THE INDIFFERENT COILING OP ARUM SPATHES 



261 



admittedly, not large. Nevertheless, the numbers appear to be 

 sufficiently large to prove conclusively that, in Nature, sinistral 

 spathes are really and persistently more numerous than dextral 

 spathes. It is significant that this is demonstrated by the results 



•iV 



L%'<l!l 



:.|;-tl 





Line or th£ 

 •Seciwm belonr 



® 



B 

 SINISTRAL 



6 



DEXTRAL 



Spathes of Anim maculation, and sections thereof. 



of the thirty-two observations, each being taken separately, and 

 by the total result of the observations, all being taken together. 



It might be interesting to speculate as to whether this small, 

 though marked, majority of sinistral spathes is a feature which is 

 in course of being acquired or in course of being lost. It would 



