BERRY: MESOZOIC FLORA OF ATLANTIC COASTAL PLAIN 413 
suggested that those forms which are here referred to Platanus 
Heerti were referable to Platanus, while the other type was com- 
parable with Sassafras cretaceum or mirabile. 
Professor Ward, in 1887,* after sending figures of some leaves 
which he had collected at Black Buttes, Wyoming (a probably 
basal Eocene locality), to Lesquereux, who insisted that they were 
not Platanus Heerii, persisted in identifying them as this species 
although they are obviously not closely related to it. 
Platanus Heertt was identified by Lesquereux from the New 
Jersey Raritan in collections made from Pettit’s pits, South River, 
but as the material was poor and the species has not since been 
detected in the New Jersey Raritan this occurrence is usually 
ignored, although the abundance of this species in the Raritan of 
Maryland renders its presence in New Jersey probable. In the 
Maryland Raritan, fragments of this species are very common but 
they are usually in a bad state of preservation. The species ex- 
tends northward to the west coast of Greenland and it shows 
considerable resemblance to Credneria rhomboidea, described by 
Velenovsky from the Cenomanian of Bohemia.t 
OccURRENCE: Drum Point R. R. near head of Severn River, 
Anne Arundel County, Md.; East Washington Heights, District 
of Columbia. 
CoLLections: Maryland Geological Survey, U. S. National 
Museum. 
Araliopsis gen. nov. 
The name Araliopsis was used by Professor Lesquereux as the 
designation for a group of forms which he described under Sassa- 
fras. 
Since these species are not allied to Sassafras and show nu- 
merous characters that ally them with the Araliaceae their segre- 
gation is warranted, Araliopsis becomes, then, a form genus 
for certain araliaceous leaves that cannot be identified with any 
of the known genera with any degree of certainty. 
Araliopsis cretacea (Newberry) 
Sassafras cretaceum Newb. Ann. N. Y. Lyc. Nat. Hist. 9: 14. 
___ 1868 (not Penhallow, 1904 and 1908). Ill. Cret. and Tert. 
* Ward, Bull. U.S. Geol. Surv. 37: 34. pl. 15.f. 3, 4- 
1887 
+ Velenovsky, Fl. Béhm. Kreidef. 1: 11. pl. 3. f. 2, 3° pl. 4. f. I. 1882. 
