35 

 Acer dubium, Penh. 

 Bib : Trans. E. S. C, VIII, 1902, iv, 68. 



In 1902 Penhallow described the fruit of a maple under the name of Acer dubium because 

 of the difficulty of correlating it with any previously recognized form or species. It was 

 obtained from the Horsefly river, and it is quite possible that it may be identical with one of 

 the more recently obtained specimens from the same locality, but of this no definite con- 

 clusion can be stated, and for the present the first designation must be retained. 



Acer grossedentatum, Heer. 



Bib : Geol. Surv. Can., 1875-76, 259-260. 



In 1875 Sir William Dawson recorded the occurrence at Quesnel of a maple leaf which 

 he regarded as identical with Heer's A. grossedentatum, a species also common to the Euro- 

 pean Tertiary. 



Acer trilobatum produclum, Heer. 



Bib: Ter. Fl., VII., 261, pi. LXV, f. 10, 11: Foss. Fl. of Alaska, IT. S. Nat. Mus., XVII, 

 227: Fl. Tert. Helv. 



One incomplete specimen of a leaf from the Horsefly river appears to be indentical with 

 Acer trilobatum productum of Ileer, originally obtained by Lesquereux from the Tertiary of 

 Carbon, Wyoming. This species has not been recorded by any previous observers for any 

 part of Canada, but it is a form whi<;h occurs at Herendeen bay, Alaska, and it is a well 

 known form in the Tertiary of Europe as first determined by Heer. 



Acerites negundifolium, Dn. < 



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



Fragments of leaves of a somewhat problematical nature were obtained from Stump 

 lake in 1890 and referred by Sir William Dawson to Acerites negundifolium. They are not 

 represented in any of the later collections and, so far as the writer is aware, they do not seem 

 to be represented in any of the collections from other localities, either in Canada or the 

 United States. 



^sculophyllum hastingsense, Dn. 



Bib : Trans. R.S.C., I, 1895, iv, 137-161. 



Fragments of leaves, evidently of the character of ^sewtes, were obtained from Burrard 

 inlet and described by Sir William Dawson in 1895, under the above name. As they have 

 not reappeared in any of the Tertiary collections of later date it is impossible to add anything 

 to the original and very meagre account. 



u^sculus sp. 



Bib : Trans. E.S.C., IV, 1886, iv, 29, pi. II, I 16. 



Lambe's collection from the Tulameen river in 1906 included a few very doubtful 

 remains which seemed to represent portions of a fruit with a hard and resisting shell. The 

 only comparison that seemed at all promising was with fruits of the horse chestnut, and this 

 seemed the more likely to be correct because of their somewhat striking resemblance to 



