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

GINKGOALES. ,, . _oI
Jurassic, It co,ntinued into the Cretaceous, but is much reduced
in numbers and importance, a single form occuring in the Lower
Cretaceous.
Occurrence.--\,V oodbridge.
Collectlons.--N. Y, Botanical Garden.
Genus CZEKANOWSKIA Heer.
(FI. Foss. Arct., vol. IV, ab, ii, I876, p. 70,)
CZEKANOWSKIA CAPILLARIS Newb,
Cveka_o_¢,skia_ capiltaria- Newb., F1. Amboy Clays, 61, pl. 9, f.
_4-z6, i896.
_Smith, Geol. Coastal Plain in Ala., 34-8, I894 (Nomen
nudum.)
Descriptiou.--Leaves linear or capillary, long and slender, undivided
(?) or dichtomously forked. Length $ era. to 5o era.
Judging by the extremely poor material at our coramand they
_rew in bundles and were apparently caducous.
The genus was established by I-Leer in I876, and its relations
have caused considerable discussion, some authors comparing it
with lsoetes. Both S_:henk and Seward, from the stomatal character,
place the genus among the Gy_nosperms. Among the
latter it falls most naturally in the order Ginkgoales, although
this relationship is disputed ix_.some quarters. It is easemially
a Jurassic type, appearing, however, irt the Rhaetie and surviving
as late as the Upper Cretaceous, apparently becoming extinct in
the Ceuomanian, the European C,_ekanoatsleia _erz_os_ Heer,
which is recorded by Fontaine I from the Lowi_r Cretaceous of
the Black Hills, ranging from the Aptian throngh the Alhian
into the Cenomanian of Portugal.
Occ_rrenge._Woodbridge.
Colleellons.--N. Y. Botanical Garden.
Fontaine, Ann, Rept. U, E. Geol. _urv. I9th, Dr. :l, _:39. P. 685, pl. i69, f.
*,2.
NEW JERSEY GEOLOGICAL SURVEY