INDEX. 



423 



Host 161 



Houseleek 325 



Hydnum, fructification #20, 404 



Hydrophytes 311, 327 



Hydrotropism 202; apparatus 

 203 



Hylocomium 55 



Hyphae 39; branching 40; fu- 

 sion 45 



Indian turnip, inflorescence 256 

 Infection with fungi 43 

 Inflorescence 87 

 Insects, adaptations of flowers 



to 358; distributing spores 



357; exclusion of 359; as food 



342 

 Integuments, of ovule 243; of 



seed 299 

 Internodes 96; of Chara 27 

 Involucre 256 



Irregularity 254; purpose 359 

 Irritability 145, 183, 188, 274; 



localization 189 

 Isogamy 271, 274 

 Ivy, chloroplasts 4 



Katabolism 170, 175 



Land plants 152, 311 



Larch, gametophyte 282, 283; 

 shoot 320 



Lasiagrostis, rolling of leaf 319 



Lathyrus 407 



Leaves, adaptation 314, 320; 

 arrangement 119; base 120; 

 blade 123; development 117; 

 fall of 140; form 119; growth 

 *37> !38; of mosses 57; origin 

 53; pine 91, 92; primary 117; 

 secondary 117; stalk 122; 

 structure 132, 139; suppres- 

 sion 319; as water recepta- 

 cles 324 



Leguminosae, root tubercles 336 



Lenticels 113 



Leucoplasts 4. 5 



Lichens 46, 47, 225, 337 



Light, effect on growth 184, 

 185; effect on form 313; effect 

 on water plants 338; escaping 



319; produced by plants 174; 



relation to photosyntax 166 

 Lignification 6 

 Lily, anther 248; buds 262 

 Lime, effect of 317 

 Linden, domatia 350; shoot 86 

 Liverwort 49, 378.379, 4^4. 4°5; 



sporangium 227 

 Locomotion 190 

 Locust, development of leaf 



139; stipule thorns 130 

 Lodgers 334 

 Lonicera, buds 88 

 Lotus, fruit 302 

 Lunularia 49, 50 

 Lychnis, petal 254; stigma 240 

 Lycopodium, stem 103 



Malt 408 



Maple, buds 88; fruits 324; leaf 



188; mosaic 195 

 Marchantia 378, 404; elaters 7; 



rhizoids 7; spermary 279; 



thallus 267; brood-buds 262; 



thallus 261 

 Marigold, marsh 389, 407 

 Marsilia, root tip 68 

 Mechanical tissues 149; devel- 

 opment of 186 

 Mechanics of body 149 

 Megasporangium 234 

 Megaspore 231; of lily 2 

 Melampsora, spore beds 215 

 Meristem, primary 35; of root 



68; of shoot 84; secondary 74, 



108 

 Mesocarpus 21; conjugating 



275 

 Mesophytes 311, 312 

 Metabolism 145, 215 

 Metzgeria 52 

 Micrococcus 11 

 Microsphaera 375, 403 

 Microsporangium 234 

 Microspores 231 

 Mildew 224, 375, 403; fruit 295 

 Milkweed, flowers 252; pollen 



mass 253 

 Mimicry 348 

 Mimosa, leaves 208; sleep 



movement 207 



