ALTAMAHA GRIT REGION OF GEORGIA 



79 



less keep the humus down, if nothing else does. The number 

 of species adapted to growing in such places is limited, and those 

 which are easily disseminated are already established nearly 

 everywhere. The individual cypress trees themselves show a 

 certain amount of stability, for their ages are often reckoned 

 in hundreds of years. 



10. Shallower Pine-Barren Ponds. 

 Toward the inland edge of the Altamaha Grit region, particu- 

 larly in Bulloch, Dooly, Irwin, Berrien, and Colquitt counties, 

 are found shallow pine-barren ponds, which while not essentially 

 distinct from the cypress ponds, usually contain no cypress, and 

 are probably empty of water half the time. The Columbia sand 

 seems to be thinner in these ponds than in the cypress ponds, 

 and is probably sometimes entirely absent. Their flora con- 

 sists principally of the following species. 



Pinus Elliottii 



2 



— 



Nyssa biflora 







Taxodium imbricarium 



2-3 



— 



6 Hypericum myrtifolium 



6-9 



yellow 



2 Ilex myrtifolia 







i Cephalanthus occidentalis 



6- 9 



white 



2 Diospyros Virginiana 



5 



white 



2 Serenoa serrulata 



6 



cream 



i (Phoradendron flavescens) 







i Malapoenna geniculata 







4 Gratiola ramosa 



6-7 





3 Dichromena latifolial| 



5-7 



white 



3 Rudbeckia Mohriil| 



6-9 



yellow and dark purple 



3 Pluchea bifrons^l 



6-9 





3 Aristida palustris^ 



9 



— 



3 Scleria gracilis "^ 



5-7 



— 



2 Ludwigia pilosa 1| 



6-q 





2 Coreopsis nudatal| 



4-6 



purple 



2 Isnardia palustris1| 



5-9 



greenish 



2 Leptopoda Helenium1| 



4-5 



yellow 



2 Breweria aquatical^. 



6-7 



purple 



2 Rhynchospora axillaris % 



5-7 



— 



2 Ludwigia linifolia 



7-9 



yellow 



2 Tridens ambiguusl|- 



6-9 



— 



2 Manisuris Chapmanilf 



8-9 



— 



2 Chondrophora nudatal^ 



8-9 



yellow 



