Fig. 53A. 



m 



Fig. 53B. 



Fig. 53A — The smooth grassy slopes at the junction of the Yanatili (left) and 

 Urubamba (right) rivers near Pabellon. 



Fig. 53B — Distribution of vegetation in the Urubamba Valley near Torontoy. The 

 patches of timber in the background occupy the shady sides of the spurs; the sunny 

 slopes are grass-covered; the valley floor is filled with thickets and patches of wood- 

 land but not true forest. 



