266 
Commonly distributed in all formations as well on the coast 
as in the interior. 5—250 etm. long, up to 5 ctm. thick stems, as 
a rule adpressed, but in copses they may arise to 105 ctm. above 
the earth. The shoots distinctly separated in long-shoots, upright, 
stretched and straight with most often large oval leaves, and crooked 
knotty lateral short-shoots with oval lanceclate leaves. The hairiness 
of the leaves is much varying from thickly lanate or silkhairy to 
almost glabrous; the former are the most common on the short 
shoots, in heath and table-land, the latter in copses and on herby 
slopes (var. subarctica Lundstr.); but are not rarely found together 
in the same specimen; especially where a stem with hairy narrow 
leaves is broken, broad, obtuse glabrous leaves are seen on the 
rank long-shoots, shooting ont from the stub. The hairiness varies 
also much according to the season. The styles, the hairmess of 
the ovary and the form of the nectary are varying very much, but* 
not in a parallel way (as stated by Lundstrøm: Die Weiden Novaja 
Zemljas) so that no certain systematic separations can be built on 
these circumstances. The limit between S. glauca, var. subarctica 
and S. groenlandica is as stated by Lundström and Rosenvinge 
incertain and these two species ought certainly to be united to one 
single; I have not done it here because of biological differences 
between them as to habits and habitat making one hardly never 
doubt in nature which of the two plants one is before. 
Fam. 30. Betulaceae. 
115. Betula nana L. 
Lge. Consp. Fl. Groenl. p. 112 & 280, Berlin Kärlväxter p. 64, 
Hartz Fanerog. p. 392. 
Not common and only in the interior, in heath and table-land, 
most as espalier, but appearing often gregariously in the habitat, 
so that it is a considerable constituent part of the vegetation. Up 
to 20 ctm. raised above the earth, the stem up to 2 m. long, but 
as a rule but 40—-60 ctm. Flowers from the 20™ of June till the 
15 of July, sets ripe fruit. 
Kangerdlugsuatsiak, Kingorsuak, common, Akiliarisek, Amaga in 
Sermilik, Ikerasausak, Tunok, Sierak, Kordlortok Sö, Amaka (numerous), 
Sarfakajik, Amaga, Udkigsfjæld, Elvbakker, Kong Oscars Havn (Berlin)!, 
Tasiusak (Bay)!, Tasiusarsik and Orsuluiak (Knutsen)!. 
