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

_2o THE RARITAN FLORA.
because of the incompleteness of the New Jersey" material, consequently
the present form is here renamed in allusion to tile
horizon from: which it was collected.
Occ_lrrence.--Sayreville.
Collections.--N. Y. Botanical Garden.
Order
Family
UI_TICALE5,
ULMACE_.
Genus PLANERA Gmelin.
(Syst., vol. II, pt. i, t89I, 9. I5o-)
•PLANERA KNOWLTONIAIVA Hollick.
Pl_nera Kno_elton_iam_ Hollick in Newb., F1. Amboy Clays, 69,
pl. 42, f. t-4, 1896.
Desc@tio_.--Leaves ovate in outline, broadest toward the
base, 24 cm. to 5 cm. in length, by I cm. to 2 cm. in breadth, with
an obtusely pointed apex and a rounded, pointed base. Margin
on,tire below for a short distance, elsewhere coarsely serrate,
Midrib thin, somewhat flextmus. Secondaries numerous, 6 to 8
pairs, parallel, fine, not much enrved; they branch from the
midrib at an acute angle, being either opposite or alternate, and
terminate in the marginal teeth. Lateral branches from toward
the tips of some of the seco.ndaries terminate ir_ the intervening
teeth.
This species is frequent at the \Voodbridge locality, but is
rather poorly preserved, as is so often the case with the more
delicate leaves of the smaller 10_lmaeeae. It is very typical of
the leaves of this family in general outline, marginal and venation
characters, and could be compared with a number of later
species of Planers. It is quite distinct, however, from the species
of Planem recently described by the writer from the Bladen
formation, of North Carollna, _
Berry, Bull. Torrey Club, vol. 34, I!;o7, _. 193, lal. II, f. 7, 8.
NEW JERSEY GEOLOGICAL SURVEY