TUNDRA 7 



tundra and the lichen tundra. The moss tundra is the 

 1 noistcr kind, and is formed of peat-hills and puddles. 

 The peat-hills are enormous spongy cushions, built up by 

 the slow accumulations of gradually decomposing mosses : 

 they are frozen inside, and have a velvety covering of 



Fig. 5. Mean Temperature in July reduced to Sea level. 



straight-stemmed mosses, among which a few dwarf 

 flowering plants are sometimes scattered, and in between 

 the mounds wind the marshy tracts or puddles, often 

 grown over with peat-moss. 



The lichen tundra has a drier soil, but requires an 

 abundance of rainfall, drizzles, mists, and atmospheric 



