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

i96
'PH,E RARIT'A_N FLORA.
This species is common in the upper Raritan and has a recorded
range of considerable extent in somewhat later formations.
It is recorded from the 1V!agothy form'ation of New
Jersey and Maryland, the Bladen formation of Nortb Carolin_
and the Tuscatoosa formation of Alabama.
Occurreuce.--South A_lboy, Hylton Pits.
Collectious.--N. Y. Botanical Garden.
Order
UMB_LLALE5.
Family
CORNACEA7,.
Genus CORNOPHYLLUhl Newb.
(FI. AmboyClays,I896,p. IIg.)
CORNOPHYLLUI_I Vt_'I'IJSTUIX:[ Newb.
Cornophyllum _etustu_u Newb., FI. Amboy Clays, II 9, pl. z9, f.
to, i896.
Descriptio_z.--Leaves elliptical in outline, 7-8 cm. long_ by
about 4 cm. wide, with acute apex and base, the latter slightly
decurrent and inequilateral. Margin entire, very slightly undulate.
Midrib slender and straight. Secondaries slender, about
7 pairs, opposite or alternate, branching from the midrib
at an angle of about 45 °, and stror_gly curved upward, approximately
parallel and cmnptodrome; they increase in length from
the apex to the base, the lower ones sweeping upward in strong
arches parallel with the margin and all drawn inward toward the
apex.
With the exception of the delicate and somewhat flexuous
character of the venation, these leaves are strictly comparable
with those of Coruz_s, good species of which, very similar to the
Raritan leaf, occur in the Dakota Group, in Greenland and in
the Magothy formation of Maryland. Doubtless the Raritan
species will evelltually he referred to that genus, meanwhile the
present generic appellation is a sufficient index of its relationship.
This species is rather rare, and as indicated above, ser_,es to
ally the Raritan with somewhat younger formations.
Occurre_ce.--Woodbridge, Milltown.
Collectlo_,_.--U. S. National Museum, N. Y. Botanical Garden.
NEW JERSEY GEOLOGICAL SURVEY