114 THE FLORA OF THE AMBOY CLAYS. 
inosculate with this and with one another to form an irregular and open 
network. 
These leaves have much in common with the much more 1umerous 
ones that are associated with them and which I have considered as iden- 
tical with Saporta’s Hedera primordialis, and it may prove that they are 
but phases of the same foliage. It will be seen, however, that the leaves 
of H. primordialis are symmetrically heartshaped, with more or less deep 
sinuses, and with a midrib and corresponding branches radiating from the 
base on either side. In the leaves now under consideration, however, 
the want of symmetry is most marked. The leaves attain a larger size, 
are not cordate, and are generally transversely or obliquely elliptical, 
though sometimes nearly round. Of H. primordialis we have thirty or forty 
fairly well preserved leaves; of H. obliqua, only three or four, so that 
it would seem that this species or variety was much less common than 
the other. 
Locality: Woodbridge. 
Arpaia WELLINGTONIANA Lesq.' 
Pl, XXVI, fig. 1. 
Aralia Wellingtoniana Lesquereux, Fl. Dak. Gr., p. 131, Pl. XX, fig. 1; TPA DON 
figs. 2, 3. 
Leaves medium size, 15° long by 12 or 13° broad, petiolate, sym- 
metrically three-lobed, lobes lanceolate, acute, sharply but remotely serrate, 
basal margin entire; base long wedge-shaped; nervation strong, primary 
nerves three, which meet before reaching the point of the base, secondary 
nerves diverging at an angle of about 45°, parallel, gently curved, termi- 
nating in the teeth of the border. 
This very elegant leaf resembles those of A. Saportana Lesq. of the 
Dakota group as far as regards the shape of the lobes and their denticu- 
lated edges, but it may be at once distinguished from that species by its 
having only three lobes instead of five. Aralia decurrens Vel. (Die Flora 
‘Dr. Newberry’s original manuscript name for this species is 4. concinna, n. sp. It is, however, 
manifestly identical with the three-lobed form of A. Wellingtoniana Lesq. as deseribed and figured 
in the Flora of the Dakota Group.—A. H. 
