With regard to the limit between the Arctic and more 

 southern flora of Desmidiaceae I only have to confirm what is 

 stated by Borgesen d. c. p. 4), still I have found Euastrum 

 ohlongum as far north as in Jameson Land. 



I have not met with Cladophora, but with Pediastrum right 

 up to Sabine Ö. 



The dimensions are always in /i, where no other statement 

 is given. 



Li = Lat. Isthm. 



The figures have all been drawn by means of a drawing 

 prism (Seibert's microscope Objectiv V, Ocular I). 



I am indebted to Dr. Borge sen for his valuable help; 

 I also have to thank Miss E. H all as for having determined 

 the species of Oedogonium and Bulhochœte. 



Copenhagen, Botanical Museum, July 1904. 



List of habitats. 



Kap Dan 65° 31' 



Tasiusak 65° 37' 



Kordlortok 65° 40' 



Amaka 65° 40' 



Tunok 65° 52' 



Stenô 66° 2' 



Falkefjæld 66° 4' 



Kingorsuak 66° 5' 



Kap Warming about ... 67° 1' 



Kap Dalton 69° 25' 



Dunholm 69° 55' 



Liverpool Kyst in Hurry 



Inlet 70° 50' 



Jameson Land Nordost- 

 bugt 71° 10' 



Flemhig Inlet 71° 38' 



Canning Land about ... 71° 40' 



Kap Seaforth 71° 49' 



Forsblads Fjord 72° 30' 



Kap Borlase Warren ... 74° 1' 

 Sabine Ö 74° 30' 



