130 THE FLORA OF THE AMBOY CLAYS. 
Several of these trifoliate groups are contained in the collection, but — 
none in which the entire form of the leaflets is shown. This material is 
too meager to determine with accuracy their generic relations, but no other 
has suggested itself than that with Dewalquea, a genus so frequently 
represented in rocks of Upper Cretaceous age. 
Locality: Woodbridge. 
PHYLLITES ORBICULARIS Newb. n. sp. 
Tek MOG IMG sia, Te Sb 
Leaves nearly orbicular, short petioled, about 4°" in diameter, slightly 
emarginate at the summit and wedge-shaped at the base, margins entire; 
neryation fine, but distinct, regular; midrib slightly arched, side branches 
nearly equally spaced, simple below, connecting in a festoon above. 
Only two specimens of this leaf are contained in the collection, and 
they present no characters by which they can be confidently referred to 
their botanical position. They are not unlike some of the forms of Populus 
hyperborea of Heer, but in my judgment they do not belong to the genus Pop- 
ulus. Hereafter more material will doubtless permit the generic relations 
to be satisfactorily determined. 
Locality: Sayreville. 
PHYLLITES ELLIPTICUS Newb. n. sp. 
1A ROSIN ilies, Y). 
Leaf elliptical or long-ovoid, rounded at base, obtuse at summit, 
margins entire, sightly undulate; nervation fine, midrib somewhat curved, 
side branches delicate, set with considerable regularity, parallel, curved 
upward. 
Only a single specimen of this species has been obtained from the 
Amboy Clays, and this does not suffice to determine its botanical relations. 
It is, however, distinct from any other leaf contained in the collection, and 
so it seems proper to call attention to it. 
Locality: Woodbridge. 
