The Plant-Life of Hare Island off the coast of West Greenland. 279 
having their northern limit here and another 50 occurring together 
with the preceding only on the south coast or in the fjords, although 
they are found a little N. of Disco. By investigaling the biology 
of these southern types, I have been able to point out; that they 
— as far аз I know— without exception ripen their fruits 
and seeds late in the autumn, and that they only occur 
on spots well covered with snow during winter. They 
are thus almost totally prevented from migrating longer 
distances and as the tracts of coast which connect their 
stations are unfitted for them, they are obliged to remain 
on the spots where they are. Hence we must regard the 
small element of southern types on Hare Island as well 
as the far larger one on Disco as lingering evidences 
(relics) of a milder climate in postglacial times. 
Assuming the isolated colonies of southern plants on the coast 
of Greenland as relics, we are also in accordance with facts proving 
a deterioration of the climate of the arctic regions during the last 
epoch of the postglacial time, as they have been elucidated by 
Hooker, NATHORST, NANSEN, GUNNAR ANDERSSON, Ар. 5. JENSEN, 
and others. 
Literature of the Geography and Botany of Hare Island. 
К. L. GiEesecke: Bericht einer mineralogischen Reise in Grønland, etc. Kbh. 1878. 
рр. 260—262. 
J. С. Зснутне: Blade af min Dagbog paa en Rejse i Nordgrønland i Sommeren 1838. 
“Portefeuillen” 1839. 2. рр. 110—122, рр. 159—178. Kbh. 
J. TAYLOR: Notice of flowering plants and ferns collected on both sides of Davis 
Straits and Baffin's Bay. Bot. Soc. Edinb. New Series vol. 16. 1862. 
H. Rink: De danske Handelsdistrikter i Nordgrønland, etc. Kbh. 1852. 1855. 
K. J. V. STEENSTRUP: I. Om de kulførende Dannelser paa Øen Disko, Hare-Øen og 
Syd-Siden af Nugssuak’s Halvøen 1 Nord-Grønland. Vidensk. Medd. Naturh. 
For. Kbh. 1874. 
— II. Beretning om Undersogelsesrejserne i Nord-Grenland i Aarene 1878- 80. 
Meddel. om Grenl. 5. 1883. 
— III. Bidrag til Kjendskab til de geognostiske og geographiske Forhold i en Del 
af Nord-Gronland. ibd. 4. 1883. With a map Бу В. В. J. Hammer & К. J. V. 
STEENSTUP. 
— IV. Om Forekomsten af Forsteninger i de kulforende Dannelser i Nord-Gron- 
land. ibd 5. 1883. 
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