554 



BOTANY OF THE LIVING PLANT 



Centaurea (Corn Flower), 537. 



Centaury, Dichasium of, 225 (Fig. 

 171). 



Cephalotus, Urns of, 209. 



Ceratodon, embryo of, 363 (Fig. 306) . 



Ceratopteris, young leaf of, 335 

 (Fig. 275). 



Cereal grains, 545. 



Cetraria Islandica, 439. 



Chaetocladium, parasitism of, 424. 



Chalaza, the point at base of the 

 nucellus where the vascular strand 

 of the funicle stops, 258 (Fig. 206). 



Chalazogamy, where in seed-plants 

 fertilisation is by a pollen-tube 

 traversing the chalaza, 271. 



Chara crinita, generative partheno- 

 genesis in, 478. 



Charlock (Brassica sinapis), 9, 10 

 (Fig. 3), 5, 12 (Fig. 419). 



Chelidonium, 512. 



Chemotropism, positive of pollen- 

 tubes, 268 (Fig. 213, B). 



Cherry, 518, 521 (Figs. 426, C, 429) ; 

 analysis of, 544. 



Cherry-Laurel, hypoderma of, 63. 



Chervil, compound umbel of. 226 

 (Fig. 176). 



Chlamydomonas, 391 (Fig. 329). 



Chlamydospores of Mucor, 426. 



Chlorophyceae, 372, 390 (Chap. xxv.). 



Chlorophyll, the green colouring 

 matter of plants, 98 ; spectrum of, 99. 



Chloroplasts (or chlorophyll cor- 

 puscles), 30, 62, 65 (Fig. 48) ; 

 position of, 67 (Fig. 51), 98, 99 

 (Fig. 72), 102, no. 



Chlorotic state, pale yellow in absence 



of iron, 94. 



Choripetalae, Dicotyledons with 

 separate petals (polypetalous), 505. 

 Christmas Rose (Helleborus) , 164. 

 Christmas Tree (Picea), 303. 

 Chromatophore, of Spirogyra, 399 



(Fig. 337)- 



Chromoplasts, colouring plastids in 

 petals or fruits, 30, 244 (Fig. 190). 



Chromosomes, bodies which segregate 

 in definite number in the dividing 

 nucleus ; they stain deeply owing 

 to the presence of chromatin, 251, 

 367, 464 (Figs. 392, 393) ; pairing 

 of, 468 ; reduction of, 468. 



Chrysanthemum, development of 

 anther in, 247 (Fig. 195), 254 ; 

 C. leucanthemum (Ox-eye Daisy), 

 536 (Fig. 442). 



! Cilia, of Zamia, 315 (Fig. 257) ; of 

 Fern, 343 (Fig. 284) ; of Moss. 361 

 (Fig. 303). etc. 



I Circumnutation, spontaneous move- 

 ment of stem and root in normally 

 growing seedling, 123 (Fig. 85 bis). 

 Cissus, host of RafHesia, 193 (Fig. 



145). 

 Cladonia, 438 (Fig. 372), 439 (Fig. 



373)- 



Cladophora, 394. 

 Cladothrix, straight and slender forms 



of Bacteria, 458. 

 Claviceps (Ergot of Rye), 436 (Fig. 



369), 406 (Fig. 341). 

 i Clematis, 34 (Figs. 20, 21) ; mechani- 

 cal construction of stem, 151 



(Fig. 109) ; prehensile leaf of, 183. 

 Climbing, by straggling, 180 (Fig. 



134) ; prehensile, 182 (Figs. 135, 



136) ; adhesive, 183 (Fig. 137). 

 Climbing habit, 179. 

 Climbing Plants, stem-structure of, 



179 ; methods of, 180 ; woody- 



lianes, 180. 

 Closed-bundle, having no cambium, 



46. 

 Closterium, conjugation of, 400 (Fig. 



338), 481- 

 Clover, day and night movements of. 



129. 



Club-mosses, 316. 

 Club-root, 407 (Fig. 343). 

 Coal, origin of, 116. 

 Cobrea, tendril of, 182. 

 Coccus, spherical form of Bacteria, 



458. 

 Cockle-burr (Xanthium), latent period 



of, 298. 



Coco-Nut, milk of, 280. 

 Codium, matted filaments of, 139, 



395 ; gametes of, 397 (Fig. 335, iii.). 

 Coelebogyne, sporophytic budding, 



477- 

 Coenocyte, a multinucleate protoplast 



not divided into cells : of Siphon- 



nales, 394. 

 Coenogamete, a gamete in which 



many nuclei are involved, 426. 

 Coenozygote, a zygote formed by the 



union of Coenogametes each con- 

 taining many nuclei, 426. 

 Coffee disease, 406. 

 Cohesion, the fusion of parts of the 



same category in the flower, 231. 

 Colchicum, carpels of, 253 ; style of, 



257> 494. 495- 



