THE ALTAMAHA GRIT REGION 247 



Pinus palustris, Quercus Catesbaei, Q. cinerea, Q. Marylandica, 

 Liriodendron, Pinus Taeda, P. glabra, Quercus laurifolia, Tax- 

 odium distichum, Osmanthus, Cyrilla, Phoradendron, Hypericum 

 fasciculatum, Myrica pumila, Aristida stricta, Andropogon Vir- 

 ginicus, Eriogonum, Baptisia perfoliata, Kuhnistera and Pteridium 

 are more abundant in the northern or more hilly parts. It is 

 significant that the species in the former category mostly inhabit 

 bogs, shallow ponds, or flat pine-barrens, while those in the latter 

 prefer dry pine-barrens, sand-hills, hammocks, river-swamps, 

 etc., where the seasonal fluctuations of ground-water are greater, 

 thus providing a deeper zone in which the various soil-forming 

 agencies can work, and making a richer or at least less sour soil. 

 The following notes on the distribution of certain species may 

 be of some service to future explorers of this interesting region. 



Pinus Taeda L. On this route almost confined to the bottoms of the Altamaha 

 and Ohoopee Rivers and Pendleton's Creek. 



Pinus glabra Walt. In the hammocks of Seventeen-Mile, Tiger and Pendle- 

 ton's Creeks and the Ohoopee River. 



Taxodium distichum (L) Rich. Seen only in the bottoms of the two rivers 

 which rise north of the Altamaha Grit region, namely, the Altamaha and the 

 Ohoopee. 



Taxodium imbricarium (Nutt.) Harper. Common in shallow ponds south of 

 the Altamaha River, rare north of there. 



Arundinaria tecta (Walt.) Muhl. Seen only in a branch-swamp just north of 

 Huffer, or six miles north of Douglas, Coffee County. More common in regions 

 where the vegetation is on the whole a little nearer the climax condition. 



Serenoa serrulata (Mx.) B. & H. Rather' common in flat pine-barrens and 

 related habitats, south of the Altamaha. Last seen about six miles north of that 

 river. 



Quercus Marylandica Muench. First seen in dry pine-barrens about two miles 

 south of Hazlehurst or twelve miles from the Altamaha River. More frequent 

 northward. 



Quercus nigra L. On this route almost confined to river-bottoms. 



Magnolia grandiflora L. Seen only in the sandy hammocks of Seventeen- 

 Mile and Tiger Creeks. Associated at both places with Pinus glabra and Quercus 

 laurifolia, as is very often the case. 



Sarracenia flava L. This species, which is very rare in the typical flat pine- 

 barrens of Southeast Georgia and adjacent Florida, was first noticed between 

 Allenville and Nashville, Berrien County. It is frequent from there to Douglas, 

 but was not seen often north of the Altamaha River, where its favorite habitat, 

 sloping moist pine-barrens, is scarcer. 



Liquidambar Styraciflua L. Noticed only in the Altamaha River bottoms; 

 but in summer it would doubtless have been seen oftener. 



