OF I'.IMTISll CoLrMIUA AM) Till; \( )i;TII-\VKST. 



33 



Taxodiuni disliihuui, (Mioi finuii.) 

 Sinilax Fi:mkliiii. 



* Popiilus aiiliia, Ilr. 



* r. Ki.hanlsoni. TTr. 



* P. llook.'vi, Ilr. 

 Salix Ttat'aiKt. II v. 

 lli'tnla inarroiihylla. Opt. 

 C'ovvlus Mrfjnarrii, Fm'lios. 



Yiburmiin Nordenskioldii, llr 

 PtorospovmiioK sped al>i lis, Mr. 

 Pi. (Ion talus, Hr. 

 TiliaMaliiTOiii, llr. 

 Phylliios acovoidos, TTr. 

 Carpolithes Si'iiiiiiulinu, TTr. 

 TTodcra MacClurci, llr. 

 Mamiolia Nordi'iiski<ddii, TTr. 



Till' only spocios ooinmon lo ihr ]\[;irlci'uzi(' liivcr l)i'(ls and Ihoso further south, ar« 

 tho.si> uiarki'd with an astorisk, hut 1 l)i'litn'(> Ihat i'arthfr comparison would ineroaso the 

 numhor of idi'utical speines. This I have not had time or opportunity to institute, since 

 the receipt of Heer's last memoir. I feel convinced, however, that the dilfereuces in species 

 in the ditfercnt localities of the Laraiuir, are caused lar^'cly hy dilference of station, and are 

 increased by the different views taken by observers as to the generic aflinities of leaves, 

 and by description of mere varieties as distinct species. The poplars are especially open 

 lo this remark. The genus Poji/i/t/^ seems to have been dominant over wide areas of the 

 west from the later Cretaceous lo the present time; and large (|uantities of material are 

 available which will be of gTcat value in determining horizons ; but at present the confusion 

 of nomenclature of European and Ameriean authors is so great, that a thorough revision 

 of the whole series seems to be recj^uired. 



Tertiar// Plants from the Litrrior of British Columbia. 



I have refen-ed above to these plants as occurring in deposits probably lacustrine and 

 of later age thau the Laramie of the plains. They may be of the same age with those of 

 Burrard's Tnlet. noticed by Ileer in his memoir on Vancouver plants, and with those of the 

 Alaska and Bellingham Bay beds, described by H^eer and Newberry, and with those 

 described by Lesquerenx, from some of the Tertiary deposits of the western territories of the 

 United States, which have been referred to the Miocene period. 



I. — Quesnel and Blucku-ater Rivers^ : — 



The plants from these places are contained in white lacustrine silt and brown ferru- 

 ginous sandstone. They include leaves of Acer, .Tii<^-lans, Cari/a, Castnnea, Qnera/s, Faii'HS, 

 Platnnus, Betula, Rhamnus, Diospi/ros, Taxodiuni and Setjnoia, along with many nuts and fruits 

 probably belonging to the same species with" some of the leaves. None of these species, 

 except the Beqnoia, seem to be identi(\al with any from the Laramie or Cretaceous ; but 

 several are the same with American and l"]uropean species regarded as Miocene. This flora 

 is very rich, especially in friiits, and it is greatly to be desired that more extensive collec- 

 tions should be made in it. The Quesnel beds have afforded a number of specie^ of insects 

 which have been described by T)r. Scudder, and are regarded by him as Tertiary.f 



* G. M. Dawson, Report Geological Survey of Canada, 1S7-5-6, 1877-8. 

 t G. >I. Daw.son, 1. c, 



Sec. IV., 1882. 5 



