DESCRIPTION OF SPECIES. 9] 
are quite distinct from any other leaves in the collection, I have thought 
best to designate them by the above name. 
Locality: Woodbridge. 
BAUHINIA CRETACEA Newb. 
Pl, XLII, figs. 1-4; Pl. XLIV, figs. 1-3. 
Bauhinia eretacea Newberry, Bull. Torrey Bot. Club, Vol. XIII, New York, May, 
1886, p. 77, PI. LVI, fig. 5. 
Leaves large, from 10°™ to 18° in diameter, general outline circular, 
deeply two-lobed, sinus reaching below the middle, margin entire, base 
rounded, lobes oblong or broadly spatulate; nervation strong, radiate or 
bilateral, midrib slender, from 1™ to 4°™ in leneth, running to bottom of 
medial sinus, there forking equally, each slender branch running’ parallel 
with the margin of the sinus; lateral nerves strong, usually two, rarely 
one on each side, springing from a common base, the interior lateral nerve 
strongest, forking several times and giving off fine branches, which inoscu- 
late to form a graceful festoon near the upper margin; the exterior lateral 
nerves throwing off numerous branches which anastomose in loops near the 
margin, producing a camptodrome nervation. In those which have but a 
single lateral nerve the lobes are narrower, and each is covered with the 
ramifications of the branches, which spring chiefly from the outer side of 
the single main nerve. 
The form and nervation of these leaves are so precisely those of some 
of the Bauhinias of the present flora that there can be no reasonable doubt 
that we here have the remains of a well-marked species of this genus, 
which grew near the mouth of the Hudson River in the middle of the 
Cretaceous age, and was the associate of the Magnolias, tulip trees, Aralias, 
etc., which composed the angiosperm forest of eastern North America. In 
size some of these leaves exceed those of any living Bauhinia, and the 
outline and nervation indicate that the genus was as perfectly defined and 
highly specialized in the Cretaceous age as now. 
The living Bauhinias inhabit the tropical and subtropical regions of 
the Old and New Worlds, India, Mauritius, Surinam, Cuba, Mexico, ete. 
The genus is closely related to Cercis, and most of the species have a 
