Studies in the Agalinanae, a subtribe of the Rhinanthaceae* 
FRANCIS W. PENNELL 
II. SPECIES OF THE ATLANTIC COASTAL PLAIN 
Following a survey of the nomenclatural history of the group 
of Rhinanthaceous plants, which we would term for convenience 
the Agalinanae, there should properly come some comparative 
morphological study of the several genera. It has seemed advis- 
able, however, to defer such for the present, in order first to present 
the results of a season’s field-study of the group in the Coastal 
Plain of the South Atlantic and East Gulf states. 
The present paper includes a revision of the species known to 
occur in the Atlantic Coastal Plain from New Jersey to eastern 
Louisiana. The flora of the northward extension of this area— 
Long Island and southeastern Massachusetts—has not been 
included, as this region is so narrow and broken, and the Coastal 
Plain flora so attenuated, as scarcely to make such inclusion 
desirable. From New Jersey southward and westward to central 
Alabama the Fall Line has been followed as the natural inland 
boundary. But toward the west instead of turning northward 
to include the lower Mississippi Valley, an arbitrary line has been 
drawn on the 33d parallel to the Mississippi River, the western 
limit of this study. It is believed that while sufficiently diverse 
the flora of the region included has so much in common, and so 
much in contrast to the districts northward and westward as to 
warrant a special consideration. 
Four genera of Agalinanae occur within this area. 
Macranthera is monotypic and wholly restricted to t 
Afzelia with two species east of the Mississippi River 1s nearly sO 
restricted, Aureolaria, primarily a genus of the Appalachian 
‘district, has several species adapted to this region, while aesins , 
the largest genus, here reaches its greatest diversity and 
abundance. 
* Contribution from the Botanical oe ad of the University of 
Of these 
his region, 
Pennsylvania. 
