[Krom ihe Itni.LRTiN dp ihh Tokhry HoiANn ai. Cluu, 43: 9J-111. 13 Mr 1916.] 



Notes on plants of the southern United States— I 



Francis W. Pennell 



During two seasons' field-study of the southern species of the 

 group of scrophulariaceous plants termed by the writer the 

 Agalinanao,* including the genera Agalinis, Aureolaria, Afzelia 

 and Macranthera, \arious other plants belonging to many families 

 were incidentally collected. Most of these have proved to be 

 species well known in their respective areas. Others, and some 

 of these, are believed to be of especial interest, and it is the purpose 

 of this series of papers to consider such. 



A considerable number of records extend materially the known 

 ranges of certain species. Several species are here first described. 

 For a number of critical groups revisions of southern species, 

 more or less partial, are attempted. Of such groups Commelina , 

 " Nemexia," Chamaecrista and Lacinaria are genera to which 

 special attention was given in the field. 



The two seasons spent by the writer in the south were those of 

 1912 and 1913. In 1912, from August i to October 18, he was in 

 the southeast, August 2-6 about Atlanta (at Stone Mountain) 

 and Rome, Georgia, after August 8 at various points in the Coastal 

 Plain from the Mississippi River in Louisiana to Wilmington, 

 North Carolina. From Covington, Louisiana, to north of the 

 Savannah River in South Carolina he was in open grassy pine-land, 

 where Pinus palustris, if not predominant, is at least an important 

 tree. One week, August 20-26, was spent in West Feliciana 

 Parish, Louisiana, in the region of loess hills just east of the 

 Mississippi River. Here was enjoyed the hospitality of Mr. 

 Edward Butler, and with him all specimens were collected. 

 Near the Georgia coast, and across the portion of South Carolina 

 traversed by the Atlantic Coast Line Railroad the writer was in a 

 region of deeper sand and more scrub, consequently in a region 

 having a flora materially different from that of the open pine-land. 



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