Atlantic or Eastern Forest Region. 11 



(1876), Allen (1878), Packard (1883), Jordan (1883), Hartlaul) & 

 Newton (1886), and Heilprin (1887). 



The three divisions will be considered separately. 



Atlantic or Eastern Forest Region. — Many writers have recog- 

 nized an eastern forest region stretching from the plains to the 

 Atlantic and in' a general way from the boreal or coniferous 

 forests of the north to the alluvial lands of the South Atlantic 

 and Gulf States ; Init its northern and southern limits have 

 been by no means agreed upon. Schouw defined these V)ound- 

 aries as the limit of trees on the north and latitude 36° on the 

 south, and named the region Michaux's Realm or Realm of Asters 

 and Solldngos. Berghaus retained Schouw's southern boundary, 

 but took off a broad belt on the north, which he named the Realm 

 of Coniferous Forests. The resulting northern limit as shown on 

 his map (1838) agrees closely with that adopted by such recent 

 writers as Wallace (1876), 'Allen (1878), Packard (1883), and 

 Heilprin (1887), all of whom, on the other hand, carry its south- 

 ern b()undary south to the Gulf of Mexico, thus making it co- 

 extensive with the Atlantic or Eastern Proinnce already referred to. 



Several early writers, among whom Schouw and Berghaus were 

 prominent, recognized this region in the east, but knew nothing 

 of the great interior plains, and consequently spoke of it as ex- 

 tending all the way to the Rocky mountains. 



The extent to which this Eastern Forest region has been 

 recognized, together with the approximate north and solith 

 l>oundaries assigned it, will appear from the following tal)le : 



Note. — In the columns showing limit on the north and south the fol- 

 lowing abl>reviations are used : L. T. = northern limit of trees ; C. F. = 

 northern coniferous forests ; A. = Austroriparian or Louisianian region; 

 G. = Gulf of Mexico. 



^ , , n- • ^ • Lunit on the Based j, , 



Date Author A'cmie given to region ^yort/i South on 



1822 Schouw Asters and Solidagos . L. T. A. Plants... 1 



18.30 Pickering Flora of United States C. F. G. Plants.. . . 2 



1838 Berghaus Asters and Solidagos . C. F. A. Plants... 1 



1843 Hinds Iroriuoian C. F. G. Plants ... 1 



1848 Frankenheim... New England C. F. A. Plants... 2 



1854 Agassiz AUeghanian C. F. A. Animals . 2 



1856 Gray Northern States (?) A. Plants... 1 



1859 Le Conte Eastern (?) G. Insects ... 1 



1859 Cooper Appalachian C. F. G. Forests . . 1 



