TETRAPLOIDS 



119 



Belling, and Farnliam. In appearance it is described as 

 differing in several respects from the diploid type. The 

 diff'erences in the capsule, flower, and stamens in the 

 diploid (second column) and tetraploid (fourth column) 

 are shown in Fig. 73. 



*■ A 



-^if!': 



Haploid 



(m) 



Fig. 73. 

 Capsules, flowers, and stamens of haploid, diploid, triploid, and 

 tetraploid D. stramonium. (After Blakeslee, in Journal of Heredity.) 



