884 SYSTEMATIC PALEONTOLOGY 



by open, usually shallow, rounded sinuses. Petiole very stout, at least 

 4 cm. or 5 cm. in length. Midrib stout, prominent. Lateral primaries 

 subopposite, suprabasilar, diverging from the midrib at acute angles, 

 stout, prominent, craspedodrome. Secondaries numerous, stout, in gen- 

 eral regularly spaced and subparallel, camptodrome. 



This well marked variety was described originally from the Dakota 

 sandstone where it is not uncommon. It has been referred successively 

 to the genera Populites, Sassafras, and Cissites, but is a well marked form 

 of Araliopsoides close to Araliopsoides cretacea. 



Occurrence. KARITAN FORMATION. Bull Mountain, Cecil County. 



Collection. Maryland Geological Survey. 



Family CORNACEAE 

 Genus CORNUS Linne 

 [Sp. PL, 1753, p. 117] 



CORNUS CECILEXSIS Berry 

 Plate LXXXII, Fig. 2 



Cornus cecilensis Berry, 1911, Bull. Torrey Bot. Club, vol. xxxviii, p. 408, 

 pi. xix, fig. 4. 



Description. Leaves of medium size, broadly ovate or elongate-ellipti- 

 cal in general outline, 8.5 cm. in length by 4.75 cm. in maximum width, 

 at a point about half-way between the apex and the base. Apex bluntly 

 pointed. Base cuneate. Midrib stout. Secondaries about six pairs, 

 branching from the midrib at an angle of about 45, curving upward 

 approximately parallel with the lateral margins, at length camptodrome. 

 Tertiaries obsolete. Texture subcoriaceous. 



Several Cretaceous forms have been referred to the genus Cornus, 

 although this determination is not conclusively proven. Leaves of a 

 similar facies are found among the Rhamnales, representatives of which 

 order would be much more likely to occur under the climatic conditions of 

 the Upper Cretaceous than would those of Cornus. 



Occurrence. MAGOTHY FORMATION. Grove Point, Cecil County. 



Collection. Maryland Geological Survey. 



