310 
Monecious flowers, +176 
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; pls., chars. 
of, 249 
Morphia, 143, 152 
Morphology, 7103, 104, 184 
Moschatel. See Adoxa 
Moss-campion (see Silene acaulis) : 
-moor, 225, 254; -rose, prickles, 
116 
Mossy saxifrage. 
ypnoides 
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 pls. 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 bogand moorland pls., 
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, +133 
Myrtle, 23 ; leaf-type, 43 
See Saxifraga 
Narcissus, 62, 63; bulb, *157; fr., 
186, 189; infl., 181; nectaries, 169 
Nardus stricta-association, 251 
Nasturtium amphibium, 28 ; garden- : 
hydathodes, 28; tendzilk PmLIOe 
fr. and seed, *147 
BRITISH PLANTS 
Natural manures, 96; Orders, 105 ; 
regions of dryness, 35 ; Selection, 
139, 203 
Nectaries, 169; extra-floral, 
*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 Circea); 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 pls., 95 
Nitrogenous food-reserves, 146 
Nomenclature of pls., 217 
Norfolk Rotation, 97 
Nuwphar, 52 
Nutmeg, 151 
Nutrition: of green pls., 123; in- 
sectivorous pls., 129; non-green 
pls., 123; parasites, 125; sapro- 
phytes, 123 ; effect of xerophytic 
conditions on, 36, 38, 139 
Nuts, *187, 196; oil, 146; 
tection against animals, 136 
Nux-vomica, 138 
Nyctitropism, 70 
134, | 
pro- 
Oak, 22; bud-scales, 61; competi- 
tion with the birch, 270, 271; 
effect of coppicing, 109 ; enemies 
of, 138; galls, 138; pollination, 
167 ; tannin of, 142 
Oak-birch-heath association, 
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 
@nanthe fluviatilis, 209; Phellan- 
drium, 50 
nothera biennis (see Evening-prim- 
rose) ; Lamarckiana, 205 
Offsets, 155 
229, 
