324 FLORIDA GEOLOGICAL SURVEY-THIRD ANNUAL RIPORT.
Azalea viscosa L. Swamp Honeysuckle.
Sandy branch-swamps, non-alluvial swamps, bays, etc., fromni Hillsborough County northward. Contributes to peat formation in the estuarine swamps of Santa Rosa County, if not elsewhere.
General distribution much like that of the preceding.
CLETHRACEAE.
Clethra alnifolia L.
Bays, non-alluvial swamps, low pine lands, etc., from about lat. 3o00 northward. Escambia, Walton, Jackson, Leon, Wakulla, Jefferson, Madison and Clay Counties.
Maine to Louisiana, in the glaciated region and coastal plain.
UMBELLIFERAE. Parsley Family. Oxypolis filiformis (Walt.) Britton
In cypress ponds, prairies, Everglades, etc., mostly in open places where the water varies with the seasons from nothing to a few inches in depth, and has little or no current. Contributes to peat formation in the estuaries of West Florida and in the Everglades northwest of Fort Lauderdale and Miami.
North Carolina to Louisiana, in the coastal plain.
Cicuta Curtissii C. & R.
Mostly in large fresh marshes and in somewhat calcareous swamps. Hog Island, Panasoffkee, Helena Run, Lake Apopka, etc. (In other states it usually grows in small marshes and non-calcareous-but sometimes muddy-swamps,).
Virginia to Louisiana.
Eryngium virgatum Lam.
Estuarine marshes, wet pine lands, etc. Escambia, Walton and Jackson Counties.
Western North Carolina to northern Florida and Texas.
Centella repanda (Pers.) Small
Common all over the State, in shallow ponds, prairies, and various other places which are dry about half the time. Often in calcareous soils, and not usually on peat; but it helps form peat in open tyty bays near Carrabelle, in some of the smaller peat prairies of the lake region, and in the St. Johns River swamp near Palatka.
Maryland to Texas, in the coastal plain. Also in the tropics.
Hydrocotyle verticillata Thunb.
In calcareous swamps near Pickett, Panasoffkee, and Helena Run.
Massachusetts to Mexico. Also in the tropics.