OF THE LARAMIE FORMATION OF CANADA. 23 
are found, which, so far as can be made out, are similar to those described and figured by 
Heer. Some of the specimens might, it is true, be referred to S. Langsderfii, but there 
seem so many eradations that I doubt if any specific distinction can be made out. I have 
already indicated in Vol. III of these Transactions that the specimens from Vancouver 
Island which have been referred to S. Langsdorfii, probably belong to 8S. Smittiana of 
Heer, a Cretaceous species. 
This species also occurs on the Mackenzie (Richardson). Along with S. Langsdor{ii, 
it is abundantly distributed in the older Tertiary of Europe and America. So far as 
known, it is limited in Canada to the Laramie series. 
Porcupine Creek and Great Valley, collected by G. M. D.; Cones, Dirt Hills, col- 
lected by R. Bell ; Red Deer River and Bow River, J. B. Tyrrell. 
GLYPTOSTROBUS EUROPEUS, Brngt. 
Heer, Flora Helvetica. 
Fragments of branches and of strobiles, referable, though not very certainly, to this 
species in its wider acceptation among palæobotanists, occur in the Upper Laramie of 
Porcupine Creek. It is found, according to Newberry, in the Fort Union group of Dakota, 
and also, according to Heer, in the so-called Miocene of Greenland. Cones, probably of 
Glyptostrobus, occur rarely in the Porcupine Hill beds. 
Collected by G. M. D. 
TAXODIUM OCCIDENTALE, Newberry. 
Newberry, loc. cit. 
This species is found in the eastern division of the Laramie (Selwyn); and in the 
western division, fragments probably referable to it have been found in several places. 
TAXITES OLRIKI, Heer. (PI. I, Fig. 5.) 
Heer, Flora Alaskana, Flora Foss. Arctica, Report of Geological Survey of Canada, 
1879-80. 
Leaves and branches referable to this fine species, collected by Dr. Selwyn in the 
sandstones of the Upper Laramie at Roche Percée, Souris River, were noticed by the 
writer in the report of the Geological Survey of Canada of 1879-80. It was originally 
described by Heer, from Alaska and Spitzbergen, and does not seem to have been noticed 
in the Laramie of the United States. It may have been a northern form. 
SALISBURIA, Sp. 
At least one species of Salisburia belongs to our Laramie Flora. Nutlets occur in 
some of Mr. Tyrrell’s specimens from the Lower Laramie, and fragments of leaves and also 
nutlets were collected by the writer in the Upper Laramie sandstone of Shaganappi Point 
near Calgary. In so far as venation is concerned, these leaves might belong to Les- 
quereux’s species S. polymorpha; but their size and form cannot be made out any further 
than that they represent a broad-leaved species not unlike the modern S. adiantoides. 
4. Monocotyledones. 
LEMNA (SPIRODELA) SCUTATA, Dawson. (PI. I, Fig. 6.) 
Report on 49th Parallel, p. 529, Pl. XVI, Figs. 5 and 6. Lesquereux, Tertiary Flora, 
