39 



Asplenites sp. 



Fragments of a fern with the general aspect of Asplenium were referred to Asplenites by 

 Sir William Dawson in 18r'5. They were found in material obtained from Burrard inlet, 

 British Columbia, where the formation is regarded as of Eocene age. 



Azollophyllum primcevum, Penh. 



Bib : Trans. R. S. C, VIII, 1890, iv, 75-91. 



There is only one record of this form, the details of which, though very imperfectly de- 

 fined, strongly suggest a plant of the type of Azolla. The name given is altogether 

 provisional. The single specimen upon which the name was founded was derived from 

 Stump lake in 1890. 



Betula sp. 



Bib : Trans, R. S. C, VIII, iv, 75-91 ; and XIII, 1907. 



Several of the collections of Tertiary plants have shown, from time to time, more or less 

 numerous impressions of cones which are clearly referable to the genus Betula. Some of 

 these were recorded by Sir William Dawson from the Similkameen river in 1890. More re- 

 cently they have appeared in the collections of Dr. R. A. Daly from the Kettle river ; and in the 

 collections of Lambe in 1906, they have been found at both the Tranquille and the 

 Tulameen rivers. 



In most cases the cones are badly crushed and the details are often obscure. It is there- 

 fore difficult to say if there is more than one species, nor is it possible to correlate these 

 remains with any of the forms recognized through tbe leaves. It may be recalled, however, 

 that no less than four species of birch are represented by their leaves in the same localities 

 from which the cones were obtained. 



Betula angustifolia-, Newb. 



Bib : Lat. Ex. El. XXXV, 63, pi. XLVI, & XLVII, f. 5 : Proc. U. S. Nat. Mus., V., 188 2 

 508. 



The only Canadian record for this species is to be found in the collections of Ells and 

 Johnston from Quilchena in 1904. Newberry originally obtained specimens from Bridge 

 Creek, Oregon, in a formation regarded as Miocene. 



Betula heterodonta, Newb. 



Bib : Proc. U. S. Nat. Mus., V, 1882, 509 : Lat. Ex. EL, XXXV, 64, pi. XLIV, 1-4. 



This somewhat well characterized species was represented by a single specimen of a leaf 

 from the Tranquille river, in the collections of 1906, but it had previously been observed in 

 the collections from Quilchena, which also included a fruit, possibly of the same species. 



The species was originally founded by Newberry on the basis of specimens from Bridge 

 creek, Oregon. The formation of this locality is supposed to be Miocene, which view 

 would be in accord with the probable age of the Quilchena beds. 



Betula macrophylla, Goepp. 



Bib : El. Foss. Arct., VL, pi. II, f. 3-5, p. 14. 



In the collection of Lambe from the Tranquille river there were found several large 

 and well characterized fragments of leaves showing the base venation and margin in a very 



