BOTANY. 



225 



factory definitions of the sub-districts. Even in 

 the botany, which has been more studied than the 

 other two sciences, I only know of three collec- 

 tions worth mentioning on the Central Ridge and 

 Ruwenzori. 



There is a curious similarity between South 

 America and Africa which may, perhaps, be ex- 

 plained by meteorologists. 



Fig. 33. — In the Victohia Region. 



Starting from the east coast, north of Mombasa, 

 and crossing the continent one finds the following 

 floral characters : — (1) A very wet jungle ; (2) a 

 dry thorn region, in parts desert ; (3) a fertile 

 mountainous country of woods and steppes ; (4) a 

 much drier country (Victoria region) ; (5) a moun- 

 tainous region with woods and steppes and cloud 



16 



