24 
BOTANICAL GEOGRAPHY. 
Eaton has supposed that our Atlantic region 
was divided in two by the Potomac, the Nor- 
thern, and the Southern that winds round the 
mountains to the far West including all the 
Western States. 
These are of course exclusive of the three 
great regions of the Southern parts, Mexico, 
Central America and the Antilles. 
I have rectified these views since 1832 by 
increasing our regions to seven; to which I 
have given the names of Boreal, Canadian, 
Alleghanian, Floridian, Louisianian, Texan 
andOrigonian: each of these is perfectly distinct 
and distinguished both by physical features and 
peculiar Genera of plants. 
1. Boreal Region , including the Polar re- 
gion, Greenland, Iceland, Labrador, Hudson 
Bay and New Sibiria. This wide region, is 
very similar to the Boreal parts of the Old 
Continent, Lapland and North Siberia, forming 
perhaps only one wide circle around the Arctic 
Pole. It is the poorest of all the American 
Floras, with very few trees and shrubs, chiefly 
evergreen, and with the lower classes of plants 
preponderating, such as Mosses, Lichens, A1 
gas, <fec. but few F ungi. The floral season is 
very short, hardly three months from June to 
August. 
2. Canadian Region . This forms a broad 
belt across the Continent including Nova Sco- 
tia, New England, Canada, the countries 
around the Lakes, and the vast lacustral plains 
of the West. It has spurs in the northern Al- 
leghanies, the Saranac, Taconick, and Kiska- 
nom mountains. It is distinguished by the pre- 
vailing Firs, Willows, and Birches, the Gene- 
ra Linnea , Diervilla , Parnassia , Rubns , 
