MARYLAND GEOLOGICAL SURVEY 893 



Description. Leaves elliptical in general outline, with a slightly 

 emarginate apex and full rounded margins to the broadly pointed base. 

 Length 5.5 cm. Maximum width, in the middle part of the leaf, about 

 2.5 cm. Margins entire. Texture subcoriaceous. Petiole stout, curved, 

 about 4 mm. to 5 mm. long, slightly expanded proximad. Midrib stout. 

 Secondaries thin, diverging from the midrib at angles of about 35, 

 ascending, camptodrome, often obsolete by immersion in the leaf sub- 

 stance. Tertiaries obsolete. 



The present well-marked species occurs in the Magothy formation of 

 the East and the Dakota sandstone of the West. It is very similar to 

 Sapotacites obovata Velenovsky * of the Cenomanian of Bohemia, the latter 

 being a somewhat larger leaf and relatively narrower toward the base. 

 The present species also resembles Sapotacites retusus Heer as it occurs in 

 the Earitan formation, but is less emarginate and widest across the middle 

 and not toward the base ; the basal lateral margins are convex instead of 

 concave and the secondaries are more ascending. 



Occurrence. MAGOTHY FORMATION. Deep Cut, Delaware. 



Collection. Maryland Geological Survey. 



Genus BUMELIA Swartz 

 [Prodr. Veg. Ind. Oc., 1788, p. 49] 



BUMELIA PR^NUNTIA n. sp. 

 Plate XC, Fig. 1 



Description. Leaves of rather small size, obovate in general outline, 

 with a broadly rounded and sometimes faintly retuse tip, and a narrow 

 pointed base. Length about 4.5 cm. Maximum width, above the middle 

 of the leaf, about 1.8 cm. Margins entire, evenly rounded distad, rather 

 straight or only slightly curved proximad. Texture subcoriaceous. Mid- 

 rib stout and prominent, usually slightly curved. Secondaries numerous, 

 thin, camptodrome, diverging from the midrib at an angle of about 55, 

 largely immersed in the leaf substance. Tertiaries obsolete. 



This species resembles the form from the Raritan formation of New 

 Jersey described by Newberry as Dalberyia apiculata. It is named prce- 



1 Velenovsky, Fl. Bohm. Kreidef., Theil iii, p. 3, pi. iii. fig. 6, 1884. 



