ROSALES. i6i 



Genus CAESALPINIA Linne. 



(Sp. PL, 1753, p. 380.) 

 Caesalpinia Cookiana HolHck. 



Ccesalpinia Cookiana Hollick in Newb., Fl. Amboy Clays, 94, 

 pi. 42, f. 4p, 50, 1896. 



Description. — Leaflets of small size, elliptical in outline, entire, 

 I cm. to 1.4 cmi. in length by 8 mm. or 9 mm', in breadth across 

 the middle. Apex and base about equally rounded. Texture 

 delicate. Midrib slender. Secondaries few, distant, about 3 

 subopposite pairs ; they branch from the midrib at a wide angle, 

 about 80°, and are, with the exception of the lower pair, straight 

 two-thirds of the distance to^ the margin, where they turn upward 

 in broadly rounded ardhes parallel with the margin to join the 

 secondaries next above. 



The generic affinity of these fossils is doubtful. They almost 

 certainly represent the leaflets of some compound leguminous 

 leaf, and as nothing is to be gained by an attempt to redefine 

 their generic relations, they are left where they were placed by 

 their describer. The exact locality in the Raritan from which 

 they were collected remains unknown. 



Occurrence. — Locality unknown. 



Collections. — ^N. Y. Botanical Garden. 



Caesalpinia raritanensis Berry. 

 Plate XX, Fig. 3. 



Caesalpinia raritanensis Berry, Bull. Torrey Club, vol. 36: 251, 

 1909. 



Description. — Elliptical leaflets about 3 cm. long and 2.2 cm. 

 broad, with markedly emarginate apex; midrib missing; second- 

 aries branching at a wide angle, almost 90° and but slightly 

 curved, anastomosing by broad, evenly rounded loops, about two- 

 thirds of the distance to the margin. 



