SURVIVAL OF PLANTS ON NUNATAKS IN NORWAY 



275 



Regarding Nannfeldt's (1940) map of the different Poa arctica races, we 

 find that ssp. depauperata occurs in the region from Jotunheimen to Troll- 

 heimen, and outside this area it is known only from northwestern Iceland. 

 In southern Norway, ssp. elongata is endemic, showing a somewhat wider 

 distribution than the former (Fig. 18). 



Fig. 18. The distribution in southern Norway of the different races of Poa arctica 



(after Nannfeldt, 1940). Area of ssp. depauperata (solid line); area of ssp. elongata 



(broken line); localities of Poa stricta (dots). 



