442 Subject Index 



Amphiploich {(oiitiiiucd) 



divergent evolution of hexaploids, 299 



dysploidy superimposed on, 277, 309 



ecological range of, 292 



Elymus, 302 



evolution by, 277-80 



ferlilitv, 371 



Galeopsis tetrahit synthetic species. 



279 

 gametic doubling of sterile hybrids, 



294 

 genomes of species comi)ined by, 310 

 Gossypiuin, 302-6 

 Gramineae, 294-302 

 hexaploid wheat, 295 

 hvbridization by-passing sterility 



barrier, 284, 362 

 implications of, 292-94 

 intergeneric hybrids converted to, 362 

 intergenomal exchange prevented by, 



292-93 

 interspecific hybrids. 310-12 

 interspecific segregation, 286, 308 

 limits between autoploids and, 292 

 list of, 309 

 Melica. 302 

 multivalents, 308-9 

 natural and experimental, compared, 



303, 307 

 new species, 285, 292, 303 

 Nicotiana, 288, 294, 307-8 

 origin of new species, 278 

 origin of wheat, 295 

 pairing between genomes, 293 

 pairing of chromosomes, 281 

 pairing of hybrid and polyploid. 30S 

 Priinuhi kcivensis, 278 

 Rapluntobmssica, 279, 293 

 Ribes )iiii)olayia, 312 

 segmental allopolyploids, 281 

 significance of, to breeders, 293, 312 

 Sitanion, 302 

 Solatium, hybrids, 31 1 

 somatic doubling, 294 

 Spartiiia tuxvnsendii. 279 

 stability index of, 300 

 sterility changes, 281, 362 

 Stipa. 302 

 success of. 292-93 

 Tritictiles. 300-301 

 Triticinae, 297-99 

 Triticuin aestivum, 279 

 Triticuin spelta, 295 

 weight of seed, 367 

 Winges' hypothesis, 277-79 

 Anachromasis, 32, 51 

 Anaerobic glycolysis, 183 

 Analecla ])harmacognoslica, I 10 

 Anaphase, 80 

 Anaphase hi idges, 97 



Anaphylactic shock, 197 

 in guinea pigs, 197 

 influence of colchicine, 197 

 Anatomical malformations, 275 

 Androgens, 232, 234 

 Androstendione, 235 

 Androsterone, 235 



Anemia; see Addison-Biermer anemia 

 Anemia, hemolytic, 184. 185 

 Anesthesine. 400 

 Anesthetic properties. 180 

 Anethol,413 

 Aneuploids, 354 

 Aniline. 400 



Aniostropical nature of fiber, 75 

 Anodonta, experiment with egg, 202 

 Antagonism, 378, 396, 415, 418 

 Anterior pituitary extract, 226 

 Antibiotics. 394 

 Anticlinal division. 350 

 Antifolic drug: see Aminopterin 

 Antirrhimun, 319 



afterellects of colchicine in, 115 

 intervarietal tetraploid, 319 

 intravarietal tetraploid, 319 

 meiosis, 1 15 

 susceptibility of, 1 16 

 Apigenin. 117 

 Apiol.413 

 Apolar mitosis, 86 

 Apple, .351 



Arabian medicine, 2, 3 

 d-Araboascorbic acid. 418 

 Arbacia. ()9. 74, 79 



colchicine applied to eggs, 87, 377 

 egg, 202, 203 

 puru liilata. 74-75, 87 

 Arbacia, lakelike body in. 74. 79. 88 

 Archiroh liicuin. 8. 9 

 Aretacus. 1 1 



Aristohx Ilia eleiroiis. 113 

 Aromatic compounds. 400 

 Arsenic, 415 



derivatives of, 257, 392,411 

 Arsenious oxide, 41 1 

 Arterial constriction, 179 

 Artificial insemination, 59 

 Ascites-tumor, 259, 377 

 1-Ascorbic acid, 418 

 Ascorbic acid, in tumors, 260, 261 

 Aspergillus, 123 

 Asterias forhesii, 88 

 Astral ray, 74, 77 

 Asymmetrical development. 203 

 Asynaptic genes. 305 

 genie sterilitN, 305 

 in Gossypiuin, 305 

 partially asynapti( . 305 

 sterility, 305 

 ATP, 18l', 420. 421 



