36 FLORA OF SOUTHERN NEW YORK AND NEW ENGLAND. 



Order CONIFERALES. 



Family GINGKOACE^E. 



Czekanowskia dichotoma (Heer) Heer? 



PI. V, fig. 7. 



Czekanowskia dichotoma Heer, Fl. Foss. Arct., vol. 6 (abth. 2), 1882, p. 14, pi. 2, figs. 12b, 12c; pi. 3, fig. 1. 

 Sclerophyllina dichotoma Heer, ibid., vol. 1, 1868, p. 82, pi. 44, fig. 6; vol. 3 (Kreide-FL), 1874, p. 59, pi. 17, 

 figs. 10, 11, lib; pi. 20, fig. 6d; Hollick, Bull. New York Bot. Gard., vol. 2, 1902, p. 404, pi. 41, fig. 10. 



This specimen is too fragmentary for other than a provisional identification, 

 but it resembles some of the dismembered specimens depicted by Heer, especially 

 those in his figs. 10 and 11, pi. 17 (loc. cit.). 



Locality: Chappaquiddick, Marthas Vineyard. Collected by Arthur Hollick. 

 Specimen in Mus. New York Bot. Gard. 



Baiera grandis Heer? 



PL II, figs. 44-46. 

 Baiera grandis Heer, Fl. Foss. Arct., vol 3 (Kreide-FL), 1874, p. 37, pi. 3, fig. 4. 



The specimens from which these figures were drawn were selected from among a 

 number of others, all of them either fragmentary or else ill defined. Fig. 44 represents 

 a distorted specimen, in which part of the margin is bent underneath. It is there- 

 fore of little value for comparison; but figs. 45 and 46 agree quite well with Heer's 

 figure above quoted. Whatever genus or species may be represented by these 

 remains it was evidently a more or less common element in the Cretaceous flora of 



this region. 



Locality: Gay Head, Marthas Vineyard. Collected by David White. Speci- 

 mens in U. S. Nat. Mus. 



Protophyllocladus subintegrifolius (Lesquereux) Berry. 



PL V, figs. 1-6. 



Protophyllocladus subintegrifolius (Lesq.) Berry, Bull. Torrey Bot. Club, vol. 30, 1903, p. 440; ibid., vol. 31, 



1904, p. 69, pi. 1, fig. 5. 

 Phyllocladus subintegrifolius Lesq., Am. Jour. Sci., vol. 46, 1868, p. 92. 

 Thinnfeldia Lesquereuxiana Heer, Fl. Foss. Arct., vol. 6 (abth. 2), 1882, p. 37, pi. 44, figs. 9, 10; pi. 46, figs. 



l-12b; Hollick, Trans. New York Acad. Sci., vol. 11, 1892, p. 98, pi. 3, fig. 6; Bull. Geol. Soc. Am., vol. 7, 



1895, p. 13; Annals New York Acad. Sci., vol. 11, 1898, p. 58, pi. 3, figs. 4, 5; ibid., p. 419, pi. 36, fig. 6; 



Newberry, Mon. U. S. Geol. Survey, vol. 26 (Fl. Amboy Clays), 1895 (1896), p. 59, pi. 11, figs. 1-17. 

 'Thinnfeldia subintegrifolia (Lesq.) Knowlton, Bull. U. S. Geol. Survey No. 152, 1898, p. 228; Hollick, Bull. 



New York Bot. Gard., vol. 2, 1902, p. 403, pi. 41, figs. 13, 14. 



This species was evidently an important element in the Cretaceous flora of 

 North America. It is represented in the collections of Heer from Greenland and 

 of Lesquereux and others from the western United States. It has been found in 



