S. C. Harland 205 



3. The New Era pattern of the seed coat is due to a factor E, which 

 has no visible effect in absence of R. 



4. The albino type Para carries the two seed coat pattern factors D 

 and H (either Hj or Hg). They produce no visible effect except in 

 presence of R. 



5. The purple colour of the pod is due to one main factor P. The 

 marked deficiency in the expected number of recessives leads to the 

 view that more than one factor may be involved. 



6. The factors B (black), and E (New Era), show repulsion on a basis 

 probably higher than 1:15. 



7. The factors B (black), and P (purple pod), show repulsion, probably 

 on a basis higher than 1 : 7. 



8. The type of flower colour known as tinged is due to a factor G, 

 dominant to its absence, but recessive to D, the factor for dark flower. 



REFERENCES. 



Harland, S. C. 1919. "Inheritance of certain characters in the cowpea {Vigna 

 sinensis).'^ Journ. of Genetics^ Vol. viii. No. 2. 



Morgan, T. H., Stu|itevant, A. H., Muller, H. J., and Bridges, C. B. 1915. 

 The Mechanism of Mendelian Heredity. 



