52 fROSS-FF.RTILISATION FN' THE INDIAN COTTONS. 



parent, tlioiitrli no indication of the roniotonoss of tliat cross is 

 obtainable. 



The second case is that of two j)l.int.s raised from a packet of seed 

 supplied as pure Niirina ((i. niboreiim Linn.). These differed from 

 the type in being more vigorous, in having an intermediate leaf 

 factor and the red colour of the plant slightly developed (as far as 

 the veins). Krom one of these |)lants seed was raised and thirty 

 plants were obtained. These thirty i)lants were classified into three 

 groups. 



(a) Foliage and flowei- deep red . . . . 9 



(h) Foliage with red to veins, flower red on vellow . . 13 



(r) Foliage green, flower yellow . . . . . . 8 



Of these groups four, eight and three plants, respectively, were 

 self-fertilised and a sul)sef!uent generation raised from the seed so 

 obtained. They may be considered separately. 



(a) From the four plants of this gi-oup seventy-one were raised 

 and were found to be pure as regards the character under considera- 

 tion and in this respect thev appeared typical of the type 0. 

 aihoreu})}. 



(h) Of the eight plants six gave the three forms {n). (b) and (r) 

 only, in number thirty-five, sixty-four and fifty-five respectively ; 

 one of the remainder gave in addition offspring with the flowers 

 red on white, while the last gave yet another additional form with 

 white flowers. The numbers for these two plants are given below : — 



(1) Foliage full red 



("2) Folinge with colour lo veins 



(.3) Foliage full red 



(4) Foliage with colour to veins 



(.">) Foliage green 



(6) Foliage green 



(c) Of the three plants with yellow flowers two have given 

 thirty-seven ofTspring with yellow flowers only, while the third has 

 given thirty-nine plants with vdlow. and nine with \\liit<' flowers. 



Of the plants thus obtained in the scries given undei' (It) a sul)- 

 secpient generation has been raised from the three with the foliage 



