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

19o TH.E RARITA_N FLORA.
Hollick, Ann. N. Y. Acad. Sci., vol. 11:6o, pl. 4., f. z-d,
1898 ; Mon. U. S. Geol. Surv., vol. 5° : 96, pl. 35, f. z-8,
I0-12, 1907 .
Berry, Bull. N. Y. Bot. Garden, vol. 3:87, pl. 53, f. 3, 19o3;
Bull. T'orrey Club, vol. 31:78, pl. 4, f. 5, 19o4; Ibid.,
vol. 33 : 18o, I9o6; Ibid., vol. 34 : 2Ol, pl. 15, f. 4, I9O7.
Myrtophflhtm I_Varderi Lesq., F1. Dakota Group, I36, pl. 53, f.
IO, i892.
Hollick, Mon. U. S. Geol. Snrv., voI. 5o:97, pl. 35, f. I3,
19o7.
Eucalyptus ? angustifolia Newb., (non Desv. 1822) FI. Amboy
Clays, III, pl. 32, f. z, 6, 7, 1896.
HolIick, Bull. N. Y. Bot. Garden, vol. 3:408, pl. 7o, [. 8,
9, 19o4; Mon. U. S. Geol. Surv., vol. 5o:95, pl. 35, f.
9, I4, I5, 19o7.
Description.--"M. ioliis pctiolatis, coriaceis, anguste laneeolatis,
nervis secundariis sub-an_do aeuto egredientibus." Heer,
1872.
A very large number of somewhat variable leaves have been
referred to this species since it was described by Heer in 1869
as the type of the genus M3,rtophylhtvn and based upon material
from the Cenomanian of Moravia. In 1882 the same author
definitely referred this form to the genus Eucalyptus.
These diverse appearing leaves are, as a rule, of the same general
type, aid differ merely in size or in the closeness or remoteness
of their secondaries, and it seems doubtful if the species as
at present understood is composite, as has been claimed by some
authors.
In general these leaves are lanceolate in outline (ovate-lanceolate
in some Bohemiau specimens), broadest near the middle
and almost equally tapering in both directions to the acute apex
and base. The petioles are very stout, as is the prominently raised
midrib. Secondaries numerous, thin, branching from the midrib
at acute angles, about 45 ° , and running with but slight curvature
to the marginal hem, which is either almost straight where the
secondaries are close-set or more or less bowed where tbe sec-
NEW JERSEY GEOLOGICAL SURVEY