260 MESOZOK" FLORAS OF UNITKI) STATES. 



Thi.s ])lant was first fouiul hv me in tlie Lower Potomac beds of \'irgiiiia, 

 where it is (Hiite widely diffused. In tlie Shasta formation a considerable 

 mimhei- of fragments of narrow sti'ap-shaped leaflets have been found that 

 strongly resemble those of the Potomac plant. As no entire leaflets were 

 foinul. and none of the fragments were attached, there is some doubt as to 

 their ti-ue place. In no point do they differ from corresponding detached 

 fragments of Xagciopsis longifolki. The nerves agree with those of this 

 fossil in l^eing few in number and rather remote. Some of the fragments 

 show the basal part of the leaflet, and this narrows very gradtially, in 

 lancet fashion, as is the case with the leaflets of N . longifolin. 



The specimens occur at localities Nos. I, 9, 14, 18, 20, and 22, but 

 are nowhere abiuidant. 



Nageiopsis i>.\tifoi,i.\ Fontaine.^ 

 PI. LXVIII. Fig. i;^. 



1889. Nageiopsis latifoJia Font.. Potoniuc Flora (Monogr. I^ S. Geo!. Surv., Vol. 



XV), p. 198. pi. Ixx.xii, fig. 'A. 

 1895 [1S96]. Nageioj)s!s IntiJoUa Font., in Stanton : Bull. V . S. Geol. vSurv., No. i;-;^, 



p. 22. 



One specimen of a fragment of a large leaflet was found near Riddles, 

 Oreg. This is given in PL LXVIII, Fig. 13. The fragment shows a con- 

 siderable portion of the leaflet, with a good deal of one margin pre- 

 served. The leaflet seems to have been elliptical in form and of large 

 dimensions, for the base, extremity, and one margin are gone, and yet the 

 width of the part preserved is 35 mm., while its length is 85 mm. It is 

 much like Nageiopsis latii'olia, a plant of the Lower Potomac of Virginia. 

 Of course with so small an amount of imperfect material it is not possible 

 to positively determine the true position of this plant. The same may l)e 

 said of the Potomac plant, for the fossils found were not sufficient to fix its 

 place with certainty. 



Family PINACEiE. 



Genus ABIETITES Hisinger. 



Abietite.s ellipticus Fontaine. 



PI. LXVlll, Fig. 14. 



1889. AUetites ellipticus Font., Potomac Floia (Monogr. U. S. Geol. Surv., Vol. XV), 

 p. 268, pi. cxxxii, figs. 8, 9; pi. cxxxiii, figs. 2-4; pi. clxviii, fig. 8. 



1894. AUetites mrifomicus Font, in Diller & Stanton: Bull. Geol. See. Ain., Vol. V, 

 p. 450 (nomen). 



