48 OK THE BOTANICAL GEOGRAPHY OF THE 



I leave to others the deduction of further con- 

 clusions from similar analogies, and am contented 

 with having offered the first materials. I now 

 come to those plants which, in the North and 

 middle of Europe, grow in plains, but which 

 are found upon mountains or in cool places in the 

 South. x 



Veronica officinalis, serpyllifolia, Beccabunga, 

 haederifolia are only found in the mountainous 

 cooler regions of Portugal and Spain ; V. Becca- 

 bunga descends the lowest of them. 



Nardus stricta ; only met with on the highest 

 northern mountain tops of Portugal. The same 

 is the case with Scirpus csespitosus. 



Carex ovalis (leporina Autor.) flava, distans, 

 patula, panicea only appear on very high mountains 

 in Spain and Portugal. 



Agrostis vinealis is attached to the cooler regions 

 of the South of Europe. 



Aira flexuosa upon the highest northermost 

 mountains in Portugal j A. caespitosa on elevated 

 spots. 



