Subject Index 449 



slylar cell of pistil. 102 



test of autonomy. 105 



time of treatment, 105 



\()liimcs, 104 

 Cokliifineamide, 409 

 Colchicinic acid. KiO 

 Colchicoside. 117, 172,398.405 

 Colchicuni 



geographic distribiilion of. 111. 1 12 



history of. 1-14 



species of. 9-10 



variously named, (i, 7 

 Colchicum, isolating compounds from 



bv boiling water. 153 



by chromatography, 153, 154. 159 



corm, 153 



by degradation. 153 



detection in pollen germination. 153 



flowers, 4, 153 



fruit, 5, 153 



methods, 153 



by polarography, 153 



properties, 153 



seed, 153 

 Colchinol, 167 

 Colchinol derivative. 167 

 Colchinol mcthvl ether, 163, 170 

 Colchis, land of. 3. 4. 7 

 Cold-blooded animals. 379 



vertebrates, 96, 374, 375, 399 

 Coleoptile, 384 

 "Coliform bacteria," 122 

 Complex crystals. 373 

 Concentration effects, 70-73. 7(i 

 Concepts of metaphasic arrest, 16-21, 



2-1-26, 26-29 

 Conidial hypertrophy, 124 

 Connecti\'e tissue 



mitotic stimulation. 230 

 Contractile force. 181 

 Contracture, 181 

 Convoluted tubules, see Kidney 

 Cooley's anemia, 224 

 Coprimis radifnis, 123 

 Corcgouus. pol\|)l()idy in, 210 

 Cork, in plant tumors, 266 

 Corm powdered, 2 

 Corms of Coh lii( iiiii . 3. 5 

 Cornea, 383 



healing of, 248 



mitosis, 409 



tissue mitoses, 40, 43, 82-83 

 Corpuscular body of spindle, 25. 66. 79. 



80, 85, 96 

 Cortical la vers, 74, 89 

 Cortin, 180 

 Cortisone, 197, 227 

 Cotton, 26, 279: see also Gossxpiinn 

 evolution under domestication. 279 

 Cossypiiini, anijjhiploids of. ,30 1 

 natural tetraploids, 283 



in nature. 279 

 Sea Island cotton. 305 

 speeded up. 2^0 

 Uplaiul cotton, 305 

 Coumarin, 413 

 Cranberries. 324 



cultivated diploid, 324 

 natural tctraploid, 324 

 sterde liexaploid, 324 

 Creatine, 397 

 Criteria for judging jiolvploidv in plants, 



362-77 

 Crop-sac, in pigeon. 22(). 228 

 Cryptic structural hybrichty, 277, 305 

 compared to genetic hybridity, 305 

 Ciyptoearia pleuiospoia. 413 

 Crvptopleurine, 413 

 Crvstallization of colchicine, 159, 37,3 

 Cucuniis III el o, 325 

 Cucurbita, 325 

 amphiploid, 285 

 Banana, 31 1 

 Buttercup. 311 

 Butlenuit. 31 1 

 Ciolden Cushaw. 31 1 

 Golden Hubbard, 311 

 Gregory, 311 

 Ken'tuckv Field, 311 

 new species, 285, 325 

 species of: inaxiiiia, 325, 285; ,nos- 

 chala, 325, 285; mixta, 285, 311; 

 pcpo, 2S5, 311 

 Cidturing chambers, 385 

 Cumulative geometric effect, in \'ico- 



tiaiui polyploids. 356 

 Cupaniae, 9 

 Cyclosis, in El odea, 90 

 Cvtogenetic changes, 93 

 Cvtokinesis, 73, 86. 88 



spindle of. 89, 92 

 Cytological artefacts, 77 

 Cytoplasm, 74 

 Cvtoplasmatization. 71. 89 

 C^ toplasmic \iscosity. 90 



D-genome, 296-98, 358 



in Aegilops squarrosa, 296 



amphiploiils. 29(i 



isolating mechanism. 296 

 Datura, 19, 20, 345, 350, 354, 357 



apical meristem, 350, 356 



chimeras. 356 



cytohistology, 350 



2n — 1 delicient types, 345' 



drug production, 368 



fifteen-year breeding recoixl, 31() 



frecpiency of diploid deficiencies, 34.5i 



increase bv colchicine, 34.> 



L chromosome, 34(> 



