Edith K. Saunders 



219 



TABLE II. 



Results obtained when crossbreds were self-fertilised or bred 

 back with the hairy-stemmed form. 



Experiments* shewing that nudicaulis 

 crossbredsK self or fertilised inter se yield 

 both forms in the simple Mendelian ratio of 

 3 nudicaulis -. 1 pubescem. 



offspring 



Experiment 4 * shewing that midicaulis 

 crossbreds when crossed backv/hh pubcscciis, 

 in accordance with expectation yield tire two 

 forms in the ratio of 1 nudicaulis : 1 pubes- 

 cens. 



* Reciprocal crosses were made in each case. 



and Continental Floras and in numerous works devoted to detailed 

 descriptions of British Wild Flowers and Garden Plants for any hint as 

 to the definite nature of the variation above mentioned. In description.s 

 containing direct reference to this character of the stem as apart fi-oni 

 the plant as a whole, and such are the exception rather than the rule, it 

 is usually stated simply to be tomentose or pubescent, or at most with 

 the amplification " especially above," but without in such case precise 

 Journ. of Gen. vn 15 



