ROSIALES. 163 



no reasonable doubt that we here have the remains of a well- 

 marked species of this genus, wdiich grew near the mouth of the 

 Hudson river in the middle of the Cretaceous age, and was the 

 associate of the mlagnolias, tulip trees, aralias, etc.. which com- 

 posed 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 w^as 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, etc. The genus is closely related to Cercis, and 

 most of the species have a similar habit. In a few the leaves 

 are orbicular or slightly emarginate, but they are generally 

 bilobed, the sinus reaching the middle of the leaf, sometimes ex- 

 tending to the base, as is the case with the only species inhabiting 

 the United States, B. lunariodes Gray of Texas and Mexico." 



"In most of the East India species the nervation is more 

 crowded than in the fossil leaves before us, each having three 

 and sometimes four lateral nerves, the medial nerve, however, 

 being quite the same. In several oriental species, and all those 

 of the New World, the nervation is simpler and especially like 

 that of the fossil." 



A fossil species of Bauhinia from the Tortonian deposits of 

 Oeningen, Baden, was described by Heer as long ago as 1859.^ 

 Soon afterward Unger described two additional species,- both 

 based on pods, from Croatia. Five years later the same author 

 described another species from the Aquitanian of Kumi, Greece.'^ 

 In 1885 Velenovsky described another species from the Ceno- 

 manian of Bohemia^ without, however, recognizing its true 

 relationship. The next year Professor Newberry described the 

 foregoing species, and the following species was added to the 

 Raritan flora when his monograph came out in 1896. In 1908 

 the writer described a small but striking new species" from the 



' Heer, FI. Tert. Helv., vol. 3: 109, pi. 134, f. 21, 1859. 

 'Unger, Sylloge, vol. 2:31, pi. 11, f. 2, 3, 1862. 



Unger, Foss, Fl. v. Kumi, 61, pi. 15, f. 36, 1867. 



Velenovsky, Fl. Bohm. Kreidef. Th. 4: 12, pi. 6, f. 4, \i 



Berry, Torreya, vol. 8:218, f. 3, 1908. 



