92 



In Canada it was first reported by Heer as contained in the collections of Sir John 

 Richardson, who also gives a very fine figure of it in his journal of the Searching Expe- 

 dition. In 1879 it was reported by Sir "William Dawson from the Lignite Tertiary of 

 Roche Percee, Souris river, and since then it has appeared in nearly all Tertiary collections. 

 In 1897 Lambe obtained it from the Red Deer river, from which locality it had also 

 been obtained by Dawson in 1887. In 1904 it appeared in the collections of Ells and 

 Johnston trom Quilchena. The more recent collections of Lambe in 1906 show that it is 

 also found in the deposits of the Similkameen, Tranquille and Horsefly rivers. Its recog- 

 nition by Dawson, in the Tertiaiy of Porcupine creek and Blackwater river, affords evidence 

 of a very wide distribution, and the fact that while it is a very well defined type in the Lignite 

 Tertiary, it is also very characteristic of the Miocene. 



Taxus sp. 



Bib : Geol. Surv. Can., 1873-74, 51. 



A specimen of wood collected from the Edmonton coal beds in 1873 was referred by 

 Sir William Dawson to an undetermined species of Taxus. There has been no further 

 opportunity to study this material more fully. 



Thuya interrwpta, Newb. 



Bib: Lat. Ex. EL, 1868,25, 42; pi. XXVI, f. 5-5d : Geol. Surv. Can., 1877-78, 186 B; 

 1875-76 : Trans. R.S.C., IV, 1886, iv, 22 ; X, 1904, iv, 57. 



Thuya interrupia is represented in various Tertiary collections by fragments of leafy 

 branches which often bear inflorescence or fruit. They were noted by Sir William Dawson 

 in the Blackwater river as early as 1875, and since then he obtained them from N"ine-mile 

 creek on the Similkameen, and from the Lignite Tertiary of Porcupine creek. 



In 1901, Penhallow observed a wood from Porcupine creek which he regarded as a 

 species of Thuya, and it may prove to be T. interrwpta. Eurther collections by Ells and 

 Johnston in 1904, and by Lambe in 1906, have shown this species to be a constituent of 

 the flora of Coal brook, and also of Quilchena, where it is found in abundance. 



The only United States locality appears to be the Eort Union group of North Dakota, 

 but it is evident that it had a wide distribution, that it was a somewhat abundant type, and 

 that it ranged from the Lignite Tertiary through the Miocene. 



Trapa horealis, Heer. 



Bib: El. Foss. Alask., 1869, 38 : ¥. A. Bound. Comm., 1875, App. 380: Trans. R.S.O., 

 IV, 1886. 



This species, first observed by Heer in Alaska, does not seem to be on record for any 

 locality in the United States, but is practically confined to Canada where it has been 

 recorded from the Lignite Tertiary of Porcupine creek. 



