[pAwson | VANCOUVER TERTIARY PLANTS 147 
species, show that it must have been widely distributed in Kocene times 
over the Northern Hemisphere, and extended upward into the Oligocene. 
With the exception of its cordate base, the leaves approach very nearly 
to those of P.monodon, Lesq., from Baton Mountains and Fischer's Peak. 
PopuLUS ROTUNDIFOLIA, Newberry. 
(Fig. 10.) 
One of the layers of the Hastings cores has cut around a leaf of this 
pretty little species so perfectly as to show nearly its whole margin. The 
species is characteristic of the Fort Union group, and is also found in the 
Bad Lands.” It is related to P. arctica and P. cuneata, which are found 
in the Oligocene of the Similkameen district. 
SALIX VARIANS, Goeppert. 
N 
(Fig. 11.) 
Goeppert, Flora Schloss ; Lesquereux, vol. viii., p. 247. 
In collections from Burrard’s Inlet, also in those from Stanley Park, 
but the venation is not very distinct. It is a species credited by Les- 
quereux to Table Mount, California, and to Corral Hollow, Oregon, and 
is also found in Alaska in beds of Laramie age. 
SALIX INTEGRA, Goeppert. 
(Fig. 12.) 
Lesquereux, vol. vii., p. 107; vol. viii., p. 248. 
Leaves referable by their form to this species are scattered abund- 
antly over some surfaces at Burrard’s Inlet. The venation is not well 
preserved. Similar leaves, though less abundant, appear in the collections 
from Hastings and Stanley Park. 
Lesquereux finds this species at Black Buttes, Wyoming, and at 
Golden, Colorado, in Lower Tertiary. He also notes it at Corral Hollow, 
Cal., and C. augusta, a closely allied form, at Old Field, Oregon. 
DrYoOPHYLLUM STANLEYANUM,S. N. 
(Fig. 13.) 
Quercus furcinervis ? of Lesquereux, Geol. Survey of U.S., vol. viii. 
Leaf thick, coriaceous, granulate on the surface, oblong, obovate, 
narrowing regularly below to the petiole. Midrib and veins strong, 
sunken in the leaf, which swells between the veins. Veins proceeding 
from the midrib almost at right angles, but bending upward toward the 
