INDEX 



203 



Climatic races, 243, 247 

 Clytia (coelenterate), 129 

 Coagulation, 45-47 

 Coal-tar dyes, 5 

 Codium (green alga), 82 

 Coenocyte, 5, 13, 16 

 Coenocytic embryo, 15 



Coiling of chromonemata, 86, 90, 91, 93, 110 

 Colchicine, 20G 

 Collagen, 51 

 Colloidal system, 40 

 Colonial algae, 14, 15 

 Color bUndness, 190 

 Columbine, 222 



Complement, of chioniosomes, 97-100 

 Component, 46 

 Conant, 57 

 Conifer, 99, 148 



Conjugate division, of nuclei, 163, 165 

 Conjugation, 134, 135 

 Connective tissue, 15, 16 

 Contractile vacuole, 17, 36, 157 

 Cooper, 138, 141 

 Correlation, 20, 82 

 Cotton, 79, 222 

 Cow, 99 

 Crayfish, 67 

 Creighton, 183 



Crepis (angiosperm), agamic complexes, 242 

 amphidiploid, 222 

 chromosome complement, 98, 99 

 embryo sac, 144 

 monoploid sporophyte, 212 

 species and chromosomes, 238, 245 

 syngamy, 142 

 Crossing over, 105, 116, 117, 175, 176, 177, 178- 



179 

 Crossover unit, 178 

 Crystal, 38, 42, 43 

 CrystalUzation, 49 

 Cucumber, 74 

 Cucurbita (angiosperm), 19 

 Cutin, 77 



Culleria (brown alga), 160 

 Cyanophyceae, 162 

 Cycad, 148, 149, 150 

 Cytaster, 70, 126 

 Cytogenetics, 9, 168 

 Cytokinesis, 57, 65-66, 69-70 

 Cytoplasm, cell constituent, 11, 22-25 

 in heredity, 227-233 

 in syngamy, 142, 232 

 Cytosome, 22 

 Cytotaxonomy, 9, 234-249 



D 



Daltonism, 190 



Dangeard, 37 



Darlington, 207 



Darwin, 249 



Datura (angiosperm), 99, 143, 199, 212, 213 



Deficiency, 193 



Deletion, 182 183, 184, 193, 194 



Desynapsis, 217 



Development, 12 

 Diakinesis, 107, 110 

 Diatoms, 31, 161 

 Dictyota (brown alga), 18, 160 

 Differentiation, 17-20 

 Diffused stage, 111 

 Digby, 152 



Digitalis (angiosperm), 218, 223 

 Dikaryon, 163, 164, 166, 106 

 Dikaryophase, 163, 164, 165 

 Dikaryotic hybrids, 224 

 Dikinetic chromatid, 88 

 Dioecism, 136, 189 

 Dioon (cycad), 149, 150 

 Diospyros (angiosperm), 81 

 Diplodinium (protozoan), 17 

 Diploid, 97 

 Diplohaplont, 158 

 Diploidization, 163, 164 

 Diplont, 158 

 Diplosis, 102, 127, 143 

 Diplotene, 109, 110, 111, 116 

 Diptera, 94, 99 

 Disjunction, 102, 103, 106 

 Dominance, 170 

 Double refraction, 48 

 Draparnaldia (green alga), 32 

 Drosophila (fruit fly), bar eye, 201 



chromosome complement, 99, 100 



chromosome map, 181 



crossing over, 175 



deletion, 184 



dupUcation, 201 



geographic strains, 241 



gynandromorph, 190 



heteropyknosis, 87 



inversion, 241 



linkage, 176 



linkage map, 179, 181, 186 



recombination, 175, 176 



salivary chromosomes, 95, 201 

 Druse, 42 



Duplication of genes, 201 

 Dwarf character, 169 

 Dyad, 103, 113, 114 



E 



Echinoderm egg, 69, 127 



Ecology and chromosomes, 9, 243, 244, 247 



Ecospecies, 246 



Ecotype, 246, 248 



Ectocarpus (brown alga), 160 



Ectoplasm, 22 



Egg apparatus, 139, 140 



Einset, 139 



Elastin, 51 



Elater, 18, 155 



Electron microscope, 7 



Embryo, 142 



p:mbryo sac, 139, 140, 142 



Embryogeny, in angiospernis. 143, 144 



in animals, 18, 119 



in ferns, 152 



in gymnosperms, 150 



