DESCRIPTIONS OF SPECIES, 35 



SPEKMATOPHYTA. 



Class GYMNOSPERMJE. 



Order CYCADALES. 



Family CYCADACE^. 



Podozamites lanceolatus (Lindley and Hutton) Schimper. 



PL II, fig. 1. 



Podozamites lanceolatus (Lind. and Hutt.) Schimp., Paleont. Veg., vol. 2, 1870, p. 160. 

 Zamia lanceolata Lindl. and Hutt., Foss. Fl. Great Britain, vol. 3, 1837, pi. 194. 



Podozamites angustifolius (Eichwald) Schimper. Newberry, Mon. U. S. Geol. Survey, vol. 26 (Fl. Amboy Clays) r 

 1895 (1896), p. 44, pi. 13, fig. 2; Hollick, Bull. New York Bot. Gard., vol. 3, 1904, p. 410, pi. 71, fig. 8. 



This specimen, the only perfect cycad leaf thus far found within the area covered 

 by this work, is apparently identical with the specimen from Woodbridge, N. J., 

 described and figured by Newberry as P. angustifolius (loc. cit.), to which species I 

 also formerly considered our specimen to belong. A more careful comparison, how- 

 ever, has led me to believe that these determinations were erroneous, especially after 

 comparison with Velenovsky's figures of P. lanceolatus from the Cretaceous of 

 Bohemia/ and Heer's from the Jurassic of Siberia. b This would imply a consider- 

 able vertical range for the species, but no greater than is known in some other per- 

 sistent specific types, and in this connection it is of interest to record that in Alaska 

 there has been found a fossil flora in which apparently Jurassic species of cycads are 

 associated with undoubted Cretaceous angiosperms. c 



Locality: Glen Cove, Long Island. Collected by Arthur Hollick. Specimen 

 in Mus. New York Bot. Gard. 



Podozamites sp. 



PL VI, figs. 1-3. 



Podozamites sp., Hollick, Bull. Torrey Bot. Club, vol. 21, 1894, p. 62, pi. 180, fig. 4; Bull. New York Bot. Gard. 

 vol. 2, 1902, p. 401, pi. 41, figs. 8, 9. 



These, and a few other similar fragmentary remains, which probably repre- 

 sent leaves of cycads, are not very abundant in our collections, although several 

 species have been recorded from the clays and clay marls of New Jersey, by New- 

 berry^ and by Berry, 6 to some one or another of which ours might be referred. 



Locality: Chappaquiddick, Marthas Vineyard, PI. VI, figs. 1, 3. Collected 

 by Arthur Hollick. Specimens in Mus. New York Bot. Gard. 



Glen Cove, Long Island, PI. VI, fig. 2. Collected by Arthur Hollick. Speci- 

 men in Mus. New York Bot. Gard. 



a Gymnosp. Bohm. Kreideform., pi. 2, figs. 11-19, 24 in part. 



b Fl. Foss. Arct., vol. 5 (Nachtr. Jura-Fl. Irkutsk), 1878, pi. 5, figs. 1-10. 



c Manuscript rept. by Dr. F. H. Knowlton, U. S. Geol. Survey, on specimens collected by A. J. Collier in 1902. This asso- 

 ciation of floras was subsequently verified by means of specimens personally collected in 1903 at Collier's locality on Yukon 

 River. 



d Podozamites angustifolius (Eichw.) Schimp., P. acuminatus Hollick, and P. marginatus Heer. Mon. U. S. Geol. Survey, 

 vol. 26, 1895 (1896) (Fl. Amboy Clays), pp. 44, 45, pi. 13, figs. 1-7. 



e Podozamites marginatus Heer. Bull. New York Bot. Gard., vol. 3, 1903, p. 99, pi. 46, figs. 1-3. 



