April, 1908.] 
The Vegetation of Cedar Point. 
299 
The Andropogon Dune Formation. 
Facies: Andropogon furcatus. 
Secondary Species: 
Artemisia caudata, Andropogon scoparius, 
Panicum virgatum. 
The development of this formation on Cedar Point is far in¬ 
ferior to its development at Presque Isle. On Cedar Point the 
formation is usually more or less mixed with the foregoing for¬ 
mation, as in parts of Ridge 7, and later passes into the following 
structure: 
The Toxicodendron Thicket Formation. 
Facies: Toxicodendron pubescens. 
Secondary Species: 
Populus deltoides, 
Parthenocissus quinquefolia, 
Quercus velutina, 
Salix amygdaloides, 
P tele a trifoliata, 
Poa compressa, 
Celastrus scandens, 
Rhus aromatica, 
Fraxinus americana, 
Vitis vulpina, 
Andropogon furcatus , 
Juniperus virginiana. 
This formation is characterized by several lianas or semi¬ 
lianas, which, together with young trees of several species, con¬ 
stitute a more or less definite thicket formation above which 
stand the older cottonwoods. The last named species is here 
probably best regarded as a relict of the earlier formations. The 
Toxicodendron Thicket Formation is best exemplified on Ridges 
G(l)]and 6(2), (Moseley). 
The Pinus-Juniperus Forest Formation. 
Facies: Juniperus virginiana, 
Pinus strobus. 
Principal Species: Vagnera stellata. 
Secondary Species: 
Quercus velutina, 
Toxicodendron pubescens, 
Populus deltoides, 
Fraxinus biltmoreana, 
Platanus occidentalis, 
Opuntia humifusa, 
Celastrus scandens, 
Asclepias tuberosa, 
Prunus serotina, 
Panicum scribnerianum, 
Equisetum robustum. 
Quercus imbricaria, 
Tilia americana, 
Fraxinus americana, 
Salix amygdaloides, 
Ulmus fulva, 
Cyperus schweinitzii, 
Rubus procumbens, 
Arabis laevigata, 
Rhus aromatica. 
Smilax herbacea, 
