240 
FLORIDA GEOLOGICAL SURVEY—THIRD ANNUAL REPORT. 
SHRUBS AND WOODY VINES 
Myrica cerifera (myrtle) 
Cornns stricta? 
Decumaria barbara (a vine) 
I tea Virginica 
Rhus radicans (poison ivy) 
Berchemia scandens (rattan vine) 
HERBS 
Tillcmdsia usneoides (Spanish 
moss) (on trees) 
Sagittaria natans (submerged or 
nearly so) 
Cladium effusum (saw-grass) 
Pontederia cordata (wampee) 
Senecio lobatus 
Lemna sp. (duckweed) (floating) 
Rhynchospora miliacea 
Sabal glabra (palmetto) 
Cephalanthus occidentals (button 
bush.) 
Rhapidophyllum Hystrix (needle 
palm) 
Phragmites communis (reed grass) 
Sagittaria lancifolia 
Panicum geminatum (a grass’) 
Mikania scandens (a vine) 
Saururus cernuus 
Iris versicolor (blue flag) 
Scirpus validus (bulrush) 
Dryopteris patens? (a fern) 
Several of these herbs, such as Pontederia, Cladium, Panicum, 
Phragmites, Scirpus, and the two Sagittarias, grow right in the 
water, where it is one to several feet deep, while some of the trees 
grow out toward the edges of the swamps, on little or no peat; 
but there are all gradations between in the matter of location. 
Peat in such places is usually rather shallow, though Jones, 
Tharp & Belden, in their soil survey of Jefferson County, (published 
in 1908 by the U. S. Department of Agriculture), mention the oc¬ 
currence of several feet of peat along the Wacissa River in the 
southern or uninhabited part of that county. I have not taken 
any samples of this kind of peat, but it is probably too full of tree 
roots and stumps to be worked with profit at present. 
A few peat localities with more or less calcareous water, but 
differing from the above topographically or otherwise, will be de¬ 
scribed farther on, among the exceptions. 
