896 SYSTEMATIC PALEONTOLOGY 



broadly oval or elliptical. Apex broadly rounded. Base similarly rounded 

 or somewhat narrowed and pointed. Petiole and midrib stout. Secon- 

 daries six or seven pairs, branching from the midrib at angles of from 50 

 to 60, arched, camptodrome. Texture subcoriaceous. Venation less 

 prominent than in Diospyros primceva Heer. 



This species is a characteristic element in the post-Karitan flora of the 

 Atlantic Coastal Plain, although at times it is liable to be confused with 

 Myrsine borealis Heer, or with some of the smaller, more orbicular, entire 

 leaves referred to Populus. The venation is markedly different, however. 



Diospyros rotundifolia was described originally from the Dakota group 

 of Kansas, and it is common in the Magothy formation in New Jersey, 

 Delaware, and Maryland. In South Carolina it has been found only at a 

 single locality in the Middendorf beds. It is not rare in the lower 

 Tuscaloosa of western Alabama. 



Occurrence. MAGOTHY FORMATION. Deep Cut, Delaware ; Grove 

 Point, Cecil County, Maryland. 



Collection. Maryland Geological Survey. 



DIOSPYROS VERA Berry 

 Plate XC, Fig. 5 



Diospyros vera Berry, 1911, Bull. Torrey Bot. Club, vol. xxxviii, p. 418, pi. 



xix, fig. 5. 

 Diospyros vera Berry, 1912, Plant World, vol. xv, p. 17, fig. 2. 



Description. Calyx small, four-parted, 11.5 mm. in diameter from tip 

 to tip of the lobes, which are obtusely pointed and nearly orbicular in out- 

 line, about 4 mm. or 5 mm. in width, contracted proximad and somewhat 

 reflexed, coriaceous, longitudinally veined, with inflexed margins which 

 give them a spoon-like form. Sinuses rather narrow and pointed, extend- 

 ing two-thirds of the distance to the peduncle. The central disk of the 

 calyx appears flat. There is a raised collar at the insertion of the peduncle, 

 the latter from its scar appears to have been relatively slender. 



The present species is based upon the single specimen figured, which 

 shows the lower, peduncular face of the calyx. It is clearly referable to 

 this genus and was probably accrescent as in the modern forms. It is 



