Bulletin 3. The flora of the Raritan Formation, 1911 - State of New ...

162 'I_HIE RARITA_N FLORA.
This is possibly only an, extraordinary large leaflet of CaesaL
pini_ Cookiana Hollick, somewhat more elongated in outline and
strictly congeneric with that species. It is, u*}fortunately, based
upon the single imperfect specimen figured.
Occurrence.--South Amboy.
Collections.---U. S. National Museum.
Genus BAUHINIA Linnf.
(Sp. PI., I753, p, 374-)
BAUHINIA
CRE:TACEANewb,
Plate X1X, Fig. 3-
Bauhinia cretacea Newb., Bull. Torrey Club, vol. i3:77, pl. 56,
_896; F1. Amboy Clays, 9 t, pl. 43, f. z-4; pl. 44, f. I"-3,
1896.
Description.--This handsome species is common at the Woodbridge
horizon and is characterized by Professor Newberry as
follows : "Leaves large, from IO cm. to I8 cm. in diameter, general
outline circular, deeply two-lobed, sinus reaching below the
middle, margin entire, base rounded, lobes oblong or broadly
spatulate; nervation strong, radiate or bilateral, midrib slender,
from I em. to 4 cm. in length, running to bottom of medial
sinus, there forking equally, each slender branch running parallel
with the margin of the sinus; lateral nerves strong, usually two,
rarely one on each side, springing from a common base, the
interior lateral nerve strongest, forking several times and giving
off fine branches, which inosculate to form a graceful festoon
near the upper margin; the exterior lateral ner_'es throwing off
numerous branches which anastomose in loops near the margin,
producing a camptodrome nervation. In those which have but
a single lateral nerve the lobes are narrower, and each is covered
with the ramifications of the branches, which spring chiefly from
the outer side of the single main nerve."
"The form and nervation of these leaves are so precisely those
of some of the Bauhinias of the present flora that there can be
NEW JERSEY GEOLOGICAL SURVEY