Collected by Mr. George Gibbs. 523 



Formntion and locality. Miocene Tertiary strata, Bel- 

 lingham Bay, W. T. 



QUERCUS ELLIPTICA Ncwb. 



Desc. Leaves elliptical or ovate, rounded or some- 

 what wedge-shaped at base, pointed above; margins en- 

 tire. Surface smooth, consistence thick and leathery ; ner- 

 vation strong; lateral nerves numerous, diverging at a large 

 angle, slightly arched upward, often sinuous, forked and 

 anastomosing above. 



In its nervation this species resembles several of the 

 laurel-leaved oaks already described from the Tertiary 

 rocks of Europe, such as Q. nereifolia, Q. Heerii, Q. ela- 

 eiia, etc., but is distinguishable from all these and other 

 otherwise similar species by its broad elliptical or ovate 

 outline. The margins in the specimens before us are ap- 

 parently entire, but they are probably sometimes toothed, 

 as in most allied species. 



Formation and locality. Miocene strata, Bellingham 

 Bay, W. T. 



POPULUS RHOMBOIDEA LcsqX. 



In the collection of the Boundary Commission are nu- 

 merous specimens which I have referred with some doubt 

 to species of Populus described by Mr. Lesquereux, ( Amer. 

 Jour. Science, Vol. XXVII. p. 360). My specimens are, 

 however, too imperfect to permit me to decide with a 

 certainty the question of their identity. Associated as 

 they are with Inoceranms, there can be no reasonable 

 doubt of their Cretaceous age. 



Among the fossil leaves brought from Orcas Island, 

 there are some which bear considerable resemblance to 

 these, but they are too imperfect to render the comparison 

 satisfactory. 



Formation and locality. Cretaceous strata, Nanaimo, 

 Vancouver's Island. 



