Chapter VII. 



present marshy levels are the result. Lake Bujukii is a 

 survival of one of these ancient basins. 



In the Mobuku and Bujuku Valleys towards 10,000 feet 

 the damp and mild climate specially favours the development of 



SENECIO AND LOBELIA STUHLMANNI. 



lycopodium, mosses, and lichens which clothe the sides and 

 bottoms of the valleys, and cover the trunks of the living 

 trees or of those that have fallen from old ag^e. At this 

 height tlie valle vs are clad with a dense forest of heaths and 



228 



