57 



by him as probably the same as previously determined by Schroter. Other specimens of wood 

 supposed to be of this genus had been previously obtained from the Tertiary at Calgary, 

 Alberta. 



Gingko adiantoides (Ung.) Heer. 



Bib : Trans. R.S.O., IV, 1886, iv, 19-31 ; VII, 1890, iv, 78, f. 4 : U. S. Geol. Surv., Bull. 37, 

 1887, 15 : Fl. Foss, Arct., V, 21, pi. I, f. 7-10. 



In 1886, Sir William Dawson described certain fragments of leaves of a species of Gingko 

 which he regarded as G. adiantoides (Ung.) Ileer, from the Lignite Tertiary of Porcupine 

 creek and Great valley ; and in 1890 he figured other fragments which he referred to the same 

 species. These were derived from the Tulameen river. 



In Lambe's collection of 1906 there was one small fragment of a leaf from the 

 Tulameen and another fragment from Quilchena showing more than half of the leaf. 

 These fragments were undoubtedly the same species and were also identical with Sir "William 

 Dawson's specimens. Others were obtained from the Horsefly river as well as from the 

 Tranquille. 



m^ 



Fig. 12. Gingko adiantoides (Ung. )', Heer. 



Fruit with stalk of corresponding fruit 



Horsefly River, x 1/1. 



In the material from the Horsefly river there was a specimen of a fruit undoubtedly 

 that of a Gingko (figure 12), and from the close association of this specimen with the leaves 

 of Gingko adiantoides, I have no hesitation in regarding them as of the same species. The 

 fruit answers to the following description : — 



Fruit ovoid, acute, 4 mm. wide, 7 mm. long, on a very short stalk and paired with 

 the short stalk of a similar fruit at the summit of a short branch. 



In the material from the same and other localities there were several isolated, seed- 

 like bodies of about the same form and size as the above, which may no doubt be regarded 

 as fruits of the same species. 



Gingko adiantoides has been recorded from the Livingstone beds of the Bozeman coal- 

 field, Montana, and from the Fort Union group of Seven-mile creek, Montana. Heer has 

 noted its occurrence in the Miocene of Saghalien. 



Gingko digitata, (Brongii,) Heer. 



In the collection of Ells and Johnston from the Diamond Vale Coal Company at 

 Quilchena, in 1904, there were one or two specimens of a Gingko leaf which cannot be 

 separated from Heer's specimen. The formation at that place is regarded as Miocene. 



9197—8 



