352 
FLORIDA GEOLOGICAL SURVEY—THIRD ANNUAL REPORT. 
Potamogeton sp. (probably several of them). Pondweed. 
In Lake Iamonia, Lake Lafayette, Lake Dora, the St. Marks River, and 
various other quiet waters. There is one species in the southern part of the 
Everglades and the adjacent coast prairies which is probably different from 
any of those farther north. 
TYPHACEAE. Cat-tail Family. 
Sparganium sp. 
Around a pond about three miles northeast of Tallahassee, and in the Wac- 
casassa River, Levy County. 
Typha latifolia L. Cat-tail. 
Lake margins, estuaries, large fresh marshes, etc.; not common. Escambia, 
Santa Rosa, Walton, Franklin, Citrus, Lake and Dade Counties. 
Widely distributed in the north temperate zone, but absent over large areas. 
CONIFERAE. Pine Family. 
Juniperus Virginiana L. (Red) Cedar. 
Mostly in low calcareous hammocks, but occasionally on poor peat, as at the 
mouths of the Choctawhatchee, Apalachicola and Suwannee Rivers, and on the 
borders of salt marshes near Titusville. Most frequent in the Gulf hammock 
region, but not very abundant anywhere in Florida. 
Widely but irregularly distributed in temperate Eastern North America, 
mostly in limestone regions. 
Chamaecyparis thyoides (L.) BSP. Juniper. 
In sour, or at least decidedly non-calcareous, swamps in the West Florida 
pine hill region from Liberty County westward. Abundant on peat (often 15 
or 20 feet of it) in the estuarine swamps of the Blackwater River and its trib¬ 
utaries in Santa Rosa County. 
Maine to Louisiana, in the glaciated region and coastal plain; but rare in 
some of the intervening states, especially in Georgia. 
Taxodium distichum (L.) Richard. (River) Cypress. 
(Plates 20.1, 21.1, 25.1, 26.2. Figs. 17, 26.) 
Chiefly in alluvial or calcareous swamps. Widely distributed over the State, 
perhaps in every county. Abundant among the large lakes and saw-grass 
marshes of central Florida. Not usually on good peat. 
Delaware to Florida, Indiana and Texas, almost confined to the coastal 
plain. 
