LESQUEEEux.] CATALOGUE OF CRETACEOUS AND TERTIAEY FLORA. 487 



able ; Ficus lynx, TJug., a Liquidamhar slightly distiuct from L. Euro- 

 peum by its lobes oblong and nearly obtuse, rather than acuminate. As 

 there is one leaf only, this difference cannot be positively ascertained as 

 specific ; a leaf of large size, apparently a Tilia ; Cinnamomum Scheiich- 

 zeri; the half of another very large leaf, a Quercm, related by its dentate 

 borders and its size to Q. Moorii, Lesqx., but differing by the lateral 

 nerves more open, nearly in right angle to the midrib, and more arched ; 

 a JDiospyros, a P/iragmites, and a leaf of Acer, remarkably similar to those 

 figured and described by Massalongo as Liquidamhar Scarabelliamnn, 

 apparently a variety of Acer Trilobatum ; one species of Rhus; a Jfhj- 

 rica, of the type of 31. speciosa, Ung.; a fine ZizypJms, allied to Z. Ulicefo- 

 lius, but differing by a long petiole and other less marked characters ; 

 seeds of Ailanthus; leaves of a Laurus; and petaloidal involucres not 

 yet determined. 



This review is, of course, a superficial one. It gives only an insight 

 into the general characters of the two vegetable groups represented 

 by the specimens, the first referable to the Upper Miocene, the other 

 apparently to the Eocene. It will serve as an introduction to the list of 

 the Cretaceous and Tertiary plants described until now from the Ameri- 

 can formations, and which may be used as a point of departure for future 

 researches and publications on the subject. 



Part II.— CATALOGUE OF THE CRETACEOUS AND TER- 

 TIARY PLANTS OF NORTH AMERICA, WITH REFERENCES 

 TO THE DESCRIPTIONS. 



EXPLANATION OP ABBREVIATIONS USED IN THE CATALOGUE. 



Am. Journ. Set. ^ Arts. — American Journal Sciences and Arts, vol. xxvii, No. 81, May, 



1859. 

 Annual Eeporis. — Annual Reports of the U. S. Geological and Geographical Survey of. the 



Territories, 1869 to 1874. 

 Boston Journ. of Nat. Hist. — Boston Journal of Natural History, 1863. 

 Cret. Flora. — Report of the U. S. Geological Survey of the Territories by F. V. Hayden. 



Vol. vi. Cretaceous Flora. By L. Lesquereus. (1874.) 

 B. N. Amer. B. Comm. — ReiJort on the Geology and Resources of the Region in the Vicinity 



of the Forty-ninth Parallel. By George Mercer Dawson. (1875.) 

 Ext. Floras. — Notes on the Later Extinct Floras of North America, with descriptions of 



some new species of fossil plants from the Cretaceous and Tertiary strata. By J. S. 



Newberry. 1868. 

 Foss. Plants of Vancouver. — Ueber einige fossile Pflanzen von Vancouver und British- 



Columbien. By Oswald Heer. 

 Flora Alask. — Flora Fossilis Alaskana. By Oswald Heer, 1869. 



Geol. of Vermont. — Report on the Geology of Vermont. By Prof. Ed. Hitchcock. (1861.) 

 Geol. of Tenn. — Geology of Tennessee. By Prof. James M. Safford. (1869.) 

 Fhyll. du Neh. — Les Phyllites Cr6tac6es du Nebraska. Par MM, les Prof. J. Capellini 



et O. Heer. (1866.) 

 Tert. Flora. — Report of the U. S. Geological Survey of the Territories, vol, vii. F. V. 



Hayden. Tertiary Flora. By L. Lesquereux. (1878.) 

 Trans. Am. Phil. Soc. — Transactions of the American Philosophical Society of Philadel- 

 phia, vol. xiii, (1863). (?) 

 Whitnei/s Geol. of the Aurif. Bep. — Report on the Fossil Plants of the Auriferous Gravel 



Deposits of the Sierra Nevada. By L. Lesquereux. In Prof. F. D. Whitney's Memoirs 



of the Museum of Comparative Zoiilogy at Harvard College, vol. vi, no. 2, (1878). 



