TAXONOMIC DIFFERENTIATION 



95 



Fig. 5. The 

 Scandinavian 

 distribution of 

 Poa arclica and 

 its subordinate 

 taxa. (After 

 N an n f eld t, 

 1940.) 





,'<i. 



■r^ 



■.v-/' 



t 





^^ ' 



?^. 





^"^k; 

 "*%' 



The Scandinavian distribution of 

 Poa arctica R. Br. 



• locality for ' stricta (Lindeb) Nannf 

 V • caespitans (Simm) Nannf 



A __ ^, • tromsensis Nannf 



total area of ' depauperata (Fr) Nannf 



.-- •elongata (Bl) Nannf 



O locality for other races. 

 — approximate area of tfie northern uni- 

 centric' (and northern part-area of the 

 bicentric") mountain species 



