24 BOTANICAL GEOGRAPHY. 



Eaton has supposed that our Atlantic region 

 was divided in two hy 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, 

 AUeghanian, 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, Al 

 gas, &.C. but few Fungi. 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 Linttea, Diervilla, Parnassia- H^'^-- 



