$2 ON THE BOTANICAL GEOGRAPHY OF THE 



The former is still scarcer than the latfer, and in 

 the most southern regions of Europe disappears 

 entirely. 



Scleranthus annuus and Saponaria officinalis oil 

 high spots in the South of Europe. 



Arenaria trinervia upon pretty high mountains in 

 the South of Europe. 



Stellaria Holostea is fondest of cool places in 

 the South of Europe ; S. graminea is only found 

 there on mountains. 



Lychnis Flos cuculi in cool places in southern 

 Europe. 



Taxus baccata is only found, in the South of 

 Europe, on very high and craggy mountains. 



Chelidonium majus is less frequent in the South 

 than in the North of Europe, and chooses cool 

 places only. 



Hypericum quadrangulare in the cooler spots 

 of southern Europe. 



Fagus castanea. The chesnut tree is peculiar to 

 the middle of France and the North of Italy. In 

 Spain and Portugal it is only found on high 

 mountains and in cool places. Fagus sylvatica be- 



