R. P. Gregory "99 



IV. Red stem (C RF) x Green stem, no colour seen {C rF) 



V. Crosses 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 these 

 plants, the *' Sirdars " cannot be distinguished from the other light-stemmed types. In the FoS 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 items. 



A. 1905 crosses. 



F. selfed 4 families Red stem 70 Light stem (including )^ 



" Sndar ) ) 



Expectation [9 : 7} 69-2 53-8 



B. Dominant white x "Snowdrift." 



fi selfed 8 families Red stem 440 „ 337 



Expectation (9 : 7) 437-1 339-9 



C. Colom'ed, red stem x " Snowdrift." 



Ji-i selfed 11 families Red stem 471 "Sirdar" 185 ^amt colour) ,^^^ 



and green ( 



Expectation {9 : 3 : 4) 483-1 160-69 214-25 



VI. Red stem x " h'y-leaf." 



Red stem Light stem 



Palmate Ivy Palmate Ix-y 



F, selfed 7 families 626 197 177 44 



Expectation ... 587-25 195-75 195-75 65-25 



823 221 



783-0 261-0 



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 sufiices to restore those characters which differentiate 

 " 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 



