338 Systematic Paleontology 



resentatives of this same form. It is doubtful if the Bohemian specimens 

 are distinct. 



Occurrence. — Patuxent Formation. Kankeys, Cockpit Point, near 

 Potomac Eun, Virginia. 



Collection. — IT. S. National Museum.. 



Podozamites subpalcatus Fontaine 

 Plate LIII, Figs. 2, 3 



Podozamites suhfalcatus Fontaine, 1890, Mon. U. S. Geol. Survey, vol. xv, 



1889, p. 179, pi. Ixviii, fig. 6; pi. clxx, fig. 9. 

 Zamites ovalis Fontaine, 1890, Mon. U. S. Geol. Surv., vol. xv, 1889 (pars). 



p. 173. 



Description. — " Leaves unknown ; leaflets subf alcate, narrowly ellip- 

 tical to strap-shaped, obtuse or subacute, gradually narrowed to the base 

 so as to form a broad, short pedicel, thick and leathery; nerves slender, 

 and not well disclosed, forking near the base, then nearly parallel to near 

 the tips, where they converge." — Fontaine, 1890. 



This species was based upon rare and detached fragments from the 

 72 d milepost, near Brooke, and was compared by its describer with P. 

 ovatus (Schenk) Schimp., and P. affinis (Schenk) Schimp. It is prac- 

 tically identical with the forms from the Cenomanian of Bohemia, which 

 Velenovsky ^ refers to Podozamites Eichwaldi Schimp., and is not dis- 

 tinguishable from many of the fine specimens of this' Jurassic species 

 figured by Heer.^ 



Occurrence. — Patuxent Formation. Telegraph Station (Lorton), 

 Virginia. Patapsco Formation. Near Brooke, Virginia. 



Collection. — U. S. National Museum. 



Podozamites acutifolius Fontaine 

 Plate LIII, Fig. 4 



Podzamites acutifolius Fontaine, 1890, Mon. U. S. Geol. Survey, vol. xv, 

 1889, p. 181, pi. Ixxx, fig. 6; pi. Ixxxv, figs. 10, 15; pi. Ixxxvii, fig. 1; 

 pi. clxx, fig. 2. 



^Velenovsky, Gym. bohm. Kreidef., 1885, p. 11, pi. ii, figs. 9, 10, 23. 

 'Heer, Fl. Foss. Arct, Bd. iv, Abth. i, 1876, p. 36, pi. vi, fig. 22c; pi. vii, 

 g. 7e; pi. viii, figs. 1-4. 



