BOTANICAL DISCUSSION. 117 



some 40 or more in the Cliffwood formation, at Cliffwood, in the same State. 

 Exchiding some species of doubtful identity, there are about 20 species in the 

 insular flora common to both formations. 



On t^ie other hand, the insular flora contains more than 100 well-defined species 

 and a number of other doubtful ones wliich have not yet been recorded from any of 

 the New Jersey horizons. Some of these species are so well defined that they could 

 hardly have escaped attention had they been present in any of the collections made 

 in New Jersey, but recent discoveries by Mr. Edward W. Berry, kindly reported to 

 me, have demonstrated that further collecting will undoubtedly result in adding 

 several of the insular forms to the New Jersey list. In a recent communication 

 transmitted to me by Mr. Berry, relating to material collected at Morgans and 

 at the pits of the Cliffwood Brick Company during the j^ear 1905, a number of 

 additions to the Cretaceous flora of New Jersey are given, which include Magnolia 

 Capellinii Heer, Nelumio Kempii Hollick, Salix protesefolia fiexuosa (Newb.) Lesq., 

 and Cinnamomum Heerii Lesq., which I have therefore included in the table of 

 distribution for those locations. The first two are of special interest, for the reason 

 that their comparative abundance on Long Island and Marthas Vineyard caused 

 them to be regarded as characteristic of the formation at these localities and it was 

 recognized that if the same species were found at other places they would serve as 

 important correlation factors. Of yet further significance in connection with this 

 flora, made knowm by Mr. Berry, may also be noted the occurrence of another 

 species of Nelumho (N. primaeva Berry), which, however, Mr. Berry is now inclined 

 to consider as a small form of N. Kempii, and a Salvinia {Salvinia sp.), both of 

 which genera are represented in the insular flora on Long Island, but not in that 

 of the Amboy clays as described by Newberry. 



The beds fi'om wliich Mr. Berry's collections were made are intermediate in 

 their stratigraphic position between the typical Raritan plastic clays of the Wood- 

 bridge and Amboy horizons and the typical Cliffwood clay marls of the Cliffwood 

 bluff, and may therefore be expected to yield a number of species not found either 

 below or above them, and the probabilities are that among these, when further col- 

 lections are made, will be included other species of the insular flora which have not 

 ^as yet been discovered on the mainland. 



In this comiection it may be pertinent to quote the following abstract from 

 pages 415 and 416 of my paper on "Additions to the Palaeobotany of the Cretaceous 

 Formation on Staten Island, No. II,"'' written before the above mentioned dis- 

 coveries of Mr. Berry were reported : 



It was previously taken for granted that all the Cretaceous strata on Staten Island were contmuatKjs of 

 those at Perth Amboy and Woodbridge, and that the fossil plants found in them or derived from them would 

 prove to be identical with those of the mainland. Such, however, has not been found to be the case, and this fact 

 has seemed to indicate that some of the strata from which the Staten Island plants were derived may represent 

 a difl'erent and presumably a higher member of the Amboy clay series than do those represented at the New 

 Jersey localities mentioned. * * * If a geological map of New Jersey be examined and the trend of the 

 clay outcrops be theoretically extended on to Staten Island, it may be readily seen that the lower beds, repre- 

 sented by those at Woodbridge, Sayreville, Perth Amboy, and possibly South Amboy, w- did strike the western, 

 shore of Staten Island in the vicinity of Tottenville and Kreischerville, while the upper beds, represented by 



<J Annals New York Acad. Sci., vol. U, 1898, pp. 415-430. 



