The Infll'kxlk uf I-^n vikonmkxt on Plants 

 A, Campanula from 8,300 feet altitude at the left and one from 14,100 

 et at right. B, from left to rijrht, gentians growing in shade and 

 sunlight at 8,300 feet altitude, and alpine form from 13,000 feet. 0, at 

 the left, alpine form, at tlio center, sunlight, and at the right, shade 

 forms of Androsace.- From "Plant Indicators." 



feet 

 sunligl 



Courtesy of Doctor F 



E. Clcmrntu and the Carnegie Institution. 

 221 



