100 THE FLORA OF THE AMBOY CLAYS. 
the Patoot beds of the Upper Cretaceous in Greenland. Unfortunately, he 
has given but a single figure, and that represents a leaf more pointed than 
is often seen in the group with which I have compared it, and of which 
numerous figures are now given. In size, form, and nervation Professor 
Heer’s leaf is more like those of the smaller and more abundant species 
which I have described in this monograph under the name of Celastrophyllum 
denticulatum | = C. Newberryanum Uollick; see below], but in that species 
the margin is always denticulate, if not spinulate. As will be seen from 
the figures now given, our leaves are generally much larger and more 
coarsely crenulate than that from Greenland, but some may be found in 
the collection which approach it so closely in all important characters that 
1 do not feel justified in considering them distinct. 
Localities: South Amboy, Sayreville. 
CELASTROPHYLLUM CRETACEUM Lesq. 
Pl. XLII, fig. 13. 
Celastrophyllum cretaceum Lesquereux, Fl. Dak. Gr., p. 173, Pl. XX XVIII, figs. 12-14. 
The single leaf here represented appears to be so closely allied to 
the species figured by Lesquereux in his Flora of the Dakota Group, 
PL XXAVITL, fig. 14, that it seems needless to separate them, although it may 
be noticed that our specimen is somewhat more obovate or spatulate in out- 
line. The differences between Lesquereux’s figs. 12 and 14, however, are 
far greater than are those between his fig. 12 and our specimen, and under 
the circumstance it does not seem advisable that they should be separated. 
Exact locality not known.—A. H. 
CELASTROPHYLLUM ANGUSTIFOLIUM Newb. n. sp. 
Pl. XIV, figs. 8-17. 
Leaves lanceolate, pointed above and more or less wedge-shaped below, 
6™ to 15™ in length by about 1.5°™ to 2.5™ in width; nervation fine and 
delicate, very numerous lateral nerves springing from the midrib, simple at 
This species is manifestly very close to C. decurrens Lesq. (Fl. Dak. Gr,, p. 172, Pl. XXXVI, tig. 1), 
but differs shghtly in the crenate rather than serrate dentation and the somewhat more polygonal 
areolation. I am inclined to think that more complete material from the West may prove them to 
be identical.—A. H. 
