E. W. Berry — A Petrified Palm. 197 



The Cliffwood form is distinct from all of the foregoing. 

 In general appearance it is most like P. scleroticum Vater, 

 especially in the distribution and general proportions of the 

 bundles, in the nature of the parenchyma and the bast fibers. 

 The latter species is distinguished by its larger vessels and by 

 the presence of auxiliary sclerenchyma bundles throughout the 

 groundmass. 



About a dozen Upper Cretaceous species of palms have been 

 described from leaves or fruits both in Europe or North Amer- 

 ica, showing the apparent suddenness with which they appear 

 in the geological record at widely scattered localities. 



Johns Hopkins University, Baltimore, Md. 



EXPLANATION OF FIGURES. 



Figs. 1 to 4. Palmoxylon cliffivoodensis Berry, sp. nov. , from the Mago- 

 thy formation at Cliffwood Bluff, N. J. 



Fig. 1. Transverse view of a fragment of stem, nat. size. 

 Fig. 2. Same, times 2. 



Fig. 3. Longitudinal view of a fragment of stem, nat. size. 

 Fig. 4. Microphotograph of transverse section, times 20. 



