16 



Ainndx <>!' l/ir Sunt/1 A/'r/rtiii 



29th and'SOth degree in the ea.it ; both at its northern and southern 

 extremities ["it becomes narrower. A glance at the map will show 

 that it h;is] a well-defined natural boundary on the west in the 

 shape of a continuous range of mountains running- almost parallel 

 with the Caledou River (PI. VII). The change in the flora westward 



FIG. 2. 



OWN GE- FREE 



points to the above mountain-range being almost a true floral boundary. 



*s 



The southern limits of this region I havejprovisionally regarded to be 

 the Wittebergeii, which separates Basutoland from Barkly'East, though 

 I am led to believe from a study of] what is known of the flora of 

 Aliwal North, Wodehouse, and Barkly East, that when these districts 

 are better explored botauically, the Stormberg liunge will prove to be 

 the southern boundary. On the east the boundary line follows the 

 contour of the Drakensbergen at an altitude of about 5000 ft., below 



