c. V. L. CHARLIER, TRIENTALIS EUROP^A. 27 



The mean number of leaves in the rosule is 5,7i. It is, 

 however, strongly correlated with the number of flower-stalks, 

 the mean number (M) of leaves in the rosule being for 



M 



Samples with 1 stalk 5,54 

 » »2 stalks 6,38 



» » 3 » 7,8 



B. Heterograde Statistics. 



(All lengths are expressed in millimeters.) 



M = mean value of a character, 

 G = dispersion of a character, 

 N = number of samples measured. 



M a o: M N 



Bootstock: length 7,05±0,60 2,0 ±0,4 0,29 11 



thickness 2,18^0,15 0,5 ±0,1 0,23 11 



Stern: length 126 ±7 37 ±5 0,29 30 



thickness (all samples) .... 0,81 ±0,012 0,19±0,009 0,23 23G 



» (samples with 1 stalk) 0,77±0,015 0,18±0,010 0,24 160 



» ( » » 2 stalks) 0,91±0,020 0,18±0,014 0,19 76 



Flower-stalk: length (all) 34,7 6 ±0,3 4 6,09 ±0,24 0.18 311 



(thickness) 0,3G±0,04 0,04 ±0,03 0,12 28 



Leaves in the rosule: 



a) length of the longest leaf 



samples with 5 leafs .... 30,84±0,7G 8,26±0,53 0,27 119 



» ;> 6 => . . . . 38,24±0,81 9.38 ±0,57 0,24 133 



» » 7 » . . . • 46,6 ±2,2 11,1 ±1,5 0,24 25 



» 8 > .... 47,2 ±3,6 12,1 ±2,5 0,26 11 



b) length of the leaves (samples 

 having 5 leafs) 



I 31,2 ±1,1 8,1 ±0,8 0,26 55 



II 28,6 ±1,0 7,6 ±0,7 0,27 55 



III 23,6 ±0,9 7,0 ±0,6 0,30 55 



IV 18.8 ±0,8 6,2 ±0,6 0,33 55 



V 13,8 ±0,8 5,8 ±0,6 0,42 54 



(samples with 6 leaves) 



I 38,4 ±1.5 9,3 ±1,1 0,24 3S 



II 36,6 ±1,5 9,0 ±1,0 0,25 38 



III 32,8 ±1,5 9,0 ±1,0 0,27 38 



