BIBLIOGRAPHY 385 



Paris, R. R., and R. Letouzey. 1960. Distribution of alkaloids in yohimbe. 

 Jour. Agr. Trop. Bot. Appl. 7:256-258. 



Penfold, A. R. and F. R. Morrison. 1927. The occurrence of a number of varieties 

 of Eucalyptus dives as determined by chemical analyses of the essential 

 oils. Part I. Jour, and Proc. Roy. Soc. N. S. Wales 61:54-67. 



Redfield, A. C. 1936. The distribution of physiological and chemical peculiar- 

 ities in the "natural" groups of organisms. Amer. Nat. 70: 110-122. 



Schopf, C, and R. Unger. 1956. Uber Physiologische, durch einen Gehalten 

 verschiedenen Alkaloiden charakterisierte Rassen von Sedum acre L. Ex- 

 perientia 12:19-20. 



Tetenyi, Pierre. 1958. Proposition a propos de la nomenclature des races 

 chimiques. Taxon 7:40-41. 



Wall, M. E., and C. S. Fenske. 1961. Steroidal sapogenins. LXI. Steroidal sapo- 

 genin content of seeds. Econ. Bot. 15:131-132. 



Wulff, N. D., and E. Stahl. 1960. "Chemische Rassen" bei Acorus calamus. 



Naturwiss. 47: 114. 



Yoshida, D. 1961. Changes of free amino acid composition in tobacco leaves 

 during the process of "flue-curing." Plant Cell Physiol. 2:209-211. 



