No. G24] BLOSSOM COLOR INHERITANCE IN TOBACCO 81 



In further studies of the cross Carmine X Pink, the 

 progenies of many extracted, recessive pink-flowered 

 plants of the second generation have been grown, and 

 all have produced pink-flowered lines. Of the carmine- 

 flowered plants of the second generation, some (the 

 heterozygous) have again broken up into Carmine and 

 Pink, while others (homozygous) have given pure Car- 

 mine lines. 



Crosses Involving Carmine of Pink with White 

 In crosses involving Carmine or Pink with White, 

 white has behaved as a recessive, whether the cross has 

 been made with the white-flowered species N. sylvestris, 

 or with the white-flowered variety of N. tabacum S. P. I. 

 No. 30887 from Honduras. Carmine, however, is not 

 perfectly dominant in these crosses for plants of the 

 first generation are somewhat lighter red than the car- 

 mine itself. In the cross Pink X White (N. sylvestris) 

 the blossoms of the first generation are somewhat paler 

 than the usual pink of the tabacum varieties. In crosses 



