138 PUBLIC HEALTH BULLETIN NO. 286 



6. U. vulgaris L. — This species is cited by Small as U. macrorhiza 

 LeConte. Present in our territory only in the northern part. Prob- 

 ably occurs in North Carolina and has been collected in Northwest 

 Tennessee. 



7. U. fioridana Nash — Ponds on the Coastal Plain in Florida and 

 Georgia. 



8. TJ. gibba L. — Ranges over all of our area, but probably most 

 common in shallow water of the Coastal Plain. 



9. U. biflora Lam. — This species is given as TJ. pumila Walt, by 

 Small. Coastal Plain, Florida north and west to beyond the limits 

 of our territory. 



10. U. fibrosa Walt. — Pineland ponds, Coastal Plain, Florida to 

 Mississippi and north to beyond the limits of our territory. 



RUBIACEAE Madder family 

 1. Pinckneya Michx. 



P. pubens Michx. Georgia Feverbark — Sandy, acid swamps, 



Middle Florida to the extreme southern part of South Carolina in 



the Coastal Plain. 



2. Cephalanthiis L. 



C. occidfnialis L. Buttonbush — Commonest aquatic shrub and is 

 very often found in ponds supporting the breeding of Anopheles quad- 

 rimaculatus . Shows the widest degree of acidity tolerance, being 

 found in the extremely acid Okefinokee Swamp and neutral or 

 even alkaline limesinks and alluvial swamps. Range covers all of 

 our territory. 



CAPRIFOLIACEAE Honeysuckle family 



1. Sambucus [Tourn.] L. 



1. Lateral leaflets merely toothed 1. S. canadensis. 



1. Lateral leaflets 2-3 times divided, especially the lower 2. S. simpsonii. 

 pair. 



1. /S. canadensis L. Elder— Moist places over all our range except 

 possibly in Florida. 



2. S. simpsonii Rehder. Gulf Elder — Lower Coastal Plain, Florida 

 to Louisiana, in marshes and hammocks. 



CAMPANULACEAE BeU-flower family 

 1. Campanula [Tourn.] L. 



C. fioridana S. Wats. — Grassy swamps and marshes. East Florida 

 and the peninsula. 



