318 
FLORIDA GEOLOGICAL SURVEY—THIRD ANNUAL REPORT. 
Baccharis halimifolia L. 
Edges of salt marshes, also in a few somewhat calcareous swamps in the 
interior (near Pickett, Duval Co., and Sunnyside, Lake Co.) Not abundant. 
Occurs as a weed in low grounds around Tallahassee. 
Massachusetts to Texas, mostly along the coast. 
Aster Carolinianus Walt. 
Mostly in calcareous and estuarine swamps. Seen near Pickett and Pana- 
soffkee, on the Suwannee, St. Marks, Sopchoppy and Apalachicola Rivers, 
and near tht north end of Biscayne Bay. 
South Carolina to Florida, in the coastal plain. 
Boltonia diffusa Ell. 
In estuarine marshes of the Escambia and Yellow Rivers, and around 
mayhaw ponds near Chipley, and cypress ponds near Tallahassee. 
South Carolina to Florida, Illinois and Texas, in the coastal plain. 
Solidago fistulosa Mill. Goldenrod. 
Chiefly on edges of non-alluvial swamps, in sandy prairies, and in the drier 
portions of peat prairies. As it blooms in fall, I have not identified it very 
often, but I have seen it in Walton, Lake, Osceola and DeSoto Counties at 
least. 
New Jersey to Louisiana, in the coastal plain. 
Mikania scandens (L.) Willd. 
Mostly in calcareous swamps; widely distributed over the State, but not 
abundant. Contributes to the formation of peat along Helena Run, if not 
elsewhere. 
Massachusetts to Indiana, Florida and Texas. Also in the West Indies. 
Eupatorium serotinum Mx. 
Mostly in saw-grass marshes; not common. Escambia, Santa Rosa, Duval, 
Sumter and Lake Counties. (In other states it seems to prefer river-bottoms.) 
Maryland (?) to Iowa, South Florida and Mexico. 
Eupatorium capillifolium (Lam.) Small. Dog-fennel. 
Abundant in drained marshes and in prairies and lakes which arc dry 
most of the year so that cattle can graze in them, especially in the Middle 
Florida hammock belt, the southern part of Sumter County, and the northern 
part of Osceola. It is supposed to be native, but it never seems to grow in 
places which have not been tampered with in some way. Where it grew before 
the country was settled is a mystery. 
Delaware (?) to Florida and Louisiana, mostly in the coastal plain. 
Iva frutescens L. 
In and around salt marshes. Frequent at least as far south as Fort Myers, 
but not abundant. 
Virginia to Texas, along the coast. 
