SOUTH WESTERN PARTS OF EUROPE. 51 



Lilium Martagon only upon high craggy 

 mountains in the South of Europe. 



Juncus nemorosus Pollich, only upon high 

 mountains in Portugal ; J. vernalis Ehrh. descends 

 lower, but still belongs to mountains. J. campestris 

 spreads yet lower down ; J. squarrosus on the 

 highest mountains in Portugal. 



Convallaria Polygonatum by the sides of cool 

 brooks in the South of Europe j C. majalis is 

 not found there at all. 



Epilobium grandiflorum, parviflorum, tetrago- 

 num are found near the brooks of Northern 

 Portugal 5 E. montanum, angustifolium are not 

 inhabitants of the most southern parts of Europe. 



Vaccinium Myrtillus. This is the only species of 

 Vaccinium, which extends pretty far towards the 

 South ; in Portugal, however, it is only met with 

 upon high and craggy northern mountains. 



Acer Pseude-Platanus in the North of Spain and 

 Portugal, but not A. platanoides. 



Quercus longipedunculata and brevipedunculata. 

 Both trees become rare in Spain, and are only 

 found on the tops and sides of high mountains. 



D 2 



