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

i64 THG RARITA_N FLORA.
Magothy formation of Maryland and a new and ornate species.
as yet undeseribed, has been collected from.the upper beds of the
Tuscaloosa formation in Alabama.
Occurrence.--Woodbridge.
Collections.-_N. Y. Botanical Garden.
BAU_IN:A
¢:GANT_ANewb.
Bauhinia ? gigantea Newb., F1. Amboy Clays, 93, pt. 2o, f. ¢,
I896.
Description.--Leaves of immense size for this genus, apparently
very similar to the preceding in general appearance, but
about 20 cm. in diameter, Lobes deeply cleft, more so than in
Bauhfnia cretacea, and possibly reaching quite to the base. The
single nearly complete lobe collected is oblong,, unsymmetrical in
outline, 2o era. long by 7 era. to 8 era. in width, with an almost
straight inner margin. Apex obtuse. The venatiqn is stout, the
principal vein starting at the basal inner margin runs almost
straight to the apex, dividing" the lobe in the ratio of about i to
5, it gives off three camptodrome secondaries internally, the lowest
of which branches slightly below the middle of the lobe.
Externally there are six approxbnately equidistant and parallel
eamptodrome secondaries decreasing reg_ularly in size from the
base upward.
Only two specimens of this species have been discovered, the
more complete one being the single lobe which Prof. Newberry
figalred. However, there can be no question as to its generic relations.
It is very similar to the preceding species, but may be
distinguished by its much larger size, more deeply cut lobes,
undulate outer margin and by the details of venation, one feature
of which is the marked nnsymmetrical position of the principal
vein.
Occurrenve.--Woodbridge.
Collections.--N. Y. Botanical Garden.
NEW JERSEY GEOLOGICAL SURVEY