1915] 



WILLE FLORA OF NORWAY 



85 



tills, which has given to this geological period the name of 



the Ancylus Period. 



By this upheaval of the land, a broad migration road for 



Fig. 4. Map of Scandinavia during the Ancylus Period: the 

 white area represents the remainder of the great ice sheet; region 

 indicated by parallel horizontal lines represents lake (water); 

 region indicated by oblique cross-lines represents land. — Chiefly 

 after De Geer. 



plants was opened from the southeast ^nd east to Norway. 

 Seeds were probably carried over now and again before this 



upheaval of the land — as 



land was vacated by the 



