296 



SUMMARIES OF THE HISTOLOGIC CHARACTERS, ETC. 



very much less influence on the properties of the hybrids 

 than the pollen parent; in Sets 2 and 3, as the pollen 

 parent, it is less effective than the seed parent; and in 

 Set 4 it is about equally effective as the seed parent. 

 N. poeticus poctarum appears in Sets 1, 5, and G as the 

 pollen parent. In Set 1 it greatly dominates the seed 

 parent in its influence; in Set 5 it is of somewhat less 

 potency than the other parent ; and in Set 6 it is almost 

 completely dominated by the seed parent. N. abscissus 



is the seed and the pollen parent, respectively, in Sets 7 

 and 8. In the former, it somewhat dominates the pollen 

 parent, and in the latter it is distinctly subordinate to the 

 seed parent. N. iriandms albus is the pollen parent in 

 Sets 11 and 12, in the former it being almost wholly sub- 

 ordinate, and in the latter of about equal value to the 

 other parent, in influencing the properties of the off- 

 spring. N. madame de graaff is of especial interest 

 because of its being a hybrid in Set 8, and the seed 



TABLE C 8. Iris. 



