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MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



Geological discussion 

 An analysis of the specific elements included in the flora of 

 the Saint Eugene silts, in connection with fossil species with 

 which they may be most closely compared, does not produce con- 

 clusive results as to the probable stratigraphic position or exact 

 geologic age of the silts. That the flora is evidently a very recent 

 one can not be questioned; but it is different in its general fea- 

 tures as well, apparently, as in its specific elements, from any 

 fossil flora heretofore described; hence no satisfactory correla- 

 tion is possible. In order, however, to assist in this connection 

 the following table is given : 



Flora of the Saint Eugene Silts 



Fossil species apparently 



Alphabetical list of species 

 Alnus sp. 



Betula ulmoides n. sp. 

 Cebatha multiformis n. sp. 



Cissampelos dubiosa n. sp. 

 Fagus sanctieugeniensis n. sp. 



Fagus sp. 



Ficus canadensis n. sp. 

 Ficus inter glacialis Hollick. 

 Sicoria pseudovata n. sp. 



most closely allied 



Alnus rotundifolia Miller (= A. glutinosa 

 Gaertner). Miocene?, Pliocene, Pleis- 

 tocene, and Modern. 



Alnus rugosa K. Koch (= A. serrulata 

 Willdenow). Pleistocene and Modern. 



Alnus serrulata fossilis Newberry. Ter- 

 tiary (OUgoeene?). 



Betula lutea Michaux f. Pleistocene and 

 Modern. 



Cebatha Carolina (Linnaeus) Britton. 



Pleistocene and Modern. 

 Cocculus latifolius Saporta & Marion. 



Tertiary (Pliocene). 



Fagus grandifolia Ehrliart. Pleistocene 



and Modern. 

 Fagus Aiitvpofii Abieh. Tertiary (Oligo- 



cene?) . 



Fagus deucalionis linger. Tertiary 

 Eocene?). 



Fagus macrophylla linger. Tertiary 



(Eocene?). 

 Fagtts si/lvatica fossilis Laurent & Marty. 



Tertiary (Pliocene). 



Hicoria ovata (Miller) Britton. Pleisto- 

 cene and Modern. 



Hicoria glabra (Miller) Britton. Pleis- 

 tocene and Modern. 



Hicoria pstudoglabra Hollick. Pleisto- 

 cene. 



