GIBRALTAR PLANTS. 153 



Quercus coccifera, L. 

 Ilex coccifera, Clu. 

 Vulg. Carrasco. 



Hab. Mediterranean region of Europe. Asia Minor. 

 North of Africa. 



OBS. Generally found under the shade of larger trees. 



SALICINE^E, Rich. 



Populus alba, L. Lrt^u ..... <.L 

 Vulg. Alama bianco. 



Hab. Britain, Middle and South of Europe. North of 

 Africa. 



OBS. Cultivated extensively. 



CONIFERS, Juss. 



Ephedra fragilis, Desf. 



E. distachya, Sched., Boiss., non Linn. 

 Vulg. Yerba de coyunturas. 



Hab. South of Portugal, Spain. Balearic Isles. Sar- 

 dinia. Arabia Petraea. North of Africa. 



OBS. Communicated by Dr. Lemann. 



Ephedra altissima, Desf. 



Hab. North of Africa. South of Spain. 



OBS. The eastern side of the rock is the particular locality of 

 this interesting plant. It is easily distinguished from the last 

 species, from its joints not disarticulating so readily, and its 

 branches being longer and tortuous. 



