INDEX AND GLOSSARY 



555 



Coleochaete, 403. 



Collateral bundle, where wood and 

 bast run longitudinally parallel on 

 the same radius, 46, 74 (Figs. 23, 33). 



Collema, 438, 440, 457. 



Collenchyma, 34 (Fig. 21), 35 (Fig. 

 22) ; structure of, 143 (Fig. 102) ; 

 walls of cellulose. 143 ; physical 

 qualities of, 147. 



Column, of Orchidaceae, 499 (Fig. 

 402). 



Columnar requirement, for mechani- 

 cal resistance in stems, 149. 



Companion-cells, cells adjoining sieve- 

 tubes, from which they are derived 

 by late longitudinal division, 41 

 (Figs. 25, 26, 27, 28). 



Complete parasites, those which are 

 wholly dependent on parasitism 

 for nutrition. They are without 

 chlorophyll, 190. 



Compositae, wind-borne fruit of, 290 

 (Fig. 234), 534 (Figs. 44O-443) ; 

 structure of flower of, 535 (Fig. 441). 



Conceptacle, of Fucus, 382 ; origin of, 

 Fig. 318 ; mature structure, 281 

 (Fig. 319). 



Concrete, reinforced, 147. 



Cone of Coniferae, 307 (Fig. 246) ; of 

 Archegoniatae, 317. 



Conidiophore, a hyphal branch which 

 bears conidia : of potato-fungus, 

 417 (Fig. 353) ; of Ascomycetes, 

 430, 433 (Fig. 366)- 



Conidium, the air-borne, not sexually 

 produced, propagative cells of 

 Fungi, 408. 



Coniferae, 3, 302 ; female cones of, 

 364 (Fig. 246). 



Conjugatae, 398 ; of Ascomycetes, 

 430 ; of mildews, 431 ; of potato- 

 fungus, 417 (Fig. 353), 418 ; germi- 

 nation of, 420 (Fig. 355). 



Conjugation, syngamy of equal ga- 

 metes, 410, 461. , 



Conjunctive parenchyma, those paren- 

 chyma cells which fill up the spaces 

 between vascular elements of the 

 stele, 73, 74 (Figs. 55, 56), 81 

 (Fig. 63), 332. 



Connective, the region between two 

 anther-lobes, greatly extended in 

 Sage, 533. 



Constitution, water of, 84. 



Constructive metabolism, those che- 

 mical changes which relate to for- 

 mation of new organic material, 98. 



Continued embryology, 13, 14, 15. 

 Continuity of protoplasm, the con- 

 nection of one protoplasmic body 



with another by threads traversing 



the cell-wall, 30 (Fig. 19). 

 Contractile vacuole, 373. 

 Control by stomata, 90. 

 Convallaria, 495. 

 Convolvulus, twining stem of, 182, 



190 ; flowers of, 192. 

 Copaifera, arillus of, 282 (Fig. 225). 

 Cora, 454. 



Coral-root, mycorhiza in, 197. 

 Corallorhiza, mycorhiza in, 197 ; 



saprophytism of, 201. 

 Cordaites, 148 

 Cordiceps, 329. 



Cork, 54 (Figs. 40, 41), 69 (Fig. 52). 

 Corn, " laying of," 123 ; recovery, 



124 (Fig. 86). 

 Corn-flower, 537. 

 Corolla, the inner floral envelope 



composed of petals, 221. 

 Corona, a late additional appendage 



of the corolla, 495. 

 Correlation of growth, where one 



part is developed larger than usual 



and another part is reduced, 184. 

 Cortex, the tissue lying between 



epidermis and stele. 35, 36 ; of 



root, 71, 72 (Fig. 53) ; of old root, 



82. 

 Corydalis, transverse zygomorphy of, 



240. 



Corypha, its single flowering, 163. 

 Cotton, hairs on seeds, 289 (Fig. 232). 

 Cotton-grass, 492, 502 (Fig. 404). 

 Cotyledons, the first seed-leaves borne 



on the embryo, 7, 283 (Fig. 226). 

 Couch grass, vegetative propagation 



of, 218. 



Cow-parsnip. 534 (Fig. 432). 

 Crassulaceae, meristic differences in, 



231. 



Cress-seedling, 413 (Fig 348). 

 Crocus, 164, 492, 497 ; style of, 257 ; 



storage corm of, 165 (Fig. 124). 

 Cruciferae, 512 (Fig. 419). 

 Crystalloids, proteid storage bodies of 



crystalline form, of potato, 109 



(Fig. 79). 

 Cucumber. 40, 41 (Figs. 25, 26, 27) ; 



bi-collateral bundle of, 41. 

 Cucumis, relation of temperature to 



growth of, 121 (Fig. 84 bis). 

 Cultivated plants, vegetative pro- 

 pagation of, 215. 



