59 

 Hedera macclurii, Heer. 

 Bib : Flor. Foss. Arct., I, 119, 138 : Trans. E.S.C., I, 1882-83, iv, 33. 



Heer originally observed this plant as a constituent of the Tertiary flora of Northern 

 Greenland, and subsequently found it also in the Lignite Tertiary of Mackenzie river. It 

 has not been found elsewhere, and Dawson's reference to it is only a restatement of Heer's 

 distribution. 



Juglans sp. 



Bib : Geol. Surv. Can, 1875-76 ; 1887; 1877-78. 



Various leaves and nuts supposed to represent this genus have been found from tirae to 

 time on the Quesnel river, the Red Deer river and at !N'ine-mile creek on the Similka- 

 meen river. The leaves from the last location are regarded by Sir William Dawson as 

 allied to Juglans rugosa, Lesq. 



Juglans acuminata, A. Br. 



Bib: Trans. R.S.O., VIII, 1902, 46 ; Cat. Cret. and Tert. Fl., 1896, 122. 



This species is recorded from the Red Deer river, and also from Port Graham, Alaska. 



Juglans cinerea, L. 

 Bib : Trans. R.S.C., I, 1882-83, iv, 32 : Brit. N". A. Bound. Comm., 1875, App. A. 330. 



The only references to the occurrence of this walnut in the Lignite Tertiary of Canada 

 are contained in Sir William Dawson's account of the Lignite Tertiary of Porcupine creek. 

 He seems doubtful as to the specific identity, and considers that there is a resemblance to J. 

 bilinica, Ung. 



Juglans crossii, Knowlton. 



Bib : Trans. R.S.C., I, 1895, iv, 137-161 : Tert. Fl., 289. 



The only Canadian record of this species is for Burrard inlet, British Columbia, but it 

 has been recorded in the United States for the Denver group of Carbon, Wyoming ; the 

 Livingstone beds of Bozeman coal-field, Montana, and the Green River group of Green 

 river, Wyoming. 



This species has been described by previous investigators under the name Juglans denti- 

 culata, Heer, but Knowlton has. shown that this name was previously occupied by O. Weber, 

 and he has therefore transferred the species to J. crossii. 



Juglans leconteana, Lesq. 



Bib : Tert. FL, 285. 



Specimens in the 1898 collection from the Red Deer river constitute the only record of 

 this species in Canadian Tertiary deposits, but Lesquereux records it in the Laramie group of 

 Marshall, Colorado ; at Evanston, Wyoming, and Cherry creek, Oregon. 



