No. 585] 



INHERITANCE OF HABIT 



561 



nutation. This factor may be called T. The cause of the 

 various degrees of the climbing habit has not been deter- 

 mined with any degree of certainty. The contorted stems 

 of erect bush forms are probably caused by T. 



II. The factors A, L and T may be present in any 

 possible combination, giving rise to the various habit 

 types of beans. 



III. "When the types are crossed among themselves 

 they behave approximately after the manner sketched in 

 Table II. 



BIBLIOGRAPHY 



1. Emerson, R. A. Heredity in Bean Hybrids. Rpt. Agr. Exp. Sta. Neb. 17 



(1904), pp. 34-43. 



2. Emerson, R. A. Inheritance of Sizes and Shapes in Plants. Amer. Nat., 



44 (1910), pp. 736-46 (1910). 



3. Emerson, R. A., and East, E. M. Inheritance of Quantitative Characters 



in Maize. University of Nebraska Agr. Exp. Sta. Research Bulletin 2 

 (1913). 



4. Jarvis, C. D. American Varieties of Beans. Cornell University Agr. Exp. 



5. Tracy, Jr., W. W. American Varieties of Garden Beans. U. S. D. A. 



Bureau Plant Ind., Bulletin No. 109. 



6. Webber, H. J. Preliminary Report on Pepper Hybrids. A. B. A. 



Reports, VII and VIII, p. 188. 



