822 SYSTEMATIC PALEONTOLOGY 



Ficus crassipes Berry, 1906, Bull. Torrey Bot. Club, vol. xxxiii, p. 172. 

 Ficus daphnogenoides Berry, 1907, Johns Hopkins Univ. Circ., n. s. No. 7, 



p. 81. 

 Ficus crassipes Berry, 1914, Prof. Paper U. S. Geol. Survey, No. 84, pp. 37, 



110, pi. x, fig. 4; pi. xii, figs. 8-10. 



Description. Leaves entire, narrowly lanceolate in outline, about 

 equally tapering to the acuminate apex and base. Length 12 cm. to 20 cm. 

 Greatest width, which is in the middle part of the leaf, 1.8 cm. to 2.5 cm. 

 Texture coriaceous. Midrib stout, often extraordinarily so. Secondaries 

 thin, open, ascending, camptodrome. 



This species was described originally from the Atane beds of Western 

 Greenland, the first rather fragmentary specimens collected suggested a 

 relationship with the genus Proteoides. Subsequently the original 

 describer referred it to Ficus, where it undoubtedly belongs. Lesquereux 

 has recorded it from the Dakota group and it is common in the Magothy 

 formation of the northern Atlantic Coastal Plain and in the Black Creek 

 formation of North Carolina. It persists into the Eutaw formation of 

 Georgia and is especially common in the Middendorf beds of South Caro- 

 lina. It is not especially common in the Tuscaloosa formation, and is a 

 species which is especially characteristic of the post-Earitan and pre- 

 Montana horizons of eastern North America. 



The leaf substance is partially preserved in part of the Alabama mate- 

 rial and shows in microscopic preparations the spiral tracheids of the leaf 

 veins and numerous lactiferous cells. Both lower and upper epidermal 

 layers are well preserved. They are thin and highly cuticularized, the 

 epidermis consisting of very small, nearly equilateral, quadrangular, thick- 

 walled cells. The stomata are few and scattered and are confined to the 

 lower surface. They consist of two rather thin, sausage-shaped guard 

 cells set on edge (i. e., much higher than wide), the length equal to two 

 epidermal cells. 



Occurrence. MAGOTHY FORMATION. Deep Cut, Delaware ; Grove 

 Point, Cecil County; Little Eound Bay, Anne Arundel County, Maryland. 



Collection. Maryland Geological Survey. 



