1892.] NEW YORK ACADEMY OF SCIENCES 29 



manuscript and plates of the "Flora of the Amboy Clays,'' soon 

 to be published as a monograph of the United States Geological 

 Survey. I am also indebted to Dr. N. L. Britton lor assistance 

 in comparing the fos.sils with living si)ecies. Credit for 

 collecting a number of valuable specimens is due to Mr. Wm. T. 

 Davis of the Natural Science Association of Staten Island, and 

 to Mr. Heinrich Ries of the New York State Museum. 



I have thought it best, in view of the unsatisfactor}' character 

 of much of the material, to designate many of the species 

 provisionally, trusting that future investigation njay bring to 

 light sufficient and better material for more exact determinations. 

 The clays are being constantly excavated and plant bearing 

 layers may be exposed at any time which may yield valuable 

 results, so that this paper is to be considered as largely 

 preliminary and the conclusions as subject to modificatiou, so 

 far as some of the identifications of species are concerned. For 

 this reason I have refrained from attempting to describe many 

 new species upon material so fragmentary in character, 

 preferring, whenever possible, to refer the specimens pi-ovi- 

 sionally to previously' described species. 



JUNIPERUS HYPNOIDES, HeEH, 



PI. I. f. 1. 



The specimen identified as above was found by Mr. Wm. T. 

 Davis, in a clay pit at Kreischerville. It appears identical with 

 Heer's species as represented in Flor. Foss. Arct. VI. 47, 48 ; PI. 

 XLIV. f.3 and XL VI. f.l8. This is one of the best preserved 

 specimens which we have from the claj's and it was identified 

 provisionally under the genus Juniperus when first brought to 

 light. (Proc. Nat. Sci. Assn. S. I. September 10th, 1892.) 

 The only other species with which I have thought this might be 

 compared is J. macilenla, Heer. 



Frenelites RiicHii, Ett. 

 PI. I. f. 23. 



In many of the masses of clay examined, wherever plant 

 remains were found, fragments and matted bundles of a conifer 

 were generally prominent, which are almost certainly referable 

 to this species, as represented by Ettingshausen in his Kieide- 

 liora von Niederscbcena, 246, PI- I. f- lOa-lOc, and by Heer, in 



