228 THE RARITAX FLORA. 



and for this reason it has been placed in the comprehensive form- 

 genus Phyllites. 



Occurrence. — South Amboy. 



Collections. — U. S. National Museum. 



Phyllites undulatus Newb. 



phyllites undulatus Newb., Fl. Amboy Clays, 131, pi. 24, f. 10, 

 1896. 



Description. — Leaf large, broadly elliptical in outline, ap- 

 parently about 7 cm. in length, by 6 cm. in greatest breadth. 

 Apex broadly rounded. Base destroyed. Margin pronouncedly 

 undulate. Venation fine, but distinct. Midrib slender and fiexu- 

 ous. Secondaries remote, about five pairs, alternate, branching 

 at an acute angle, curved, camptodrome. 



This species is unfortunately based upon a single specimen, 

 \vhich lacks the basal portion. It is obviously distinct from the 

 other forms known from the Raritan formation, although it may 

 possibly be an aberrant leaf of CelastrophyUumiindidatum, Newb. 

 Since, how'ever, this cannot be conclusi\'ely proven, it is here 

 retained in the ambiguous genus PJiylhtes, to which it was as- 

 signed by Prof. New^berry. 



Occurrence. — Woodbridge. 



Collections. — N. Y. Botanical Garden. 



