tESQUEEEux.1 PALEONTOLOGY LIGNITIC FLORA, ETC. 387 



Liquidambar gracilis, Lesqx. — ^W. G. 



Populns arctica, Heer.— W. G., P. of R., M. B., C— Mo., (Gr. 2.) 



P. decipiens, Lesqx. — C. 



P. attenuata, A. Br.— R. C, C— Mo., (Gr. 1.) 



P. aequalis, Lesqx. — R. C. 



P. mutabilis, var. repandocrenata, A. Br. — C. — Mo., (Gr. 1 and 2.) 



P. latior, var. transversa, A. Br. — W. G. — Mo. 



P. latior, var. cordifolia, A. Br. — M. B. — Mo. 



Alnus Kefersteinii, Gp.— C— Mo., (Gr. 2.) 



Betula Stevensoni, Lesqx. — C, (Gr. 2.) 



Quercus platania, Heer. — 0. — Mo., (Gr. 2.) 



Q. OlafseDi, Heer.— P. of R.— Mo. 



Q. seinulans, Lesqx. — W. G. 



Q. acrodon, Lesqx. — R. C., C. 



Q. Haydenii, Lesqx. — R. C. 



Corylns McQuarryi, Heer. — C— Mo., (Gr. 2.) 



C. grandifolia(?), Ny.— P. of R. 



Pagus antipofi, Heer.— P. of R.— Mo., (Gr. 2.) 



Fagus Deucalionis, U. — C. — Mo., (Gr. 2.) 



Ficus tilisefolia, A. Br.— W. G.— Mo., (Gr. 1 and 2.) 



F. oblanceolata, Lesqx. — C. (?) 



F. lanceolata, Heer.— C.— Mo., (Gr. 4.) 



F. miiltinervis, Heer. — C. — Mo. 



F. arenacea, Lesqx. — C. 



F. Gaudini, Lesqx. — C. 



Platanus aceroides, U.— C., R. C— Mo., (Gr. 2.) 



P. Guillelmai, Gp.— C, P. of R.— Mo. 



Coccoloba laevigata, Lesqx. — 0. 



Cinnamomum Mississippiense, Lesqx. — C, (Gr. 1 and 2.) 



Cinnamomuni species. — 0. 



Cornus rhamnifolia, Heer. — P. of R. — Mo. 



C. acuminata, Ny. — W. G. — Mo. 



Vitis lslandica(?), Heer.— P. of R.— Mo. 



Magnolia Liglefieldi, Heer.— W. G.— Mo., (Gr. 1.) 



Asimina miocenica, Lesqx. — G. 



Dombeyopsis sequifolia, Gp. — P. of R. — Mo. 



Acer trilobatiim, var. productum, Heer.— C. — Mo., (Gr. 2.) 



Paliurus Columbi, Heer. — W. G., C. — Mo. 



Zizyplius Meekii, Lesqx. — 0. 



Z. byperboreus, Heer. — C. — Mo. 



Rhamnus intermedins, Lesqx. — W. G. 



R. Goldianus, var. latior, Lesqx. — 0., (Gr. 1.) 



Juglans acuminata, A. Br. — W. G. — Mo., (Gr. 4.) 



J. rugosa, Lesqx.— 0., W. G., P. of R., (Gr. 1 and 2.) 



J. denticulata, Heer. — C. — Mo., (Gr. 2 and 4.) 



Carpolithes cocculoides, Heer. — 0. — Mo., (Gr. 2.) 



EEMAEKS ON THE SPECIES OF THE THIRD GROUP. 



The general character of the flora of the third group is positively 

 Miocene. Its types are not mixed with older ones, and indicate for 

 the localities where the specimens were found a higher stage of the Lig- 

 nitic, which, however, appears to succeed the second group without any 

 marked disturbances. According to the observations of Messrs. Meek 

 and Hayden, the Washakie group is conformably sui)erposed to the 

 Black Butte or Bitter Creek series, without changes of lithological 



