New Zealand Flora , with a Reply to Criticism. 345 
As I find that many biologists are not familiar with the method of 
handling these problems by aid of statistics, so that rows of such figures do 
not bring the facts clearly before them, I have in the diagrams 1-5 
presented the result by a graphic method, showing roughly, by ‘ circles' 
drawn round their outermost localities, the actual longitudinal range of the 
species in Ranunculus (genus with both wides and endemics, and southern 
maximum ; herbs), Pittosporuni (endemics only, northern maximum ; trees 
and shrubs), Gunnera (endemics only, southern maximum; herbs), and 
Cotula (wides and endemics, southern maximum; herbs), as well as 
Haastia (endemic genus, southern maximum; herbs). But it must ‘ be 
