302 



BRITISH PLANTS 



Callitriche, 54 



Calluna : relation to chalk, 89 ; 

 distribution of, 224 ; honey, 173 ; 

 leaf, 43. See Heather and Ling 

 Calluna-heath, 230, 249, 250, 252 

 Callus, 140 

 Calyx, 162 

 Cambium, *45 

 Campanula hybrida, 216 

 Camphor, 143 



Campion, moss-. See Silene acaulis 

 Canada, 12, 19 

 Canadian fleabane, 216 ; pond weed, 



234 (see Elodea canadensis) 

 Canals, veg. of, 236 

 Canterbury-bell pollination, 173 

 Capers, 151 

 Capillarity, 86 

 Capillary water, 86 

 Capitulum, 178, *181 

 Capsdla : autogamy, 165 ; fecundity 



of, 108 ; fr., 188. See Shepherd's- 



purse 



Capsular fruits, 187 

 Capsules, 189 

 Caraway oil, 151 

 Carbohydrate, 5 ; in seeds, 146 

 Carbon-assimilation, 4. See Photo- 

 synthesis 



Carbonate of lime, 89 

 Carbonic acid : agent of denudation, 



80 ; gas, 4, 7, 50, 78 

 Cardamine pratensis : buds on leaves, 



*160 ; seeds, 196 

 Carex-bogs, 231, 247 

 Carlina spines, 140 

 Carnivorous pis., 246, 249. See 



Insectivorous pis. 

 Carpels, 183 



Carrot, 60, 108 ; fleshy root, 108, 150 

 Caryopsis, 186 

 Cascades, veg. of, 234 

 Casein, 5 



Castor-oil, 148 ; seeds, 143, 147 

 Casuals, 215 

 Catch-crops, 98 



Catkin, 178, 180 ; pollination, 167 

 Cat's-tail grass, 217 

 Cattle, 20, 21 

 Cauliflower, 150 

 Cauline leaves, 114, 115 

 Celandine : greater (see Chdidonium 



majus] ; lesser, tubers, 111. See 



Ranunculus Ficaria 

 Celery, 150 

 Cell-sap, 24, 92 

 Cellulose, 92 ; as food-reserve, 146 



Cell-wall 92 



Centaurea Calcitrapa spines, 140 ; 

 Cyanus, 216 



Cerastium arvense, 216 ; semidec- 

 andrum, 60, 107 



Ceratophyttum, 49, 54, 56 



Cereal seeds, 146 



Cetraria, 133 



Chalk, 82 ; disintegration of, 81 ; 

 effect on pis., 89 ; glands, 263 ; 

 origin of, 82 ; zoning of, 226 



Chalk-downs : xerophytic factors of, 

 35 : xerophytic nature of pis. on, 

 89 ; veg. of, 258, 259 



Chalk-soil : meadows on, 264 ; physi- 

 cal properties of, 90 



Cham cer ops, 23 



Chamomile, 152, 216 ; oil, 151 



Charlock, 216. See Sinapis ar- 

 vensis 



Chelidonium mains latex, 142 



Chemical action of water, 80, 81 ; 

 properties of soils, 88 



Chenopodium, 216. See Goosefoot 



Cherry : bud-scales, 61 ; citric acid 

 in, 143 ; -laurel, 152 



Chervil, 62 ; root, 111 



Chestnut, edible (sweet) : bud-scales, 

 61 ; forests of, 23 ; fr., 136, *137, 

 *187 



Chestnut, horse: bud-scales, 61 ; fr., 

 190 ; inn., 179 



Chicory, 216 



Chiekweed . : fecundity of, 108, 165 ; 

 pollination, 165 ; resistance to 

 cold, 74. See Stellaria media 



Chillies, 151 



Chlorophyll : as energy-absorber, 66 ; 

 effect of intense light on, 73 ; in 

 mistletoe, 128 



Chlorophyll-tissue : in aquatics, 49 ; 

 in sun and shade leaves, *72, 

 *73 ; in xerophytes, *41, *45 



Christmas-rose, 57, 177. See Hdle- 

 borus 



Chrysanthemum, 109 ; segetum, 216 



Ciehorieae latex, 142 



Cinchona, 142, 152 



Cinnamon, 151 



Circcea fr., 197 



Circumnutation, fH6 



Citric acid, 143 



Cladodes, 44, *45, 46 



Classification of plants, 217 ; arti- 

 ficial system, 2 19 ; natural system, 

 219 ; biological, 105 ; climatic, 16 ; 

 ecological, 223; physiognomic, 16; 



