4 ARKIV FÖR BOTANIK. BAND 12. N:0 14. 



The proportion 0,7 5 for samples with one flower-stalk 

 (which lies nearly between the limits indicated by the mean 

 error) suggests the possibility of an explanation of the found 

 proportions on Mendelean grounds. 



2. Number of stamens. There vere 173 samples examined 

 in regard to this character. The number of stamens varied 

 between 5 and 9, the distribution of the 173 samples being 

 the following: 



Summa 173, 1,0000 



The standard number of stamens is, as well known, 7 

 and occurs in 75 % of the observed cases. The uncertainty 

 (= mean error) of this proportion amounts to 3 %. 



For examining the correlation between the number of 

 stamens and the number of stalks, I have counted the number 

 of stamens separately for samples with 1, 2 and 3 flower- 

 stalks. The result was 



Number of samples having 

 1 stalk 2 stalks 3 stalks 



Sum 



135 



35 



Dividing by the total number of individuals of each class 

 we find the following values of the probabilities with 

 their mean errors. 



Probabilities 

 1 stalk 2 stalks 



Number of stamens = 5 

 » » -=6 



» » =7 



» » =8 



» » =9 



0,0074 ± 0,0074 

 0,2370 ± 0,036G 

 0,7334 ± 0,0380 

 0,0222 ± 0,0127 



0,171 ± 0,064 

 0,800 ± 0,068 



0,029 ± 0,029 



