119 
rafts and boats with which they navigate the lake. These bul- 
rushes are also used for very many other purposes. The young 
The yi 
ae shoots and the succulent bases of the stems are utilized 
ood. 
ie the City of La Paz, we are within a few hours’ walk 
La Paz we spend a long time and do considerable were so 
ora. 
: em 
bromeliads, several species e ean cadet a dense 
fields of a still known t several 
morning to find thousands of them in view. 
One of th 
type of the tribe is the genus Mufisia, consisting of woody or 
half woody climbers, the tips of the mostly pinnate leaves 
