The Flora-of Disko Island and Adjacent Coast of West Greenland. 21 
Likewise we have everywhere mentioned if the plant fruits, 
and our observations are in this case based, not only upon observations 
and gatherings of seeds and fruits in nature, but also in most cases 
upon seedlings which we have either collected or observed in nature 
or cultivated from gathered seeds. Also this material will be treated 
of in another place. We have especially tried to give minute information 
in regard to these cases in which fruiting occasionally took place or 
was always wanting. 
Finally we have stated — mainly proceeding along the lines laid 
down by Harrz (1. c.) — our observations concerning the hibernation 
of the plants whether it took place under cover of snow, cover of ice 
or snowless. But we have hereby only considered the living parts 
of the plants, buds, live leaves and stalks, and not the withered fruiting 
inflorescences. 
It is only occasionally that we have stated the occurrence of plants 
with withered inflorescence over the snow (»winterstanders«, SERNAN- 
DER), partly because we think, that a plant with empty or unripe fruits 
whose seeds consequently have lost their power of germination, ought 
not to be classed here, and partly because our observations on this 
point are not yet complete. 
Naturally we have made our experiences from the vicinity of our 
home in South-Disco the basis of these biological observations. As to 
species occurring only in more remote regions, which we have but been 
able to see during winter, we have, as far as possible, tried to judge 
of the cover of snow there, which is deducible from the local conditions 
predominant in the place: chiefly the aspect of the rest of the vegeta- 
tion and, to a great extent, the occurrence of lichens on boulders and 
stones. In this connection we have again drawn upon our experiences 
from numerous sledge-travels and excursions during winter, not only 
on Disco, but also far to the south and north of it. Besides travels 
along the coasts we have made numerous trips into the inner highland 
of Disco, through the peninsula of Nuigssuaq and the Ataneq-fiord, 
Nordre Stromfjord, Isortoq fjord to Holsteinborg. 
Numeration. 
In the lst we have incorporated with numbers all indigenous 
species and such varieties or races which had a distribution deviating 
from the main species. 
Without number we have incorporated such species that are 
mentioned in literature, but whose occurrence in the locality we doubt; 
furthermore acclimatized introduced species. On the other hand we 
have not at all incorporated the numerous weeds which now and then 
appear near the settlements, leading but an ephemeral existence. 
