Liatris odoratissima, Petalostemon corymbosum, Ver- 

 nonia angustifolia, Calamintha Caroliniana, Lupinus 

 viHosus, and perhaps Olea Americana. Tillandsia 

 usneoides extends to the Dismal Swamp, and Taxo- 

 dium distichum, Rich. (Cupressus disticha,Limi.) to 

 the swamps of Delaware. Sabal Adansoni reaches the 

 neighbourhood of Albemarle Sound ; Pinus australis, 

 MX. extends to the south-eastern counties of Virginia, 

 occupying our great southern tertiary formation to 

 its Northern limit, while, by means of the elevated 

 ridge of the Alleghany, many northern species, as 

 Pinus balsamea, Canadensis, alba and nigra, enter the 

 Carolinas. 



It is exceedingly difficult, perhaps impossible, to 

 indicate a satisfactory line of demarcation ; but, if 

 we pass the Cape Fear, and the Neuse, it seems to 

 me that we ought to stop at the Albemarle Sound, 

 and its most northern tributary.* 



August, 1837. 



* Perhaps James river, in Virginia, might be preferable, affording, as 

 it does, a definite line from the Chesapeake bay to the Alleghany ridge, 

 having .south of it Miegia gigantea, Tillandsia usneoides, Nyssa grandi- 

 denlata, Pinus australis, Olea Americana. Sabal Adansoni, Chamasrops 

 Palmetto, &c. 



