28 TRANSACTIONS OF THE [NoV. 14 



ApDITIONS TO THE PALEOBOTANY OF THE CrETACEOUS FORMATION 



ON Staten Island. 

 By Arthur Hollick, 



In a previous communication * I gave an account of the fossil 

 leaves found upon Staten Island which could be indisputably 

 recognized as Cretaceous species, the object being to demon- 

 strate the occurrence and probable extent of the Cretaceous 

 formation in that locality. — Quite a large amount of the 

 material then in m}' possession I had not determined, as noted 

 at the close of my former coutriljution, and more has since come 

 to light. All this material has recently been subjected to care- 

 ful examination and coniparison and the results obtained form 

 the basis of this paper. 



The remains, consisting of leaves, stems, fruits and seeds, are 

 found in place, imbedded in the Cretaceous clays, or else in 

 ferruginous sandstone and concretions, evidently derived from 

 the clays, but now distributed through the glacial drift which 

 overlies them. Those which occur in the clays are in the condi- 

 tion of lignite, wliich disintegrates upon exposure and soon 

 renders them useless for accurate studv or identification. 

 Drawings of these were made as quickly as possible after collec- 

 tion but many were destroyed before they could be depicted. 

 Those which occur in the sandstones and concretions are mostly 

 in the nature of impressions onl}' — the lignite having entirely 

 disajDpeared. Many of these impressions are ver}' perfect and 

 afford exceedingly satisfactory subjects for study. 



The additions number about forty species, a large part of 

 them not before recorded from the eastern United States, 

 although described by Prof. Oswald Heer, from Greenland and 

 by Prof. Leo Lesquereux from the western United States. 

 Nine represent new species in the genera Popudis, Myrica, 

 Platan ns^ Ficiix, Knimin, Acer, Ulagihilia, mid Tt7//w»!so»m, besides 

 remains of uncertain affinities, consisting of leaves, fruits, and 

 seeds. 



In the study of this material 1 wish to acknowledge the 

 assistance which I have obtained from Dr. J. S. Newberry's 



* Palaeontology of the Cretaceous Formation on Staten Island. Trans. N. Y. 

 Acad. Sci. xi. 96-103. 



