201 
Loranthus, 196 
Luzula, 97 
Lythrum, 193 
MACROCYSTIS, 35 
Maeterlinck, 143 
Maize, 262 
Mangrove, 280, 324-326 
Manure, effect of, 178, 198 
Maqui, 307-310, 313 
Marsh plants, 131 
Mechanical tissue, 190 
Mendelism, 300-305 
Mentha, 193, 287 
Mesembryanthemum, 172 
Mimicry, 171, 196, 197, 205 
Mimulus, 231 
Mirbelia, 199 
Mites, 194 
Mosquitoes, 322 
Mosses, 24, 70-78, 83, 99 
Mutants, 298 
Mycorhiza, 26, 82, 237, 335 
NATURAL selection, 124 
Navigator plants, 278-281 
Nectaries, 208 
Nemec, 155 
Nepenthes, 150, 201 
Nettles, 196 
New Zealand and South America, 105 
New Zealand sand-dunes, 47, 166 
Nitragin, 47, 
Nitrobacterine, 47 
Nitroculture, 47 
J5° 
