BERRY: MESOZOIC FLORA OF THE COASTAL PLAIN 205 
land with some of the species crossing the equator and extending 
to the southern part of South America. 
This species is an abundant and widespread one ranging from 
Greenland to Alabama along the eastern coast and from Nebraska 
and Kansas to Texas in the interior region. 
GENTIANALES 
Acerates sp., Hollick, in Newb. Fl. Amboy Clays 124. pl. 32. 
Pees Pl £ief. 2, 5... SGN. 
A specimen which is comparable to this Raritan species is con- 
tained in the material from one half mile below Blackmans Bluff 
on the Neuse river. 
I doubt, however, whether any of these Cretaceous leaves de- 
scribed under this genus are related to the modern Asclepiadaceae, 
a highly specialized and recent type. 
Jouns Hopkins UNIVERSITY, 
BALTIMORE, MARYLAND 
