188 Trans. Acad. Sci. of St. Louis. 



Peale, A. C. — Ann. Kept. U. S. Geol. Surv. Terr. 1873: 

 210. Washington, 1874. 



Sapor la el Marion. — Recherches sur les Vegetaux Fossiles 

 de Meximieux. 1876. 



Schimper, W. P. el A. Mougeol. Monographie des Plautes 

 FossilevS des Gres Bigarre de la Chaine des Vosges, Leip- 

 zig, 1844. 



Scudder, S. H. The Tertiary Lake Basin of Florissant, 

 Colorado, between South and Hayden Parks. (Bull. U. S. 

 Geol. and Geog. Surv. Terr. 6, No. 2: 279-300. 1881). 



Seward, A. (J . Fossil Plants for Students of Botany and 

 Geology. 1. Cambridge, 1898. 



Solms-Lauhach. Fossil Botany. Oxford, 1891. 



linger, F. Die fossile Flora von Sotzka. 1850. — Beitrage 

 zur Flora der Vorvvelt. 1847. 



Uniled States. Ann. Repts. of Geol. Surv. Mont, and Adj. 

 Terr., Hayden, 1871 (1872); Geol. Surv. Terr., Hayden, 

 1872 (1873) ; Geol. and Geog. Surv. Terr., Hayden, 1873 

 (1874); Geol. and Geog. Surv. Terr., Hayden, 1875 

 (1877); Geol. and Geog. Surv. Terr., Hayden, 1877 

 (1879). 



Velenovsky, J. — Dis Flora aus den Ausgebranuten Tertiaren 

 Letten von Vrsovic bei Laun. (Abhand. d. k. bohm. 

 Gesellsch. d. Wissensch. 6: 11. Prag, 1881-1882). 



Zittel, E. A. Haudbuch der Palaeontologie. Abt. 2. 1890. 



EXPLANATION OF ILLUSTRATIONS. 



Plates XI-XV. 



(All of the figures slightly reduced, unless otherwise noted.) 



Plate XI. — 1, Acer Florissanti. 2, A. mysticum. 



Plate XII, — I, Diospyros cuspidata. 2, Rhus rotundi folia. Z, Ficus Hay- 

 denii. 4-4a, Hypnum Broivnii, the latter enlarged. 



Plate XIII. — 1, Zizyphus obtusa. 2, Juglans affinis. 3, Finns Hambachi. 



Plate XIV. — 1, Juglans Crossii. 2, Ilex rigida, 3. Sterculia Engleri. 



Plate XV. — I, Oaagraceous? flower. 2, Convolvulaceous? flower. 3, 

 Bhamuns eUipticus. 4, Populus pyrifolia. 



Issued December 10, I SOS. 



