60 



OUTLINE OF PLANT GEOGRAPHY 



Northern Africa * 



The western Mediterranean regions of Africa, both in topog- 

 raphy and climate, much resemble the opposite European 

 coast, this being especially the case in Spain, which is separated 

 from Morocco only by the narrow Straits of Gibraltar. As might 

 be expected, a great many species in Morocco and Algeria, are 



Fig. 8. — Chaparral formation, "Macchia," Island of Minorca. Cistus monspelien- 

 sis, dominant; Myrtus communis, Pistacia Lentiscus, Olea sylvestris, Phyleria 

 angustifolia. Photo., Dr. H. Knoche. 



either identical with European ones, or closely related to them. 

 These, however, are associated with many species of undoubted 

 African origin. 



Parallel with the coast is an extensive system of mountain 

 ranges, beginning in western Morocco, and extending to Tunis. 

 These mountains are highest in Morocco, culminating in the Great 

 Atlas, probably exceeding 12,000 feet elevation. 



In Algeria there are two main ranges, the maritime Atlas, and 

 the Saharan Atlas whose highest peaks are less than 8000 feet, 



1 Englor, A., Die Pflanzenwelt Africas, Die Vegetation der Erde, Vol. 

 IX, 1910. 



