PRELIMINARY REPORT ON PEAT. 
347 
Cladium effusum (Sw.) Torr. Saw-grass. (Plates 19.2, 22, 24.2, 26, 28.) 
Very abundant in nearly all large fresh marshes, such as the Everglades. 
"Also turns up rather unexpectedly in various small shallow ponds, and even in 
low pine lands, in which cases I take it to indicate limestone near the surface. 
Grows in every county, with the possible exception of a few of the northernmost 
ones, such as Holmes, Gadsden and Hamilton. Rarely more than 100 feet above 
sea-level. Forms vast quantities of peat, which is not usually of the best quality 
for briquetting, etc., because it is apt to be rather coarse and fibrous. 
Virginia to Texas,- in the lower parts of the coastal plain (rarely more than 
100 feet above sea-levd). Also in the West Indies. 
Dichromena latifolia Baldw 
Wet pine lands, shallow ponds, etc., in the northern half of the State, espe ¬ 
cially in the East Florida flatwoods. Also on shallow peat in estuarine marshes 
in Santa Rosa County. 
North Carolina to Texas, in the coastal plain. 
Dichromena colorata (L.) Hitchcock 
In brackish, calcareous, and estuarine marshes, prairies, Everglades, etc. 
Widely distributed over the State (not yet observed in West Florida), but not 
abundant. 
New Jersey to Texas, in the coastal plain. Also from Bermuda to Brazil. 
Psilocarya sp. 
In Hicks’s Prairie (a wet saw-grass marsh) northeast of Eustis, and in- 
shallow water in Lake Dora near Tavares. 
Fimbristylis spadicea (L.) Vahl 
In brackish marshes a few miles west of Apalachicola (doubtless in many 
other places near the coast), in the peat marsh bordering Crescent Lake, in the 
sandy prairies bordering Lake Harney, and in narrow marshes along the Miami 
River about two miles from its mouth. 
Virginia to Brazil, mostly along the coast.. 
Eleocharis interstincta (Vahl) R. & S. 
In boggy places where the water-level fluctuates from the surface of the 
ground to a foot or so above, and has no current: as in some ponds and the 
wetter peat prairies. Rather rare. Often accompanied by Pontederia. Walton, 
Leon, Madison, Sumter, Lake and Polk Counties. 
Massachusetts to Michigan, in the glaciated region; south to Florida and 
Mexico in the coastal plain. Also reported from the West Indies. 
Eleocharis Robbinsii Oakes 
Shallow margin of Lake Stanley, Walton County. 
New Brunswick to Michigan, in the glaciated region. Also in a few places 
m the coastal plain of North Carolina, Georgia and Florida. 
