ALTAMAHA GRIT REGION OF GEORGIA 143 



P. bifrons (L.) DC, Prodr. 5 : 451. 1836. 



In shallow ponds, especially cypress ponds, tattnall, 

 coffee, Irwin, colquitt. Fl. June-Sept. Also farther in- 

 land and nearer the coast, but confined to the pine-barrens. 

 Rarely if ever associated with the preceding. 



New Jersey to South Florida and Texas, in the coastal plain. 

 Also in the Bahamas {Northrop). 



Leaf-anatomy described, by Kearney, Contr. U. S. Nat. Herb. 

 5:508. 1901. 



BACCHARISL.,Sp. PI. 860. 1753. 

 B. halimifolia L., 1. c. 



Principally in creek- and river-swamps, but also around extinct 

 sawmills and in some other places where it cannot possibly 

 be native, bulloch, emanuel, Montgomery, berrien. 

 Flowers very late if at all in our territory. 



Massachusetts to Florida and Texas, chiefly along the coast. 

 For discussion of its leaf -anatomy see Kearney, Contr. U.S. 

 Nat. Herb. 5:307,308. 1900; 508,509. 1901. 



IONACTIS Greene, Pittonia 3:245. 1897. 

 I. linariifolia (L.) Greene, 1. c. 



Montgomery: Dry pine-barrens near Mount Vernon, June 30, 

 1903. Flowers late. Occurs sparingly in all parts of Georgia. 

 Widely distributed in the Eastern United States. 

 Leaf-anatomy discussed by W. E. B itton, Bull Torrey Club 

 30:597. pi. 260. 1903. 



DCELLINGERIA Nees, Gen. & Sp. Ast. 176. 1832. 

 D. reticulata (Pursh) Greene, Pittonia 3: 53. 1896. 



Diplopappus obovatus (Nutt.) T. & G., Fl. 2: 184. 1841. 

 Intermediate pine-barrens, etc.; nearly throughout our 



territory and coastward, but not known farther inland. 

 South Carolina to central Florida, in the pine-barrens. 



LEPTILONRaf., Am. Month. Mag. 2 : 268. 1818. 

 L. Canadense (L.) Britton, 111. Fl. 3:391. /. 3827. 1898. 



A roadside weed, tattnall: Collins; colquitt: Moultrie. 



Common farther inland. 

 Widely distributed in North and South America, Europe and 

 Asia, but natural range and habitat unknown. 



