115 



The conclusion which these facts indicate is that the beds of Quilchena are Upper 

 Eocene or Oligocene, and that they cannot be more recent unless there has been a mingling 

 of Eocene and Miocene types. This is indeed suggested by the intermingling of such strong 

 Eocene types as Dryophyllum sfanleyanum, Juglansnigella, Populusgenetrix, P. nebrascencis, 

 Quercus castaneopsis and Rhamnus elegans with Miocene types such as Pinus trunculus, 

 Populus obtrita, Salix perplexa, Prunus merriami, Sequoia angusLifolia and S. heerii. 



TRANQUILLE RIVEB. 



It has generally been supposed that the Kamloops beds and those at the mouth of the 

 Tranquille river, which empties into Kamloops lake from the north, belong to one formation. 

 But out of the plants from Kamloops there is only one representative {Carpolithes sp.) which 

 is also found in the Tranquille river. In point of representative plants common to the two 

 there is therefore no obvious conuexion between the two floras, and that of the Tranquille 

 river must be examined in detail. It embraces in all 37 species and genera. 



DISTRIBUTION OF THE TRANQUILLE RIVER FLORA. 



Alnus carpinoides 



Andromeda delicatula . , 

 Betula sp 



heterodonta 



mticrophylla, . . . 

 Carpinus grandis ...... 



Carpolithes sp 



dentatus 



Cart/a antiquorum 



Cinnamomum affine 



Corylus aTnericana 



Cratcegus tranquUlensis . 



Cyperites sp 



Fious asimincefolia 



Gingio adiantoides 



Olyptostrobus europceus. . 



Juglans rhamnoides 



Picea tranquUlensis . . . . 

 Pinus sp 



trunculus 



Planera longi folia 



Popfilus aeerifolia 



Eliminated 

 Genera. 



General 

 Distribu- 

 tion. 



Exclusively 



Tranquille 



River. 



Eocene 

 Ug. Ter. 



Miocene. 



X Ch. 



Oligocene. 



X U. E. 

 X U. E. 



X U. E. 



xU. E.,L. M. 



X L. M. 

 x U. E. 



X U. E. 

 xU. E.,L. M. 



U. E. 



