R P. Gregory 99 



IV. Red ttrm (C RF) x Green item, no colour teen (C rF) 



V. CroBiea giving " Sirdars." Red stem (C RF Q) x " Snowdrift " (C rf q) 



In 1905 many plants were discarded as seedlings ; as there is no record of the flower-characters of theae 

 plants, the " Sirdars " cannot be distinguished from the other light-stemmed types. In the Fj's from (" Snow- 

 drift "x dominant white) the flower-characters of a proportion of the family are masked by the presence 

 of the dominant white character, and in such cases the " Sirdars " cannot be certainly distinguished from 

 other light stems. 



A. 1905 crosses. 



F, selfed 4famiUe8 Red stem 76 Light stem (including >^ 



' ' Sirdar ) ) 



Expectation (9 : 7) 69-2 53-8 



B. Dominant white x " Snowdrift." 



Fi selfed 8 families Red stem 440 „ 337 



Expectation (9 : 7) 4371 3399 



C. Ck)lonred, red stem x " Snowdrift." 



2?, selfed 11 families Red stem 471 "Sirdar" 185 Fa^^* colour) ^^^ 



and green ) 



Expectation (9:3:4) 482-1 160-69 214-25 



VI. Red stem x " Ivy-leaf." 



The red stem of " Orange King " (Plate XXX, fig. 8). 



"Orange King" originated in horticulture a few years ago, and was 

 obtained by Messrs Sutton as a sport from " Crimson King." The 

 "Orange King" character of flower and stem is recessive to that of 

 " Crimson King," and in the F^ the two forms reappear in numbers 

 approximating to the 3 : 1 ratio. This result would indicate that 

 a single factor suffices to restore those characters which diflferentiate 

 " Orange King " from " Crimson King." The only other matings of 

 " Orange King" of which I have experience are those with " Snowdrift." 

 The hybrid resulting from this cross is indistinguishable to the eye 

 from the hybrid between "Crimson King" and "Snowdrift." The 



