312 



BERRY— TERTIARY FLORAS OF THE 



[April 21, 



The fossil plants of this age are unfortunately rare and are as 

 yet unknown south of the Maryland-Virginia area. The accom- 

 panying sketch map (Fig. 4) shows in a generalized way the upper 

 Miocene conditions after the resubmergence of the area, the maxi- 

 mum emergence during the lower Miocene being unknown. The 



Fig. 4. Sketch map showing the approximate relation of land to water 

 in the Upper Miocene. Stars indicate fossil plant localities, diagonal lining 

 indicates submerged areas. 



land masses southeast of the mainland are to be noted as well as 

 the supposed directions of the ocean currents. 



The known fossil plants from the Atlantic coast Miocene, 

 exclusive of diatoms, include the following species from the Mary- 

 land area near Washington described by HoUick :'-' 



^Hollick, Md. Geol. Surv., IMiocene, 1904, pp. 483-486, tf. a-b. 



