402 PRINCIPLES OF BOTANY; ETC. 
themselves to change of climate, that they have fol. 
lowed man into almost every zone.-- 
| § 365. | 
From what has been said it follows, that after 
such various and manifold changes, it would be 
very difficult to fix accurately the point from whence 
each plant originally came. We shall, however, 
endeavour to make some general remarks with re- 
gard to the plants of our part of the globe, and their 
most probable dissemination, as we are better ac- 
quainted with this part, especially the northern 
countries, than with others. Greece only we must 
exclude at present, as we know nothing at all of 
its botany. Its flora, however, seems to come from — 
the mountains of Sardinia, from the coasts of Asia 
and Africa, and from the islands in the Archipelago. 
We suppose, then, that plants are disseminated 
from the highest mountains towards the flat coun- 
tries; and, according to this supposition, establish 
five principal floras in Europe, to wit, the Northern 
Flora, the Helvetic, the Austrian, the Pyrenean, 
and the Apenninian Floras. | 
The Northern Flora, originates in the mountains 
of Norway, Sweden, and Lapland. All these nou- 
vish the same plants, which grow in the highest 
North. Scotland with its mountains. appears to 
have cohered once with those of Norway, as both 
have nearly the same plants. | 
Vhe Helvetic Flora, originates in the mountains 
of Switzerland, Bavaria, and Tyrol. The moun- 
tains 
