GEOLOGICAL SUEVEY OF THE TERRITORIES. 375 



PopuLUS MONODON, Lsqx., Supt., pp. 13 and 14. 



The leaf is smaller than those already described from this place and 

 from the Mississippi Eocene, 6 cent, long, 4 cent, wide, ovate, lanceolate, 

 pointed, ronuded at base, or abruptly narrowed to the petiole, entire 

 and coriaceous. The nervation is that marked in description of this 

 species. 



OiNNA3iO]MnjM MississiPiENSE, Lsqx,, Supt., p. 14. 



Abundant. Already quoted from this locality. 



Eham^'L's OBOYATUS, Lsqx., Am. Jour. Science and Arts, (1868,) p. 207. 



Eepresented by some specimens exactly similar even in size to those 

 obtained from Purgatory Caiion by Dr. Leconte. 



• Gehrung's coaJ-hed, near Colorado Springs. 



The remains of fossil plants are here badly preserved, mixed in great 

 number in a soft, easily disaggregating sandstone. They are mostly 

 broken and undeterminable. The few which could be recognized are 

 the following : 



Saeal Campbellii, (!) NeicJ). 



The same form as that of Eaton Mountains. 



Platajs:us Haydenii, NeicJ). 



Two large well-preserved leaves. 



DOMBEYOPSIS OBTUSA, S2). 710V. 



Leaf round, cordate, very obtuse, with two obtuse scarcely-marked 

 lobes on each side, near the point at the extremity of the lateral veins, 

 which ascend in curving from the base of the medial one. 



The lower part of this leaf is broken, and therefore its description is 

 incomplete. It is from its form and nervation a species of Bomheyopsis 

 allied to D. tridens, Ludw., Pal., PI. xlis. Fig. 3, twice as large, and dif- 

 fering by the very obtuse, round point, and scarcely-marked obtuse 

 lobes. 



FlCUS TILI^FOLIA, Ah Br. 



In large identifiable fragments ; no leaf entire. 



Golden City, Colorado. 



Most of the specimens are from a sandstone easily cut in the line of 

 stratification, and where entire leaves, even of large size, were obtained. 



SCLEEOTIUM EUBELLUM, sp. nov. 



Oval or linear, obtuse, 1 mill, broad, 2 to 4 mill. long, following or 

 mtermediate to the stria; of FlabeHaria ziuckeui, Heer, deeply impressed 



