44 



Nr. ;{. C. H. Ostenteld: 



Brayn i)iii|)urascens. 

 Draba cinerca. 



— WahkMibcrj^ii. 

 Potcntilla nivea. 

 SaxilVaj^a slcU. comosa. 

 Arnica alpina. 

 EriffCTon crioccphalus. 

 Cassiopc lelraffona. 



Pediciilaris hirsula. 

 {".arcx misaiidra. 

 Arctaf^rostis latilolia. 

 Hierochloc alpina. 

 Poa arctica. 



Puccinc'llia i)li ryganodes. 

 Lu/.ula nivalis. 



These species have herc been divided into 6 sections, 

 Section I (4) consists of old Norse piants (C. stijlosa and 

 C. pohjgama, however, are doublful) and those of Section 

 II (2) have only been found in the noithern j)arl of East 

 Greenhmd. Section III (12 species) is restricted to West 

 Greenland; il is likely thereforo that these piants came from 

 the west. Section IV (O species) consists exclusively of 

 vascular cryptogams only found in the southern district; 

 these must also probably be regarded as originaling from 

 the west, making 18 species in all. Section V (13 species) 

 consists of widely distributed arctic species found hoth in 

 West and East Greenland; all have a distincl norlhern 

 limit of occurrence in Greenland, and most of them also 

 a southern. Two of them {Carex scirpoidea and Calama- 

 grostis ariind. purpiirascens) are otherwise found almost 

 exclusively in arctic America, and are very rare in Kurasia, 

 and must thus be regarded as immigrants from the west; 

 as to the remainder (11) nothing can be said. Finally, we 

 have Section VI consisting of (19) high-arctic species nearly 

 all found in the norlhernmost part of Greenland, and all 

 ^vith a southern limit of occurrence somewhere on the 

 coast both on the eastern and western sides. Their im- 

 migration roule cannot be stated ; they are most probably 

 older than the maxinium of the ice age. Thus for Group D: 

 6 eastern, 20 western and 30 uncertain (of which 19 pre- 

 sumably glacial). 



