,286 FLORIDA GEOLOGICAL SURVEY-THIRD ANNUAL REPORT.

HERBS

Cladium effusum (saw-grass) Phragmites communis (reed grass)
(mostly in sloughs)
Nymphaea macrophylla (bonnets)
(in 'gator-holes) Sagittaria lancifolia Spartina Bakeri (a grass) Eleocharis cellulosa (round grass)
(in sloughs)
Monniera Caroliniana Pontederia cordata (wampee)
(mostly in 'gator-holes)

Peltandra Virginica (mostly in 'gator-holes)
Crinum Americanum Centella repanda Schoenus nigricans Rhynchospora Tracyi Typha latifolia (cat-tail) P6Otamogeton sp. Oxypolis filiformis Cassytha filiformis Aeschynomene pratensis Asclepias lanceolata (milkweed)

The shrubs (all of which become trees in more sheltered situations) are chiefly confined to the immediate vicinity of the 'gatorholes, where they form small clumps, or oases, which are a charac-

Fig. 28.-Scene in Everglades about River, Dade County (locality No. 26). (reed grass). April 9, 1909.

a mile west of head of Miami Vegetation mostly Phragmites

teristic feature of the landscape of the southern part of the Everglades. (They seem to be absent from the middle and northern portions, where the rock is deeper below the surface.) Several of the herbs prefer the same spots, as indicated in the above list.
Analyses of peat from this region will be found under localities 24 to 26.