DESCRIPTIONS OF SPECIES. 57 



Order URTICALES. 

 Family ULMACE.E. 



Planera betuloides n. sp. 

 PI. VIII, fig. 22. 



Leaf elliptical-ovate in outline, 6.5 centimeters long by 2.3 centimeters wide in the middle, coarsely cre- 

 nate -dentate above, entire below; secondary nervation alternate, sparse, diverging from the midrib at acute 

 angles and terminating in the marginal dentitions, lower pair branched from beneath, the branches terminating 

 in the lower dentitions. 



This specimen, although larger, is similar in its general appearance to Planera 

 Knowltoniana Hollick, a and is almost exactly comparable, except in size, with 

 Betula tremula Heer, 6 as may be seen by comparing our specimen with the enlarged 

 figure of the latter species (loc. cit., fig. 9). 



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

 men in U. S. Nat. Mus. 



Family MORACE^. 



Ficus myricoides Hollick. 



PL XI, figs. 8, 9. 



Ficus myricoides Hollick in Newb. Mon. U. S. Geol. Survey, vol. 26 (Fl. Amboy Clays), 1895 (1896), p. 71, pi. 

 32, fig. 18; pi. 41, figs. 8, 9. 



It is with some hesitation that I have decided to refer these specimens to this 

 species, especially when comparing the base of our fig. 9 with the corresponding 

 part of Newberry's fig. 18 (loc. cit.) ; but inasmuch as this latter figure was included 

 with some doubt in the species (loc. cit.), and the other figures compare with ours 

 quite satisfactorily, the reference appears to be justified. 



Locality: Gay Head, Marthas Vineyard, PL XI, fig. 8. Collected by David 

 White. Specimen in U. S. Nat. Mus. 



Glen Cove, Long Island, PL XI, fig. 9. Collected by David White. Speci- 

 men in U. S. Nat. Mus. 



Ficus fracta Velenovsky. 



PL XI, fig. 7. 



Ficus fracta Vel., Fl. Bohm. Kreideform., pt. 4, 1885, p. 10 (71), pi. 8 (31), fig. 15. 



Aralia transversinervia Sap. et Mar. Hollick, Bull. Torrey Bot. Club, vol. 21, 1894, p. 54, pi. 176, fig. 1. 



This is apparently the only record of the occurrence of this species in America, 

 but a comparison with Velenovsky's figure seems to justify the reference, and the 

 geologic horizon from which his species was obtained is known, by reason of other 

 unquestioned species, to be the approximate geologic equivalent of that in which ours 

 was found. 



Locality: Oak Neck, Long Island. Collected by Arthur Hollick. Specimen in 

 Mus. New York Bot. Gard. 



a Newberry, Mon. U. 8. Geol. Survey, vol. 26 (Fl. Amboy Clays), 1895 (1896) p. 69, pi. 42, figs. 1-4. 

 b Fl Foss. Aret., vol. 7, p. 21, pi. .53, fig. lc; pi. 55, fig. 9. 



