244 FLORIDA GEOLOGICAL SURVEY--THIRD ANNUAL REPORT.

HERBS

Sagittaria lancifolia Cladium effusum (saw-grass) Phragmites communis (reed grass) Juncus Roemerianus (rush) Orontium aquaticum Senecio lobatus Rumex verticillatus Tillandsia usneoides (Spanish moss) Scirpus validus (bulrush) Nymphaea macrophylla (bonnets)
(in stream)
Piaropus crassipes (water hyacinth) (floating)

Saururus cernuus Zizania aquatica? (wild rice) Iris versicolor (blue flag) Isoetes flaccida? Rhynchospora corniculata Scirpus lineatus? Vicia acutifolia? (vetch) Carex alata Carex stipata? Rhynchospora miliacea Peltandra Virginica Cicuta Curtissii

This list of plants has a good deal in common with that of the Apalachicola estuaries, although the two places differ greatly in the chemical composition of their soil and water. I did not make any examination of the peat, but I would not expect it to be very deep, and the parts that are full of trees will doubtless escape utilization for a long time to come.
ESTUARIES OF DADE COUNTY.
On the east side of Dade County there are quite a number of short rivers running from the Everglades to the coast, which, like the Suwannee River, seem to be coffee-colored all or nearly all the time, but must carry some calcium carbonate in solution, too. Also like the Suwannee, they have cut channels in limestone rock, and are of the nature of estuaries for a few miles from their mouths. These are of interest as being almost the southernmost estuaries in the United States, and having a somewhat tropical vegetation. They have not been examined very carefully. Most of the plants in the following list were noted in going up New River from Fort Lauderdale to the Everglades on April 12, 1909, and the remainder on the Miami River about two miles from its mouth a few days earlier.
TREES

Acer rubrum (maple) (New River) Taxodium distichum (cypress) Taxodium imbricarium ?

Sabal Palmetto (cabbage palmetto) Persea pubescens (red bay) Ilex Cassine (swamp holly)