46 



Scientific Proceedings, Royal Dublin Society. 

 Table of ^^wd-bvoyaucy— continued. 



ANALYSIS OF THE TABLE. 



In order to obtain totals for this list, we select (still working for maximum 

 efficiency), the highest figure given for each species whenever more than one 

 figure is given — whether this refers to seed, fresh fruit, or dry fruit, or to 

 Gruppy's table. We then obtain the following result : — 



It will be seen that of the 786 species experimented on, about 44 per cent, 

 have seeds which sink at once in water ; about 57 per cent, sink within 

 twenty-four hours ; about 87 per cent, within a week ; this last figure closely 

 approximates to Gruppy's estimate of 90 per cent, as representing the 

 proportion of the whole British flora which have seeds which sink within 

 the same period (op. cit., pp. 25, 535), but is arrived at from fuller material, 

 and more directly. 



