ASIA 



moisture, and, when it is overgrown with low shrubs, 

 may become a heath. 



Among the most curious features of these arctic land- 

 scapes rank the ' polygonal floors,' or floors of hardened 



Tundra & Lofty Mountain EH3, Taiga orPi ne For est TTTI , Steppe f^531 

 Cool DeeiduousF. 1=1, Medi terran ean W MM, S »mme rRainE MM 

 Monsoon fo Equatorial F.MMI,Savana^^^i, Scrub C3HD ,Dese rt 



Fig. 6. Vegetation of Asia. 



mud with cracks arranged in polygonal patterns. Out 

 of these slits the lines of tiny plants arise in quaint 

 devices not unlike fancy box edging. 



The monotony and desolation of the landscape are 



