310 



BRITISH PLANTS 



Monoecious flowers, fl76 

 Monotropa, saprophytic nature of, 



124 



Montbretia, 159 

 Moor : cotton-grass (Eriophorum), 



231, 250, 251, 252, 253, 254, 255 ; 



Erica Tetralix-, 231, 250, 252 ; 



heather-, 230, 250, 252, 253, 254 ; 



high-, 246; low-, 246; moss-, 225, 



254 ; shooting-, 252 ; Vaccinium-, 



231, 249, 251 

 Moorland, 16, 19, 248 ; pis., chars. 



of, 249 



Morphia, 143, 152 

 Morphology, f!03, 104, 184 

 Moschatel. See Adoxa 

 Moss-campion (see Silene acaulis) : 



-moor, 225, 254 ; -rose, prickles, 



116 

 Mossy saxifrage. See Saxifraga 



Moths, 170, 173, 174 



Mould, 94 



Mountain-ash berries, 149; -avens 

 (see Dryas octopetala) 



Mountains : light, 35, 36 ; rainfall, 

 12, 17 ; temperature, 11, 17 ; veg., 

 22, 36 ; lowland pis. growing on, 

 289 



Mountain-torrents, veg. of, 234 



Mouse-ear chickweed. See Ceras- 

 tium 



Mouse-tail. See Myosurus 



Mucilage, *41 



Mulberry, fr., 192, *193 



Mullein, 39, 108 



Musa Sapientum, 149 



Mustard : fr., *190 ; source of, 148, 

 151 ; and cress, 150 



Mutation Theory, 204 



Mycorhiza: of bog and moorland pis., 

 246, 249 ; of forest-trees, 267 ; of 

 partial saprophytes, 125 ; of sapro- 

 phytes, *128 ; symbiosis, 133 



Myosotis collina, 107 ; minimus, 214 



Myrica-bog, 231, 250, 253 



Myriophyllum : brood-buds, 54 ; pol- 

 lination, 167 



Myrmecophily, f!33 



Myrtle, 23 ; leaf-type, 43 



Narcissus, 62, 63 ; bulb, *157 ; fr.. 



186, 189 ; inn., 181 ; nectaries, 169 

 Nardus strieta-association, 251 

 Nasturtium amphibium, 28 ; garden- : 



hydathodes, 28; tendrils, 119; 



fr. and seed, *147 



Natural manures, 96 ; Orders, 105 ; 

 regions of dryness, 35 ; Selection, 

 139, 203 



Nectaries, 169 ; extra -floral, 134, 

 *168, 173 ; sham, 171 



Nectarine, origin of, 205 



Needle-type of leaf, 42 



Nepenthes, 132 



Neottia, saprophytic nature, 124 



Nettle, 152. See Urtica 



New Zealand flax, 42 



Nightshade : common, 216 ; deadly 

 (see Atropa Belladonna) ; enchan- 

 ter's, 197 (see Circcea) ; woody, 

 152, sham-nectaries, 171 



Nitrate-bacteria, 95 



Nitrates produced by bacteria, 95 



Nitrites produced by bacteria, 95 



Nitrogen, 7 ; -bacteria, 95 ; circu- 

 lation of, 99 ; fixation of, by bac- 

 teria, 99 ; losses of, in soil, 99 ; 

 sources of, in soil, 99 ; utilization 

 of, by pis., 95 



Nitrogenous food-reserves, 146 



Nomenclature of pis., 217 



Norfolk Rotation, 97 



Nuphar, 52 



Nutmeg, 151 



Nutrition : of green pis., 123 ; in- 

 sectivorous pis., 129 ; non-green 

 pis., 123 ; parasites, 125 ; sapro- 

 phytes, 123 ; effect of xerophytic 

 conditions on, 36, 38, 139 



Nuts, *187, 196; oil, 146; pro- 

 tection against animals, 136 



Nux-vomiea, 138 



Nyctitropism, 70 



Oak, 22 ; bud-scales, 61 ; competi- 

 tion with the birch, 270, 271 ; 

 effect -gf coppicing, 109 ; enemies 

 of, 138 ; galls, 138 ; pollination, 

 167 ; tannin of, 142 



Oak-birch-heath association, 229, 

 271, 296 



Oakwood-associations, 229 



Oak-woods : damp, 269 ; dry, 270 ; 

 lowland-, 269 ; upland-, 270 



Oats, cultivation of, 20, 98 ; food, 147 



Ocean-currents, 13 



Oceanic climate, 12, 21, 22 ; islands, 

 207 



(Enanthe ftuviatilis, 209 ; Phellan- 

 drium, 50 



(Enothera biennis (see Evening-prim- 

 rose) ; Lamarckiana, 205 



Offsets, 155 



