154 



MEXDELISM 



CHAP. 



John Parkinson of his gilloflowcrs/ "that those 

 plants that bcare double [lowers, doe beare no seed 

 at all . . . but the oneh' \va\' to ha\e double flowers 

 an)^ \-eare is to save the seedcs of those plants of 

 this kinde that beare single flowers, for from that 

 seede will rise, some that will beare single, and some 

 double flowers." With regard to the nature of these 



I-IC. 4^. 

 Siiiijle and doiii^lc ^lock^ laised from tlic same >iii''!i: naruiit. 



double -throwing strains of singles, Miss Saunders 

 has recently brought out some interesting facts. She 

 crossed the double - throwing singles with pure 

 singles belonging to strains in which doubles never 

 occur. The cross was made both wa}'s, and in 

 both cases all the F^ plants were single. A distinc- 

 tion, however, appeared when a further generation 



^ I\i)adiius\7'crresiyis^ l^ondun, 1629, p. 261. 



