352 THROUGH ANGOLA 



Acacia Farnesiana, Erythrina suberifera, Tephrosia 

 Vogelii, and splendid specimens of the Brazilian 

 Urucu or Bixa Orellana (Quisafu), met for the first 

 time since leaving Melanje. 



Among useful trees met in this region were the 

 Canarium edule (Mubafo) and the Casalla tree, 

 the leaves and branches of which are used in 

 various mystic rites, to foretell the success or 

 failure of a coming hunt. Pretty local plants were 

 the Catoli, a species of Hibiscus with yellow 

 flowers ; a flowering bush, the N'dongo-a-m'joi, 

 possibly Dolichos urens ; and the Cabodi, a 

 species of Heinsia, a bush with a pretty white 

 tubular flower. Among creepers were Catan- 

 ganhe, a species of Ipomcea; and the Luquello, 

 allied to Vitis vinifera (Linn.). 



The country round Cahungula in the valley of 

 the Luana was arid, and little vegetation grew on 

 the poor soil, which was clay with supervening 

 sand and stone. The trees met with on the richer 

 soil near water were species of Ficus, including 

 F. Mucus o and F. psilopoga, the Erythrina suberi- 

 fera, Odina acida, Bombax pentandrum, and Can- 

 arium edule. Beyond the Luana was the great 

 Kasai River flowing north to the Congo, which 

 forms the north-eastern boundary of Angola, and 

 separates it from Belgian Congo. 



BENGUELLA. In central Angola, from Ben- 

 guella along the railway line to the interior, the 

 general type of vegetation, owing to the high 

 altitude and cold climate, is scantier but somewhat 

 similar to that in the north ; there are no oil 

 palms, and the coastal zone of vegetation of the 



