176 Berry: Mesozoic flora of the coastal plain 



a narrow sinus and an angular outline like the leaves which New- 

 berry refers to C. primordialis. Probably the most similar to our 

 species among those of the Cretaceous is Colittea valdc-inaequalis 

 Heer, from Greenland, which in its general proportions is quite 

 similar, but it is a somewhat larger leaf and has the sinus sharp 



instead of widely rounded. 



Comparing our leaf with the various Tertiary species, it may 



be noted that the only American species (C. Bozveniana Lesq.) is 

 entirely different. With the forms from the European Tertiary, 

 however, there is more similarity, the nearest being Cohitea macro- 

 phylla Heer (cf. Fl. Tert. Helv. 3: pi. IJ2. /. 46), while the vena- 

 tion of all the Swiss Miocene species (C S$lt£ri f C. macrophylla, C. 

 debilis, and C. antiquci) is very close to that of the American leaf. 



Hymenaea dakotana Lesq. Fl. Dakota Group 145. pi. 55. f. 2, 



3 / pl- 5<5- /• 7 > 2 >' pt- 62./. 2. 1892. 



Fontaine has referred to this genus a species from the Potomac 



formation of Virginia, based upon the basal fragments of leaflets. 

 It is perhaps needless to say that very little confidence can be 

 placed in this determination. Undoubted species do occur, how- 

 ever, during the Mid-Cretaceous, Velenovsky having described 

 three forms from the Cenomanian of Bohemia and Lesquereux the 

 above species from the Dakota Group. The latter usually occurs 

 as detached inequilateral leaflets with a rather stout curved mid- 

 rib. Two of these leaflets occur in the collections from Morgan, 

 N. J. They are somewhat smaller than the other leaves referred 

 to this species, that of Hollick * and some of Lesquereux's being 

 considerably larger. Judging from the figures Hollick's leaf is 

 probably referable to the species Phaseolitcs manhasscttensis recently 

 established (Bull. N. Y. Bot. Gard. 3 : 414. pL 78. f. /, 2. 1904) 

 by him for the reception of certain leaves from Manhasset Neck, 

 Long Island. 



Newberry's leaf (Fl. Amboy Clays 90. pi. 41. f. 14* 1896) 

 and Lesquereux's fig* j are identical in outline with the Morgan 

 leaf, which appears to have been of a very delicate texture and 

 does not show any venation characters, due undoubtedly to the 

 rather sandy matrix. A single perfect specimen from the pits of 



* Hollick, Bull. Torrey Club 21 : pi. 176. f. 4. 1894. 



