322 



BRITISH PLANTS 



Monceclous flowers, ■^116 

 Monotropa, eaprophytio nature of, 



124 

 Monthretia, 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 ; Vacoinium-, 



231, 249, 251 

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



of, 249 

 Morphia, 143, 152 

 Morphology, tl03, 104, 184 

 Mosehatel. See Adoxa 

 Moss-campion (see SUene acavZis) : 



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



116 

 Mossy saxifrage. See Saxifraga 



hypnoides 

 Moths, 170, 173, 174 

 Mould, 94 

 Mountain-ash berries, 149; -avens 



(see Dryas octopetcda) 

 Mountains : Ught, 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 Oeras- 



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, 126 ; of sapro- 



phjrtes, *128 ; symbiosis, 133 

 Myosotis coUina, 107 

 Myrica-bog, 231, 250, 253 

 MyriophyUum : brood-buds, 64 ; pol- 

 lination, 167 

 Myrmeoophily, tl33 

 Myrtle, 23 ; leaf-type, 43 



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

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

 Nardus stricta-association, 261 



Naaturtium 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, *118, 

 134, 173; sham, 171 



Nectarine, origin of, 205 



Needle-type of leaf, 42 



Nepenthes, 132 



Neottia, saprophytic nature, 124 



Nettle, 162. See VHica 



New Zealand flax, 42 



Nightshade : common, 216 ; deadly 

 (see Atropa Belladonna) ; enchan- 

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

 162, sham-nectaries, 171 



Nitrate-bacteria, 95 



Nitrates produced by bacteria, 96 



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 



NupJmr, 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; oU, 146; pro- 

 tection against animals, 136 



Nux-vomica, 138 



Nyctitropism, 70 



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

 tion with the birch, 270, 271 ; 

 effect of coppicing, 109 ; enemies 

 of, 138 ; galls, 138 ; poUination, 

 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 fluviatUis, 209 ; PheUan- 

 drium, 50 



(Enothera biennis (see Evening-prim- 

 rose) ; Lamarckiana, 206 



Offsets, 155 



