Notes on plants of the southern United States—| 
FRANCIS W. PENNELL 
During two seasons’ field-study of the southern species of the 
group of scrophulariaceous plants termed by the writer the 
Agalinanae,* including the genera Agalinis, Aureolaria, Afzelia 
and Macranthera, various 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 1 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. 
+ Bull. Torrey Club 40: 119-130, April 7; 401-439. August 13, 1913: 
93 
