INDEX 



503 



Heleocharis, 388 



Heliotropism, 7, 12 



Hemiparasites, 155, 223, 229, 233 



Hemp, 245, 247 



Henbane, 120, 127, 129, 130 



Henslow, Prof. G., 174, 227, 269 



Herb Paris, 317, 319. 33^^ 337. 33^ 



Herbs, 52 



Heredity, 22, 31, 57, 58 



Heterotrophic plants, 23 



Hevea elastica, 236 



Highland loch vegetation, 84 



Hippophcs, 219, 251 



„ rhamnoides, 221 (222) 



Holloway, 356 

 Holly-leaved Naias, 385 

 Homologous types, 59, 60 

 Honey-guides, 42 

 Hook-climbers, 24 

 Hooker, 253, 264, 275, 317 

 Hooker and Arnott, 202 

 Hooper, Lucy, 331 

 Hop, 245, 246, 247, 248, 249 

 Hornbeam, 254 

 Horned Pondweed, 381, 382 

 Hornwort, 263, 264, 265 



,, Group, 262 



Horse Mint, 178, 179 

 Horse-tail like types, 61, 89, 91 

 Horsetails, arborescent, 90 

 Hound's Tongue, 114, 120, 121 



>t n Group, 112 



Humidity, 70 

 Humulus, 245 



,, Lupulus, 247, 248 (250) 

 Hyacinth, 319, 331 

 Hybridity, 21 

 Hydrocharis morsus • ranee, 280 



(282) 

 Hydrocharitacese, 277, 278 

 Hydrophilous chomophytes, 88 



Hydrotropism, 13 

 Hygrophiles, 75 

 Hyoscyamus niger, 129 (131) 

 Hypocotyl, 5, 21, 36 

 Hypogeal, 4 

 Hypophysis, 21 



Ice Age, 93, 94 



Illecebraceae, 189, 1 90, 191 



Illecebrum, 191 



Impatiens noli-me-tangere, 1 1 1 



Incompletse, 189 



Indian Millet, 401 



Inflorescence, 44 



Inherent tendency to vary, 31, 58 



Insectivorous plants, 13, 161, 162, 



163, 167 

 Integument, 20, 21 

 Interglacial periods, 93 

 Intermediates, 48, 58 

 Intine, 19 

 Ipomsea, 123 

 Iridacese, 298 

 Iris, 272, 297, 298, 299 



,, Florentina, 299 



,, Group, 297, 298 

 Irish Ladies' Tresses, 344 

 Irritability, ii 

 Island Floras, 63 

 Ivy, 12, 24, 157 

 Ivy-leaved Duckweed, 364 



„ Toadflax, 147 



Ixia, 299 



Jacob's Ladder, IIO, 112 



„ „ Group, 109 



Jasminoidese, 96 

 Jasminum, g'j 

 Jatropha, 234, 236 

 Jointed Pipewort, 344 

 Juglandaceje, 250 



