68 FLORA OF SOUTHERN NEW YORK AND NEW ENGLAND. 



Newberry, which resemble ours more closely than any of those which he figured. It 

 is interesting to note that a leaf from Gay Head figured by Hitchcock, to which, 

 however, he did not give any name, unquestionably belongs to this species, as may 

 be seen by comparing it a with Newberry's figures (loc. cit.). 



Locality: Glen Cove, Long Island, PL XIX, fig. 5, PL XX, fig. 5. Collected by 

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



Gay Head, Marthas Vineyard, PL XX, fig. 8. Collected by Edward Hitchcock. 



Liriodendron oblongifolium Newberry? 



PL XXI, fig. 8. 



Liriodendron oblongifolium Newb., Bull. Torrey Bot. Club, vol. 14, 1887, p. 5, pi. 61, fig. 1; Mon. U. S. Geol. 

 Survey, vol. 26 (Fl. Amboy Clays), 1895 (1896), p. 81, pi. 52, figs. 1-5; Hollick, Bull. Torrey Bot. Club, 

 vol. 21, 1894, p. 62, pi. 179, fig. 3. 



This specimen, while it has much the appearance of a median portion of a leaf of 

 this species, is altogether too fragmentary for any but provisional reference, espe- 

 cially as it is the only specimen of this species in the insular flora collections. 



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

 Mus. New York Bot. Gard. 



Liriodendron prim^evum Newberry. 



PI. XXI, fig. 7. 



Liriodendron primsevum Newb., Annals New York Lye. Nat. Hist., vol. 9, 1868, p. 12; Mon. U. S. Geol. Survey, 

 vol. 35 (Later Ext. FL N. Am.), 1898, p. 96, pi. 6, fig. 7; Hollick, Trans. New York Acad. Sci., vol. 12, 1892, 

 p. 35, pi. 3, fig. 4. 



This single specimen, which fortunately, however, is well preserved, is all that 

 we have to represent the species in any of the collections of Cretaceous plants from 

 eastern North America. Both Heer 6 and Lesquereux c included this species with 

 the unlobed, emarginate leaves which Newberry placed in the genus Liriodendropsis . 

 His views in this connection may be found expressed in the Flora of the Amboy 

 Clays^ on pages 79, 80, and I have no hesitation in regarding his conclusions in this 

 respect as valid. 



Locality: Tottenville, Staten Island. Collected by Arthur Hollick. Specimen 

 in Mus. Staten Island Assn. Arts and Sci. 



Liriodendron attenuatum n. sp. 



Pi. XXI, figs. 9-11. 



Liriodendron primsevum Newb., Hollick, Bull. Torrey Bot. Club, vol. 21, 1894, p. 61, pi. 179, fig. 4. 



Leaves obscurely 2-lobed, entire, rounded below to a wedge-shaped base, constricted above to an emar- 

 ginate apex; secondary nerves numerous and fine, diverging from the midrib at acute angles, soon branching 

 and forming an irregular network with the tertiary nerves. 



The first specimen of this species discovered, represented by our fig. 9, was 

 thought to be a form of L. primsevum Newb. and was so described by me (loc. cit.), 



a Reproduced in our PL XX, fig. 8. cMon. U. S. Geol. Survey, vol. 17 (Fl. Dak. Gr.), 1892, p. 203. 



6 Fl. Foss. Arct., vol. 6 (abth. 2), p. 87. dMon. U. S. Geol. Survey, vol. 26. 



