PREFACE. 
n 1898 I took part in the late Dr. Kk. J. V. Sreensrrups expedition 
if to Disko Island, in which it was my task to study the vegetation 
in the localities visited by us. In the report of my work (PorsiLp: 
Bidrag 1902) an account was given, for instance p. 229 ff., of the 
remarkably large southern flora-contingent which is found on the south 
coast of this island. In 1902 I was dispatched again by the Committee 
of Geological and Geographical Investigations of Greenland to study 
the vegetation in the relatively less-known northern part of the island 
which we did not reach the first time. The result of this journey was 
proportionately larger owing to my somewhat larger practice and ex- 
perience, but, nevertheless, it did not modify my impression of South 
Disko’s remarkable floristic peculiarities. 
In the following years the results were revised, and in 1905 the 
report was finished and might have been delivered to the Committee 
for publication. But then the preparations for the establishment of 
the Danish Arctic Station on Disko intervened, and, in 1906, when 
the station was guaranteed, | wanted to take the finished MS. with 
me to Greenland to supplement it further during my intended stay 
there. The Committee most kindly agreed to this for which I here offer 
my sincerest acknowledgement. 
Although South Disko, especially the vicinity of Godhavn where 
I am living at present, is botanically by far the best known locality 
in Greenland, it became apparent all the same, that it still offered fresh 
opportunities for research, and this cireumstance by itself naturally 
suggested to me that the adjacent parts of West Greenland might 
want a further investigation before the floristic characters, which 
distinguishes them from Disko, were defined more precisely. I have 
therefore used what time I could spare from other work in the sum- 
mers of 1906—1918 in such investigations, partly in the island of Disko, 
partly on the main land to the north and south of Disko. About some 
of these investigations (Hare ©, the South- and West coast of the Nugs- 
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