238 FLORIDA GEOLOGICAL SURVEY-THIRD ANNUAL REPORT.
CHOCTAWHATCHEE RIVER.
Although the Choctawhatchee River, unlike the Apalachicola, rises in the coastal plain, its head-waters are in the red clay hills of the Eocene region of Alabama, and it seems to be always more or less muddy, though naturally considerably less so than the Apalachicola.
On Sept. 22, 1910, I went in a launch from the head of Choctawhatchee Bay about twelve miles up the river, and for about half this distance the swamps seemed to be essentially estuarine, and not very different from those of the Apalachicola at corresponding distances from its mouth. The following plants were noted at least twice in the first half dozen miles or so.
TREES

Taxodium distichum (cypress) Magnolia glauca (bay) Nyssa Ogeche (tupelo gum) Acer rubrum (maple)

Liquidambar Styraciflua (sweet
gum)
Nyssa biflora (black gum) Juniperus Virginiana (cedar)

SHRUBS

Cyrilla racemiflora (tyty) Alnus rugosa (alder) Amorpha fruticosa

Sabal glabra (palmetto) Myrica cerifera (myrtle)

HERBS

Scirpus validus (bulrush) Phragmites communis (reed grass) Cladium effusum (saw-grass) Tillandsia usnecides (Spanish
moss) (on trees)

Pontederia cordata (wampee) Zizania aquatica (wild rice) Dryopteris Thelypteris (a fern) Nymphaea fluviatilis (bonnets)

Most of the herbs are confined to strips of marsh a few feet wide bordering the water. The peat was not investigated, but it is doubtless very impure.