PLANTS OF THE FLORISSANT REGION IN COLORADO 185 



The hardihood of the plants which grow in dry soil exposed to hot 

 sun is something to interest the casual visitor as well as the botanist. 

 The structural characters developed to adapt the plants to the different 

 conditions of climate and soil in these mountains are well worth study- 

 ing. Everywhere in the Colorado mountains a useful study can be 

 made of plant distribution as affected by soil, moisture, and exposure 

 to sun. Nowhere has the writer seen better opportunity for such 

 study than in the region of Florissant. 



