346 



INDEX 



Heath, the Alpine, see the Mediter- 

 ranean Heath 

 Heath, the Mediterranean, 110, 140- 



141, 231, 251, 299 

 Heather, White, 46 

 Heaths, the, 4, 215 

 Heer, 0.,175 

 Height, greatest at which plants 



occur, 172-174 

 Hellebores, the, 208, 273 

 Herb Paris, the, 257-258 

 High Alpine region, the, 6-7, 169-178 

 Highlands of Scotland, the, 110 

 Himalayas, the, 20, 22, 109, 172, 297, 



298 

 Hips of Roses, the, 285 

 Homogyne alpina, Cass., see the 



Alpine Lettuce 

 Honey and insects, 269-275 

 Honey-bees, see Bees 

 Honey guides, 161, 275 

 Honeyless flowers, 39, 261, 272 

 Honey - sucking birds as flower 



polhnators, 279 

 Honeysuckle family, the, 224, 248 

 Honeysuckle, the Black, 225-226, 



228 

 berries of, 225-226 

 union of ovaries of, 225 

 Honeysuckle, the Blue, 228-229 



false-berry of, 228 

 Honeysuckle, the Mountain, 226-227, 



228 

 double berry of, 227 

 Honeysuckles, the, 220, 224-229 

 Hook-climbers, 229 

 Hooked fruits, 285 

 Hooker, Sir J., 303 

 Horned stamens, 223, 231 

 House-leek, the Mountain, 99-102, 



118 

 migration of, 101-102 

 runners of, 101-102 

 House-leek, the Spider's-web, 98-99 



hairs on leaves of, 98-99 

 House-leeks, the, 97, 98-103, 127, 



131, 289 

 habit, 98 



origin of generic name, 103 

 Humble-bees as cross-pollinators, 



53, 58, 106, 126, 130, 254, 270, 



273 



Humming-birds as pollinators, 279 

 Hutchinsia alpina, R. Br., see the 



Alpine Hutchinsia 

 Hutchinsia brevicaulis, Hoppe, see 



the Short-stemmed Hutchinsia 

 Hutchinsia jMrcea, R. Br., see the 



Rock Hutchinsia 

 Hutchinsia, sp., 299 

 Hutchinsia, the Alpine, 196, 197 

 Hutchinsia, the Rock, 196-197 

 Hutchinsia, the Short-stemmed, 196, 



197 

 Hygrometer plants, 125-126 



Ice Age, see the Great Ice Age 

 Illumination, intensity of, 45, 172, 



202, 203, 246, 247, 264, 265, 282 

 India, 20, 22, 227, 239 

 Inequalities of distribution of alpines, 



294-297 

 Insect-capturing plants, 211-215 

 Insect-fertilised flowers, number of, 



270 

 Insect parasites, 238, 290-291 

 Insectivorous plants, 211-215 

 " Insectivorous Plants," by C. 



Darwin, 214 

 Insects and flowers, 268-277 

 Insects : how they recognise flowers, 



274 

 Insects, the eyes of, 274 

 Insects, the food of, 269 

 Insects, the number visiting Viola 



calcarata, Linn., 129 

 Intensity of colour, see Colours of 



flowers 

 Interglacial periods, 302 

 Ireland, 140 



Iridaceae, see the Iris family 

 Iris family, the, 153 

 Irish Shamrock, the, 263 

 Italy, 172, 299 

 Ivies, the, 229 



Jaccard, Prof., 296 



Jacob's Ladder, the, 150, 151 



