ALTAMAHA GRIT REGION OF GEORGIA 93 



as on the adjacent sand-hills. (Perhaps this indicates that they 

 are pollinated by the same insects.) There are 8 anemophilous 

 species, 13 with white flowers, 7 cream, 7 yellow, 2 purple, 2 red, 

 and 3 orange. 



The list shows 56 species in about 47 genera and 35 families. 

 .35.4% of the angiosperms are monocotyledons. Orchidaceae 

 is the largest family and Sarracenia and Habenaria the largest 

 genera. Grasses and sedges are scarce. 



The generalized ranges of these plants do not differ much from 

 those in the moist pine-barrens and branch-swamps, except that 

 a somewhat larger proportion of them grow in similar habitats 

 in the glaciated region of the north. i 



15. Non-Alluvial Creek-Swamps. 

 Entering the swamp of a creek or small river from the sand-hill 

 (left) side, we usually hnd that part of it above the reach of inun- 

 dation to be kept perpetually moist by springs issuing from the 

 sand-hills. Being usually densely shaded by large trees the tem- 

 perature of such a place is of course considerably lower than that 

 of the sand-hills on one side and the alluvial swamp (with its 

 warmer water) on the other. A splendid example of such a swamp 

 can be seen at Gaskin's Spring on Seventeen Mile Creek in Coffee 

 County. (See Plates XIII and XIV, Fig. j.) This has been visited 

 in February, May, July, and September, and in four different 

 years, and most of the following species have been oberved there. 



5 Magnolia glauca 



4 Gordonia Lasianthus 



4 Persea pubescens 



3 Pinus Taeda 



2 Cliftonia monophylla 



1 Osmanthus Americana 



o Pinus serotina 



3 Itea Virginica 



2 Leucothoe axillaris 



2 Vitis rotundifolia 



2 Viburnum nitidum 



1 Ilex coriacea 



1 Viburnum nudum 



1 Smilax la uri folia 



1 See Rhodora, 7: 69-80, April, 1905. 



4-7 



white 



7-9 



white 



3-4 



— 



3-4 



white 



3-4 



— 



4-6 



white 



4-6 



white 



5 



cream 



4 



white 



5-6 



white 





white 





cream 



