132 Experiments with Primula sinensis 



PLATE XXXII. 



Fig. 60. Seedling plant of "Ivy-leaf," showing the non-crenate leaves. 

 Fig. 61. Illustrating the cross between " Ivy-leaf" and " Snowdrift " (Fern-leaf, crenate). 

 Top row: "Ivy-leaf" (left), "Snowdrift" (right). 

 Middle: Fi (palmate, crenate). 



Bottom row: the four F2 types (1) palmate, crenate, (2) palmate, non-crenate, 

 (3) femleaf, crenate, (4) fern-leaf, non-crenate. The four types occur in the 

 proportions 9:3:3:1. 

 Fig. 62. Showing the Fi's from crosses of the white-eyed race "Queen Alexandra " with 

 the large-eyed " Primrose Queen," and with " Snowdrift " (ordinary eye). 



Top row: "Primrose Queen," No. 37/9; "Queen Alexandra," No. 34/9; 

 " Snowdrift," No. 1/9. 



Second row: 36/9 Fi from ("Primrose Queen " x " Queen Alexandra"). 

 35/9 Fi from ("Queen Alexandra " x " Snowdrift "). 

 Fig. 63. Showing the Fi& from crosses of the large yellow eye, stellata, with the ordinary 

 eye in the stellata and typical sinensis forms. 



Top row: Stellata, white, ordinary eye. No. 55/9; " Primrose Queen," No. 37/9 ; 

 "Snowdrift" 1/9. 



Second row: 48/9 Fi from {Stellata, ordinary eye x " Primrose Queen"). 

 38/9 Fi from ("Primrose Queen " x «{ne7Mi«, ordinary eye). 

 Fig. 64. Showing the variation in the form of the corolla in a plant No. 54/9 and its 

 offspring. 



Top row : flowers from the same plant, No. 54/9. 



Second and third rows : Flowers from four plants illustrating the various types 

 produced by the self-fertilization of 54/9. The flowers from each plant are arranged 

 in pairs, one above the other. The first three represent the nearest approach to 

 sinensis, the intermediate and the stellata types in the Giant form. The last pair of 

 flowers are those of a stellata plant which did not possess the Giant character of its 

 parent. 



