VI 
Greenland is treated, whereas Iceland, in reality belonging to the 
northern Pine-wood-Region, is omitted. Further, the Scandinavian- 
Peninsula is entirely left out, though its utmost northern part may 
looked upon as Arctic. 
The localities in the territory in which each species is found, 
are enumerated. The starting point is the Behring Strait, thence 
going eastward. A (!) after the locality, states that we have seen 
specimens from the spot; the other statements rest on literature. 
Further is stated, under each species, all the lists from the Arctic 
territory in which it is mentioned, giving the name of it, used there, 
in such a way though, that where a collective survey is found, e. g. 
such as J. Lange: Conspectus Florae Groenlandicae or A, G. Nathorst: 
Spetsbergens kdrlvdxter, the preceding lists are not set down, if 
no particular reasons have necessitated it. The synonyms are 
only mentioned if they are of particular Arctic interest, and as to 
the commonly used specific names, the name of the author is added 
without reference to place or time of publication. The European 
authors are principally adhered to in nomenclature. 
The time for growth and blossoming is not given, as the 
knowledge of it is too limited. 
The name of the author of the revision is attached to each 
order, so that the sole responsibility rests on him. Nevertheless, 
after Mr. Gelert’s death I have added several localities, taken from 
lists published after that time, and in one instance (Calamagrostis 
hyperborea Dusén) | have made a correction, while I have changed 
nothing else, even if I cannot agree with him, e. g. in his view of 
Phippsia’s and Catabrosa’s distinction as two genera far removed 
from each other. 
The bulk of figures of the habit is drawn by Mrs. I. Raun- 
kier, a few by Mr. Thornam, while analyses are by the author. 
The consulted works are almost all quoted in an abridged, 
though easily intelligible form. A bibliography of all the abridge- 
ments is given on the following pages. 
Copenhagen, May 30+h, 1902, 
THE EDITOR. 
