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BERRY— TERTIARY FLORAS OF THE 

 Middle Eocene. 



[April 21. 



Middle Eocene floras are less abundant than those of the Lower 

 Eocene since this period is marked by a considerable subsidence and 

 deeper waters in the Mississippi Gulf, which, however, eventually 



Fig. 2. Sketch map showing the approximate rehition of land to water 

 in the Middle Eocene. Stars indicate fossil plant localities, diagonal lining 

 indicates submerged areas. 



became shallower again and duplicated in a measure the Lower 

 Eocene conditions. 



At a number of localities in Georgia and at two or three in north- 

 ern Mississippi and in Arkansas representatives of the Middle 

 Eocene flora have been collected. In Georgia where the plants are 

 associated with shallow water and estuarine invertebrates I found 



