8 ARKIV PÖR BOTANIK. BAND 12. N:0 14. 



From these numbers I obtain (»Grunddragen» Kap. UT): 



31 = 126™°^ ± 6,8 



(7= 37 ± 4,8 ■ 

 and 



g:JI = 0,29. 



Regarding the thickness of the stem I have examined 

 236 individuls. Ordering them into classes having a class- 

 breadth [w] of 0°^™,io, I have obtained the following frequen- 

 cies (F). 



Thickness of the stem 

 N = 236, w= 0mm 10 



These numbers give 



J/ = 0,813 ± 0,012, 

 G = 0,189 ± 0,009. 



'.' o : M = 0,233 



The thickness was measured with the help of an ocular- 

 mikrometer, which allowed the evaluation of the thickness 

 with an average error of 0™°^,oi. Generally the evaluation 

 was rounded up to the nearest 5-hundredth of a millimeter. 



For examining the correlation between the thickness of 

 the stalk and the number of flower-stalks, I have discussed 

 separately the values of the thickness for samples with 1 

 stalk and with 2 stalks. There were 160 samples with 1 

 stalk and 76 with 2 stalks, which gave: 



