N. A. INVERTEBRATE PALyEONTOLOGY. 735 



folia, Podofjonium acuminatum, Leguminosites serrulatus, L. species, An- 

 tholithes amcenus, A. improhus, Carpites gemmaceus, G. MiJioidcs. 



(3) Geueiiil remarks. Table of distribution of the plants of the Green 

 Eiver and White River groups. 



(4) Relationshii^ of the local groups indicated by correlation of spe- 

 cies. The plants which have heretofore been referred by the author to 

 the Green Eiver group represent two different horizons : Green River 

 Station, Randolph Company, and Alkali Station for one, Florissant, 

 White River, and Elko for a second. The materials obtained at the first 

 are too scant to afford any indication of their reference to any particular 

 stage of the Tertiary ; they may represent a lower group than that of 

 the Florissant, but what is said of the relationship of these plants au- 

 thorizes a contrary conclusion. Considers the flora of Florissant prob- 

 ably synchronous with that of the Oligocene of France. 



IV. Miocene flora : 



(1) Description of Miocene species from specimens obtained in the 

 so-called Bad Lauds of Dakota. The following are new species : Asple- 

 nium tenerum, Equisetum glubosum, Quercus Dentoni, Ficns artocarpoides, 

 Tetranthera prcecursoria, Cinchonidium ovale, Viburnum dalcotense, V. 

 Dtntoni, Aralia acerifolia, Acer gracilescens, Rhus Winchellii, Prunus 

 dakotensis, Cercis truncata. 



(2) Description of Miocene species of California and Oregon. The 

 following species are new : Betula parce-dentata, Alnus corrallina, A. car- 

 pinoides, Quercus Breweri, Ulnus pseudo-americana, Ficns asiminwfolia, 



Laurus grandis, L. salicifolia, L. californiea, Greicia auriculata, Allan- 

 thus ovata, Myrtus oregonensis, Colutea howeniana. 



(3) Contributions to the Miocene flora of Alaska. The following spe- 

 cies are new: Tlmites {Chamcecyparis) Alaslcensis, Comptonia cvspidata, 

 C. pra;missa, Betula Alaslcana, Alnus corijlifolia, Quercus DalUi, 



(4) Si)ecies of plants from the chalk bluffs of California. 



(5) Table of distribution of the North American Miocene fossil plants. 



(6) Remarks on the species of Miocene plants. The author concludes 

 that as the fossil floras of Carbon and the Bad Lands are related by 

 ten identical species, and those of the Bad Lands and Alaska by thir- 

 teen, these three groups apparently represent the same stage of the 

 North American Miocene. The flora of Carbon has only four species 

 identified in that of Alaska, but their lesser degree of affinity may be 

 ascribed to difference in latitude. 



Lesquereux, Leo. — Contributions to the Fossil Flora of the Western 

 Territories, part iii. Pop. Sci. Monthly, vol. xxvii, p. 560. August, 

 1885. New York. 

 Notice and brief abstract of Professor Lesquereux's vol. vui of Bep. 



Gcol. Surv. Terr., under F. V. Hayden. 4to series. 



