102 PUBLIC HEALTH BULLETIN NO. 2 86 



20. C. lonchocarpa Willd; — Swamps, Coastal Plain, Florida to 

 South Carolina and westward. The closely related C. folliculata L. 

 also probably enters our territory in the north. 



21. C. comosa Boott — Swamps, various provinces, Florida north. 

 Collected by the senior author 'in our territory mostly in alluvial 

 situations. 



22. C. lujida Wahlenb. — Swampy areas, over all of our territory. 

 Apparently has no marked soil preference and is ver}^ frequent. 



23. C. bullata Schk. — Coastal Plain in the eastern part of our area. 

 Has been taken from river swamps but is said to occur in acid, swampy 

 meadows. 



24. C. elliottii Schw^eni & Torr. — Coastal Plain, Florida to Alabama 

 and North Carolina in very acid places, infrequent. 



25. C. intumescens liudge— Branch swamps aiid river swamps, 

 various provinces over all of our range. 



26. C. grayi Bailey — Various provinces, Georgia north, seeming to 

 prefer neutral soils. 



27. C. gigantea Rudge—Acid ponds or swamps, Coastal Plain and 

 occasionally adjacent provinces over most of our territory. 



28. C. lupulina Muhl.^ — Swamps, various provinces, over all of our 

 territory. 



29. C. louisianica Bailey — Said to occur mostly in the Coastal 

 Plain, range includes all of our territory. 



30. C.frankii Kunth — Northern part of our territory m calcareous 

 soils. 



31. C. typhina Michx. — Most characteristic of calcareous districts, 

 various provinces, Georgia north and west. 



32. C. squarrosa L. — Mostly in the northern part of our territory- 

 being known from North Carolina and Tennessee. There is one 

 recorded occurrence in a river swamp in the Coastal Plain of Georgia. 

 In addition to the above 32 species of Carex there are perhaps a few 

 others which are either only occasionally aquatic or which enter our 

 range in its northern part. 



ARACEAE Arum family 



1, Acorus L. 



A. calamus L. Sweet-flag — Various provinces, range should include 

 all of our area, but vcr}^ i]i frequent. 



1. Orontium L. 



0. aquaticum L. Never-wet — Most frequently found along sluggish 

 creeks or rivers or in alluvial swamps, also present in the very acid 

 Okefinokee Swamp and in other non-alluvial aquatic situations. 

 Range covers all of the Coastal Plain of our territory. Anopheles 

 quadrimaculatus can often be found associated. 



