Berry: Mesozoic FLORA OF THE COASTAL PLAIN 197 
Gleditsiophyllum gen. nov. 
Compound leaves with more or less inequilateral, medium, or 
small leaflets, with camptodrome venation, identical with the leaflets 
of the modern species of Gleditsia * of eastern North America and 
Asia. 
It has seemed wiser to establish a new genus for these forms 
whose name will indicate their resemblance to the modern genus 
Gleditsia without too great an indication of actual botanical identity 
since it is possible that these Cretaceous forms may represent some 
allied genus of the Caesalpinaceae with similar foliage. The 
modern G/editsta has five or six upland species of eastern North 
America and Asia. The fossil species which have been described 
number eight and include remains of the living Gleditsta triacanthos 
from the Pleistocene of Kentucky and Gleditsia doneusis from the 
interglacial deposits of the Don River Valley in Canada. The 
distribution of the Tertiary species includes two Oligocene records, 
five Miocene, and two Pliocene. Probably, also, certain forms re- 
ferred to the comprehensive genus Legumznosites are related to the 
forms just mentioned. 
Gleditsiophyllum triacanthoides sp. nov. 
Leaflets ovate-lanceolate, medium in size, z. ¢., intermediate 
between the large and the small leaflets of Gleditsta triacanthos L.., 
about 3 cm. in length by 1 cm. in greatest width, which is about 
half way between the apex and the base. Apex and base bluntly 
pointed. Margin entire, as it often is in the modern species. 
Midrib of medium size. Secondaries numerous, parallel, delicate, 
branching from the midrib at an acute angle, less than 45°, camp- 
todrome, exactly similar to the venation of the modern species 
cited 
The present is the first Cretaceous record of a Gleditsia-like 
form. It is perfectly distinct from any of the known Cretaceous 
leaves and resembles the European Tertiary forms of Gleditsza 
as well as certain Tertiary species of Podogonium. Leaflets with 
this outline and venation are liable to be confused with the leaves 
of the genus Sa/ix, which may account for the absence of previous 
Cretaceous records. 
OccurRENCE: Three and one-half miles below Dunbars Bridge, 
Tar River, Edgecombe County, North Carolina. 
* Often spelled G/editschia, from the botanist J. T. Gleditsch. 
