66 



THE WORLD OF LIFE 



CHAP. 



laden. Numerous tall cactuses {Cereus cczrulescens) are seen 

 growing up from the rock itself, and several stinging and 

 thorny plants. Other genera growing on the rocks are 

 Opuntia, Pereskia, Peperomia, Epidendrum, Tradescantia, 

 Gloxinia, Amaryllis, Bomarea, Griffinia, and many others, 



Fig. 4. — The Campo Cerrado ; Lapa Vermelha Rocks to the Right. 



so that we have here a curious mixture of forest trees and 

 climbers with moisture-loving plants and those characteristic 

 of arid conditions, all growing close together if not actually 

 intermingled. 



Before describing a few of the special peculiarities of the 

 campo vegetation of Lagoa Santa, I will here give some 

 numerical data of interest to botanical readers. The sequence, 

 of the orders in this very interesting flora is as follows ::— -» 



