SUGGESTED READING 259 



. Die genetische und entwickluugsphysiologische Bedeutung des Cytoplasmas. 



Zeitschr. Ind. Abst. Vererb. 73: 349-366, 1937. 

 WiNGE, O., and O. Laustsen. On a cytoplasmic effect of inbreeding in homozygous 



yeast. Compt. Rend. Trav. Lab. Carlsbcrg, Ser. Physiol. 23: 17-38, 1940. 



XVII. Cytology and Taxonomy 



Anderson, E. Cj'tologj'^ in its relation to taxonomy. Bot. Rev. 3: 335-350, 1937. 

 B.\BCOCK, E. B. Systematics, cytogenetics and evolution in Crepis. Bot. Rev. 8: 



139-190, 1942. 

 , and G. L. Stebbins, Jr. The American species of Crepis. Carnegie Inst. 



Wash. Pub. 504, 1938. 

 , , and J. A. Jenkins. Genetic evolutionary processes in Crepis. Amer. 



Naturalist 76: 337-363, 1942. 

 Bowden, W. M. Diploidy, polyploidy, and winter hardiness relationships in the 



flowering plants. Ainer. Jour. Bot. 27 : 357-371, 1940. 

 Clausen, J., D. D. Keck, and W. M. Hiesey. Experimental taxonomy. Carnegie 



Inst. Wash. Yearbooks 35-40, 1936-1941. 

 , , . The concept of species based on experiment. Amer. 



Jour. Bot. 26: 103-106, 1939. 

 , , . Regional differentiation in plant species. Amer. Natui'alisl 



75: 231-250, 1941. 



Clausen, R. T. On the use of the terms ''subspecies" and ''variety." Rhodora 

 43: 157-167, 1941. 



Cleland, R. E. Analj'sis of wild American races of Oenothera (Onagra). Genetics 

 25: 636-644, 1940. 



DoBZHANSKY, T. Gcnctics and the Origin of Species. 2d ed. New York, 1941. 



Du RiETZ, G. E. The fundamental units of biological taxonomj-. Svensk Bot. 

 ridskr. 24: 333-428, 1930. 



Gaiser, Lulu. Chromosome numbers in angiosperms. I, II, III. Genetica 8: 

 401-484; Bibliog. Genetica 6: 171-466; Genetica 12: 162-260. 1926, 1930. 



GoLDSCHMiDT, II. The Material Basis of Evolution. New Haven, 1940. 



Goodspeed, T. H. Nicotiana phylesis in the light of chromosome number, mor- 

 phology and behavior. Univ. Calif. Publ. Bot. 17: 369-398, 1934. 



Hall, H. M., and F. E. Clements. The phylogenetic method in taxonomy. Car- 

 negie Inst. Wash. Pub. 326, 1923. 



Huxley, J., ed. The New Systematics. Oxford, 1940. 



LoNGLEY, A. E. Chromosome morphology in maize and its relatives. Bot. Rev. 7 : 

 263-289, 1941. 



Oguma, K., and S. Making. A new list of the chromosome numbers in Vertebra I a 

 (March, 1937). Jour. Fac. Sci., Hokkaido Imp. Univ., VI, 5: 297-356, 1937. 



Sknn, H. a. Chromosome number relationships in the Leguminosae. Bibliog. 

 Genetica 12: 175-336, 1938. 



Stebbins, G. L., Jr. Polyploid complexes in relation to ecology and the history of 

 floras. Amer. Naturalist 76: 36-45, 1942. 



. The role of isolation in the differentiation of plant species. Biol. Sympo.'iia 



1. 1942. 



and E. B. Babcock. The effect of polyploidy and apomixis on the evolution 



of species in Crepis. Jour. Heredity 30: 519-530, 1939. 

 TiscHLER, G. Pflanzlichen Chromosomenzahlen, I-IV. TabuUu Biol. 4, 1927; 

 7, 1931; 11-12, 1935-1936; 16, 1938. 



