INDEX 



421 



embryology of, 350-52 (fig.) ; 

 female cones of, 336 (fig.), 337 

 (fig-). 345-7 (figs.), 352. (fig-) : 

 fertilisation of, 349, 350, 353 ; 

 habit of, 334-6 (figs'.) ; leaf 

 of, 161, 335-7, 341-4 (figs-); 

 male cones of, 336 (fig.), 

 344-6 (figs.), 347 (fig.) ; 

 ovules of, 333, 348, 349 

 (fig.) ; pollen sacs (micro- 

 sporangia) of, 345, 347 (fig.) ; 

 pollination of, 348 ; root of, 

 70, 341; seedlings of, 337, 

 338 (fig.) ; seeds of, 351, 3.52 

 (fig.); stem of, 117, 335, 338- 

 41 (figs.) ; wood of, 37 (fig.), 

 .127, 340, 341 (fig.). 



Coniine, 61. 



Conium maculatum, 61. 



Conjugates, 208 ; reproduction of, 

 216, 226-8 (fig.) ; structure 

 of, 208-10 (fig.). 



Conjugation, 226, 227 (fig.), 237 



(fig-)- 

 Connective, 359 (fig.), 360 (fig.), 



362. 

 Contractile vacuoles, 181, 182 (fig.), 



187 (fig.), 193, 213. 

 Conversion of sewage, 265. 

 Convolvulus sepium, 153. 

 Copper Beech, 382. 

 Copra, 49. 

 Copnnus, 245. 

 Coral-Fungus (Clavaria), 250, 251 



(fig-). 



Coral reefs and Algae, 204. 



Coral-spot disease (Nectria), 253. 



Corallina, 204, 205 (fig.). 



Corchorus, 34. 



Cordaitales, 407. 



Cordyceps, 239, 255. 



Cork, 135-42 (figs.) ; and leaf-fall, 

 141, 142 (fig.) ; and wounds, 

 142 ; commercial sources of, 

 140 ; formation of, 131 (fig.), 

 135-8 (figs.) ; functions of, 

 137, 138; properties of, 137, 

 138. 



Cork-cambium (phellogen), 135-42 

 (figs.) ; and aerenchyma, 175 ; 

 of Conifers, 338, 339 (fig.). 



Cork Elm, 141 ; Maple, 141 ; 

 Oak (Quercus suber), 140. 



Cork- wings, 141. 



Corms, 355. 



Corn Cockle (Agrostemma githagd), 

 no, 370. 



Cornus sanguined, galls of, 143 (fig.). 



Corolla, 354, 373. 



Cortex, 65, 76 ; of aquatics, 171 



(fig.), 173 (fig.), 175 ; of 



petiole, 114; of pulvinus, 115; 

 of root, 65 et seq., 295; of 

 stem, 19, 30, 43, 76 et seq., 



134, 338. 



Cortical bundles, 86. 

 Cosmarium, 209 (fig.), 210 ; C. 



meneghini, 209 (fig.). 

 I Cotton, 103 ; plant (Gossypium 



Spp.), 102, 103. 



' Cotton-grass (Eriophorum) , 178. 



I Cotton-seed oil, 49. 



j Cotyledons, digestive action of, 

 150 ; food-reserves of, 40, 41, 

 44, 50 ; of Angiosperms, 355. 



369 (fig.), 370, 371 (fig.) ; o f 



Conifers, 338 (fig.), 350, 351 

 (fig.), 352 (fig.) ; of Cycads, 

 326 ; structural features of, 30, 



153- 



Covering hairs, 102 (fig.). 



Cow- wheat (Melampyrum), 179. 



Crassulaceae, 178. 



Creeping Buttercup (Ranunculus 



repens), root-structure of, 66-9 



(figs.). 



Crenothrix, 268. 

 Cress (Lepidium), 48 ; " damping 



off" disease of, 235 (fig.). 

 Crocus, 364 ; C. sativus, 64. 

 Crops, fungal diseases of, 230, 231, 



234, 235 (fig.), 241 (fig.), 243 



(fig.), 245, 246 (fig.), 247, 248, 



252-4. 



Crossing (hybridisation), 382-9. 

 Crowberry (Empetrum nigrum), leaf 



of, 163 (fig.). 



Cruciferae, 48, 63, 69, 103, 104, 231. 

 Cryptogamia, 355, 406. 

 Cryptomeria, 347. 

 Crystal-sand, 58. 

 Crystalloid, 50, 51 (fig.). 

 Crystals of, inulin, 44, 45 (fig.) ; 



osazones, 47 (fig.) ; oxalate of 



lime, 58, 59 (fig.), 130, 237 ; 



pigments, 64. 



Cuckoo-pint (Arum maculatum), 112. 

 Cucumber- family (Cucurbitaceae), 



8 1 ; mildew (Erysiphe poly- 



goni), 243. 

 Cucurbita, hairs of, 102 (fig.) ; 



phloem of, 29 (fig.), 82, 130 ; 



stem-structure of, 80-83 (figs.), 



87 ; tyloses of, 127 (fig.) ; 



vessels of, 35 (fig.), 83. 

 Cucurbita pepo, pollen of, 362 (fig.). 



