Harper: Explorations in Georgia 1903 147 



Altamaha Grit region, but unknown in the adjacent lime-sink re- 

 gion : Pimis serotina,''\ Sarracenia flavaX Cliftonia monophylla, 

 Nyssa OgecJie,-\\ Pitickneya pubens,'^\l Viburnum miduvi,'' and 

 Baldwinia atropiirpiirca.\\\ Many others having a similar distri- 

 bution might be mentioned, but the above are of particular interest 

 because they extend right up to the edge of the region, and are 

 easily recognized from a moving train, enabling the observant 

 traveler to tell in a few minutes when he enters the Altamaha Grit 

 country from the north or west, • 



On the other hand, many species which are common in other 



■ 



parts of the coastal plain are conspicuous by their absence in the 

 wiregrass country. The following grow both north and south of the 

 region under consideration, sometimes approaching within a mile 

 of it, but are not known within its borders : Phegopferis hexago- 

 noptera, Uzndaria perfoliata, Fagus Americana (and therefore 

 Epiphegus too), Sassafras^ Kalmia latifolia^ Asclepias variegata^ 

 and Conopholis. The same is true of several species confined to 

 h'mestone outcrops or permanent ponds, which it would be super- 

 flous to mention here. Again, several river-bank trees, such as 



Popidus deltoides^ Platauns^ Acer saccharinitm {A. dasycarpmn), 

 Negitndo and Catalpa^ descend the larger streams nearly or quite 

 to the Altamaha Grit and seem to stop there. And there is a 

 considerable number of species which range from the mountains 

 to the inland edge of the Grit and no farther, but these are too 

 numerous to be discussed here. When the whole truth is known 

 the Altamaha Grit escarpment will probablv be found to stop as 

 many species of plants as the fall-Hne 



r 



same reasons. 



does, though not for the 



Of the points of interest visited in the summer of 1903 only a 

 few need be mentioned here. 



On the morning of my arrival in Georgia, after following down 



* Reappears northwest of the lime-sink region. 



t Not known in Alabama. There is probably a gap between the Altamaha Grit 



i 



and Grand Gulf regions which these species have not succeeded in crossing. 



Jin Georgia the distribution of this species coincides pretty closely with that of 

 *he Grit. But in Virginia and the Carolinas it is found farther inland. 



\ Reaches its northeastern limit in the extreme southern corner of South Carolina. 



11 Not known in South Carolina (in which State nothing corresponding to the 

 Altamaha Grit has yet been reported). 



