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

128 THE RARITAN FLORA.
2.2 era. While their distal portions are broken off they were
apparently 12 era. or 13 era. in length. St_bseqnently, remains
of a similar nature fror_ elsewhere in Greenland were referred
by Heer to this species, among them, the only complete leaf (loc.
cir. pl. lxii, fig. 6) which shows a blunt apex. It is .with this
latter specimen that the Raritan leaves show the most marked
affinity. The latter are found detached, but are unsymmetrical,
as is the case with the leaflets of many trifoliate forms. They
have a rather slender midrib and 6 or 8 pairs o.f very thin ascending
camptodrome secondaries, the apex is blunt and the
base is attenuated. They are about 7 cm. in length by 1.4 era.
to 1.7 cm. in greatest width. There seems to be little room for
doubt but that they are correctly identified.
This species has a wide range, if reliance can be placed on the
tmblished records, which include Staten. Island, North Carolina
and Alabama.
Occurreme.--Locality unknown.
Collections.--_N. Y. Botanical Garden.
D_WALQUIgA TRIFOLIATA Newb.
De_amlqueaLtrifoliata Newb., Fl. Amboy Clays, I2 9, pl. 2z, f.
4-7, I896.
Descrip6on.--Leaves trifoliate. Leaflets linear laneeolate.
While the tips are missing on all"of the specimens the apex was
a,pparently acuminate. Base cuneate and decnrrent, in some
instances continued downward and joining that of its fellow leaflets,
inequilateraI in the lateral leaflets. Size variable, ranging
from about 8 cm. to 12 cm. in length and 1.2 era. to 2 em_ in
breadth. Margins entire throughout. Midrib medium, slightly
flexuous. Secondaries numerous, thin, more or less obsolete,
apparently camptodrome.
A number of specimens, all incomplete, have been collected
from the Woodbridge clays and several are f_gured in Prof.
Newberry's monograph. The genus is characteristic of the
Upper Cretaceous and Lower Eocene and its botanical affinities
are still considered doubtful, although it is usually classed with
NEW JERSEY GEOLOGICAL SURVEY