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OUTLINE OF PLANT GEOGRAPHY 



In moist ground, both in the lowlands and hills, elms, poplars, 

 ash, oleander and laurel are found, and in the mountains, from 

 3,000 to 4,000 feet, there is developed a forest containing a variety 

 of trees both evergreens and deciduous. 



First in interest is the Atlas cedar (Cedrus Atlantica) often 

 considered to be merely a variety of the cedar of Lebanon. As- 

 sociated with this are several oaks (Quercus ballota, Q. lusitanica) 

 species common to Spain, and also the fir Abies Pinsapo, also a 



Fig. 10. — Aleppo pine, Cap Formentor, Majorca. Photo., Dr. H. Knoche. 



tree found elsewhere only in Spain. The yew also occurs in these 

 mountains, and many other types common to central Europe, 

 e. g., holly, almond, chestnut, bird-cherry, crab-apple, honeysuckle, 

 maple, goose-berry. Nowhere in Africa are the boreal types so 

 abundant as in the mountains of Morocco and Algeria. 



The alpine floras are poorly developed, but in the highest parts 

 of the Atlas, there is a considerable number of alpine or sub- 

 alpine species which are identical with those in the Pyrenees and 

 Sierra Nevada of Spain, or even the western Alps. In the highest 

 altidudes of the Great Atlas are also several endemic species. 



