40 '-• H. < Kir\n:Li>. 



garis. Aiiiiiiii; llif alxiNc iiu'iitiuiu'il mily llic lnllnwiiijj; aic sliidly liL- 

 oral also in airtic iv^ions: Carex glareosa, C. salina subspathacca, Puc- 

 cinellia phnj^anndcs, J/n/ickrnya, Stellaria Inunifiisa and Mertensia. 



Vory ft'w dl" thi' spcrios in .Xort li-Greenland have fleshy fniits 

 supposed to hc eati'ii i>y aninials, naniely (»nly Vacciniiun niiginosum, 

 V'.ritis-iihva and Enqxirum. Bul nu Ihc (ttlicr hånd some nthcr species 

 inay also hr raftri l>y aninials, i', i. hirds, and the dispersal earried on 

 in that nianner, e. i,'. Pah/gonum rivipanun (hiilhils) and some species 

 With hard sccds. Fnrtlierniore seeds of some species may have been 

 earried into Greenland adhering to featlu'is and fcrt of birds. 



The freshwater, especially the melting snow, disjiers several species, 

 l»nt this does not give any possibility for dispersal at longer distances. 



The main factor for dispersal of arctic piants is the wind. Most of 

 the species have small seeds, easily earried by the winds, and in many 

 cases the frniting scapes with ripe seeds are raised above the snow 

 covering; they break ofT and the whole inflorescense or parts of it roll 

 over the surface of the snow until they reach a sheltered place. This 

 distribntion by wind in the winter-time is, 1 think, the most im])ortant 

 factor for dispersal and is very effective, as it is possible for the seeds 

 in this way to cross the frozcn straits and bays and I hus arrive into 

 othcr coiintrit's. The narrow straits between Inglefield Land (on the 

 Greenland coast) and Ellesmere Land is in this respect only a slight 

 barrier which is easily crossed, and this is the reason why I consider 

 this track as the main way of immigration for the flora of North- 

 Greenland. 



