260 MESOZOIC FLORAS OF UNITED STATES. 



This plant was first found bj^ me in the Lower Potomac beds of Virginia, 

 where it is quite widely diffused. In the Shasta formation a considerable 

 number of fragments of narrow strap-shaped leaflets have been found that 

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

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

 their true place. In no point do they differ from corresponding detached 

 fragments of Nageiopsis longifolia. The nerves agree with those of this 

 fossil in being few in number and rather remote. Some of the fragments 

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

 lancet fashion, as is the case with the leaflets of A^. longi-folia. 



The specimens occur at localities Nos. 1, 9, 14, 18, 20, and 22, but 

 are nowhere abundant. 



Nageiopsis latifolia Fontaine.? 



PL LXVIII, Fig. 1.3. 



1889. Nageiopsis latifolia Font., Potomac Flora (Monogr. U. S. Geol. Surv., Vol. 



XV), p. 198, pi. Ixxxii, fig. .3. 

 189.5 [1896]. Nageiopsis latifolia Font., in Stanton: Bull. U. S. Geol. Surv., No. 133, 



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 lati-folia, 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 be 

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

 place with certainty. 



Family PINACEiE. 



Genus ABIETITES Hisinger. 



Abietites ellipticxjs Fontaine. 



PI. LXVIII, Fig. 14. 



1889. Abietites ellipticus Font., Potomac Flora (Monogr. U. S. Geol. Surv., Vol. XV), 



p. 263, pi. cxxxii, figs. 8, 9; pi. cxxxiii, figs. 2-4; pi. clxviii, fig. 8. 

 1894. Abietites californicus Font, in Diller & Stanton: BuU. Geol. Soc. Am., Vol. V, 

 p. 450 (nomen). 



