250 THE NATURALIST IN NOEWAY. 



E. Acetosella; 1161. By Jerkin, below the birch- 

 limit. 



R. domesticus. Grows near houses by Jerkin and 

 Fogstuen. 



Oxyria digyna; 14. Common over the whole fjeld, 

 up to the perpetual snow. 



Polygonum viviparum; 13. Over the birch-limit; is 

 often seen with pink flowers. 



P. aviculare; 803. Found above the birch-limit on 

 Harbakken. 



P. Convolvulus; 741. Up to the barley-limit, by 

 Tofte. 



Koenigia Islandica ; 418. Found everywhere on 

 marshy ground. 



THYMELE^E. 



Daphne Mezereum ; 268. Above Kustgaard, on 

 Harbakken. 



EUPHOEBIACE^E. 



Euphorbia helioscopia; 725. Up to the limit of bar- 

 ley, by Tofte. 



Urtica urens ; 739. Near mountain-hovels. 

 U. dioica ; 746. Near mountain-hovels, and more 

 common than the last. 



AMENTACE2E. 



Betula alba; 1467. Up to ^aarstien on Dovre- 

 fjeld, 3193 feet above the level of the sea. 

 B. humilis. Occasionally found on the fjeld. 

 B.nana; 91. Grows everywhere on the fjeld up 



