Contributions to the Flora of West Greenland. 191 
in W. Greenland (about the 70th parallel) only 13, and in the whole 
of West Greenland (from 60—80th) 37 species occur above the 
1000 m. line. 
If then the snow-line in Scoresby Sound lies at а much greater 
height than on the W. Coast, it is only natural that arctic types of 
plants should also range higher since the latest expeditions have shown 
that vascular plants will thrive on icefree ground as far north as the 
land extends towards the pole. It is more surprising to find that in 
Scoresby Sound several plants, which in W. Greenland are southern 
and lowland types, reach very considerable altitudes. In this group we 
have: Carex Macloviana (625 т.); Juncus trifidus; Rumex acetosella; 
Sagina [лппаег; Viscaria alpina (all 785 m.); Arabis alpina (1255 m.); 
А. Holboelli (940 m.); Draba aurea and Rhodiola rosea (785 m.); Arcto- 
staphylos alpina (720 m.); Veronica fruticans (940 m.); and Pinguicula 
vulgaris (625 m.), all of which are very rare in W. Greenland in the 
neighbourhood of the 70th parallel on the mainland, and, even on South 
Disko they are restricted to the most favourable stations in the lowland. 
Conelusion. 
Of the two coasts of Greenland the west coast may safely be con- 
sidered by far the best known both as regards the vegetation and the 
general clımate features. It may safely be assumed that the flora of 
the Nordost Bugt requires a period of growth, at least from the end 
of May to the end of September with a mean temperature in July from 
6—8° C. for the coastal and inland districts respectively. 
As our present information on the flora of Scoresby Sound, at least. 
in the respect of the inland districts, rests on the observations of one 
botanist only, made during one season and under most unfavourable 
conditions, we may safely predict that further investigations will prove 
that the flora is not poorer than that of the Nordost Bugt. 
This prediction is justified by the two considerations: 
1) the number of southern species known to occur in Scoresby Sound 
is but one species less than in the Nordost Bugt; 
2) nearly all southern types in Scoresby Sound have a greater range 
vertically. 
We may safely suppose that our present conception of the climatic 
conditions of the Scoresby Sound region, resting upon one single series 
of observations, is far from giving a correct idea. The flora of this 
Eastern region proves, that the sum of the temperatures 
from May to September cannot be less than in the Nordost 
Bugt of West Greenland and that consequently the isotherm 
for 8°C. of July probably reaches Scoresby Sound. 
