F. W. Berry — Pleistocene Flora of Alabama. 387 



Art. XXXIII. — Additions to the Pleistocene Flora of Ala- 

 bama; by Edward W. Berry.* 



A brief contribution to the Pleistocene flora of Alabama 

 was made by the writer in 190 7 f in which twelve species were 

 described from the Pleistocene clays and peat outcropping 

 along the Chattahoochee Kiver near Abercrombe Landing in 

 Russell County, a few miles below Columbus, Georgia. During 

 the past Held season the writer, in company with Dr. L. W. 

 Stevenson, was engaged in studying the Mesozoic sections 

 along the principal rivers of Alabama for the IT. S. Geological 

 Survey. In the course of this work Pleistocene plants were 

 discovered at a number of scattered localities which it seems 

 desirable to place on record at the present time. The local- 

 ities will first be briefly described, after which the forms iden- 

 tified will be enumerated. 



The present contribution extends the range of the ten spe- 

 cies previously recorded from the Alabama Pleistocene and 

 records the occurrence there of sixteen additional forms, bring- 

 ing the total flora up to twenty-eight species. Among these 

 the following existing species have not heretofore been found 

 as fossils : Pinus taeda Linne, Arundinaria macrosperma 

 Michx., Hicoria villosa (Sarg.) Ashe, Poptdus deltoides Marsh, 

 Phoradendro?i flavescens (Ptirsh) Nutt., Acer saccharinum 

 Linne, Acer rubrum Linne, and Osmunda spectabilis Willd. 

 In addition the range of several species in the Pleistocene is 

 seen to be quite different from their present range : for one 

 thing the Fall-line which marks such an important line of 

 demarcation in the distribution of our existing flora seems to 

 have largely lost its significance at the time when the glaciers 

 crowded our eastern Pleistocene flora southward and a large 

 part of the coastal plain was submerged. However, any general 

 conclusions may well be postponed until the completion of the 

 writer's studies of the eastern Pleistocene floras. 



Locality JVo. 1. — This locality is on the right bank of the 

 Warrior River, about 356 miles above Mobile and about 200 

 yards above the mouth of Big Creek. The following section 

 at this point is typical of much of the Pleistocene seen along 

 the Alabama rivers, lacking only the gravel bed at the base of 

 the section which is rjrobably present at this point beneath 

 water level: 



Section. 



1 . Brownish, massive, sandy clay 30 feet 



2. Brownish, laminated, iron -stain eel, sandy clay 6 " 



3. Dark, bluish gray, thickly-laminated, sandy clay wilh 



leaf impressions 8 " 



* Published by permission of the Director of the U. S. Geological Survey, 

 t Berry, Amer. Nat., vol. xli, pp. 6yfe-697, pi. 1, 2, 1907. 



* p 



