196 INDEX. 



Coenooyte, of Vaucheria, 93 ; of fungal hyphse, 88. 



Collenohyma, 40. 



Colony, Definition of, 2. 



Colouring matters, in cell-aap, 168 ; in ohromoplasts, 167, 168 



Companion-cell, 60. 



Coniferse, Position of, 6. 



Conjugatse, see Spirogyra. 



Conjugation, in Spirogyra, 148 ; in fungi, 146, 147 ; in Sphserella, 98. 



Constructive processes, Anabolic, 159, 160, 177 ; Katabolic, 159, 160, 



177. 

 Cork, Origin of, 37, 38 ; Functions of, 38, 39. 

 Cork-cambium, 38. 

 Cortex, Origin of, 36. 



Cotyledons, Formation of, in Angiosperms, 128. 

 Crystals, raphides, 84 ; clustered, 84 ; Quadratic, 84. 

 Crystalloids, in carrot, 168 ; in Dahlia cells, 84 ; in Aleurone-grains, 



176. 

 Curvatures, Geotropic, 184 ; HeUotropio, 181 ; due to variations in tur- 



gidity, 181, 184. 

 Cuticle, 25. 

 Cutin, see Cuticle. 



Cyoadese, Position of, 6 ; Antherozooids of, 132. 

 Cystoliths, of Ficus, 85, 86. 

 Cytoplasm, see Protoplasm. 



D 



Dehnitive nucleus, 123. 



Degeneration, evidenced in amitosis, 100. 



Deposits, in cell-wall, 168 ; from ceU-sap, see Crystals. 



Dermatogen, 24 ; Modification of, 25 ; Cells formed from, 23, 24. 



Development, of microspore, 119, 131 ; of macrospore, 121, 132 ; of resin- 

 canals, 83 ; of stomata, 27 ; of antherozooids, 142, 149, 151 ; of 

 archegonia, 133 ; of heat in cells, 160, 161 ; of hairs, 31, et seq. ; of 

 first wood-elements, 79. 



Dextrin, 74 ; as intermediate product during action of diastase upon 

 starch, 74, 171. 



Dextrose, presence in plants, 165, 171, 177. 



Diageotropism, 184. 



Diastase, occurrence in plants, 74, 158, 171 ; Action of, upon starch, 74, 

 158, 171. 



Diaster, see Mitosis. 



Diatoms, Structure and reproduction in, 99. 



Dicotyledons, Position of, 6 ; Arrangement of tissues in stem of, 4, 48, 

 49, et seq., and Chap. v. 



Dispireme stage, see Mitosis. 



Double fertilisation, 127, 154. 



Dracaena, Raphides in cells of cortex in, 84 ; Cambial ring in, 53. 



Duramen, Function of, 175. 



