Secrion IV., 1907. [287 ] _Trans. R. 8. C. 
XIX.—A Report on Fossil Plants from the International Boundary 
Survey for 1903-05, collected by Dr. R. A. Daly. 
By D. P. PENHALLOw, D.Sc., F.G.S.A. 
(Read May 15th, 1907.) 
In the spring of 1903 I received from Dr. R. A. Daly, of the 
Department of the Interior, a small collection of plants from the region 
of the International Boundary in British Columbia, as derived from a 
very rapid reconnaisance. This material was reported upon tentatively 
in May of the same year, and though much of it was of such an imper- 
fect nature as to render final conclusions impossible, it was nevertheless 
of a very suggestive character, and it not only yielded some new species, 
but it permitted of provisional conclusions as to the ages of the several 
deposits represented. 
In the autumn of 1905, Dr. Daly forwarded to me a larger col- 
lection, embracing material of a much more definite character, and 
derived not only from the same, but from other localities in the same 
general region. This material was found to confirm many of the 
provisional conclusions derived from the previous collection; to add 
several new species to our knowledge of the flora of that section, and 
to afford very definite information as to the age of the deposits. It 
is thus found to be desirable to combine these two collections in the 
present report. As all the specimens were designated by numbers 
representative of special localities, these numbers may be used in the 
present instance for convenience of reference; but the individual speci- 
mens of each group will also be further designated by the use of 
subordinate letters or numbers which will be found upon the label 
of each specimen described, and in this way the identity may be fully 
established, and reference to the type facilitated. 
GENERAL DESCRIPTION OF THE MATERIAL AND ITS SOURCE. 
No. 250 of 1903 and 1905.—The two collections under this number 
represent identical localities. Dr. Daly states that they were obtained 
from a shallow gulch east of a bridge over Kettle river, six miles up 
the stream from the town of Midway. “The formation is a series of 
gray sandstone layers; this is one of the isolated patches of so-called 
Tertiary noted by Dawson in his description of the interior of British 
Columbia,” and on the map of the Geological Survey it is marked 
as of Miocene age. “It is cut by basaltic and andesitic dikes, and is 
