I96 MAINE AGRICULTURAL EXPERIMENT STATION. 1902. 



SUMMARY OF VARIATIONS. 



When in full bloom the petals vary in color from typical white 

 or pink, through white with green centre stripe to solid 

 green. Those petals which are entirely green usually persist 

 on the plant regardless of the presence or absence of leaves, 

 and in those which are merely white-margined the green por- 

 tions usually persist after the white parts have withered. Such 

 persistent petals, the sepals and the leaves, gradually become 

 purplish-brown in color, remaining thus colored until the plant 

 withers to the ground. Usually by the time the carpels of the 

 normal plants have attained their full size all traces of the 

 abnormal plants have disappeared. 



The following figures will show the limits of variation in size 

 of the different parts of the plants which have been tabulated : 

 Length of plant stem varies from o mm. to 340 mm. 



Length of petiole o 160 



Width of leaf blade 22 124 ' 



Length of leaf blade 30 157 



Length of peduncle 2 220 



Length of sepal stem o 44 



Width of sepal blade 9 37 



Length of sepal blade 26 78 



Length of petal stem o 64 



Width of petal blade 8 50 



Length of petal blade 18 80 



Length of filament 1 34 



Length of anther ... o 20 



Length of ovary 1 30 



Length of ovary stalk o 23 



Length of style 2 27 





