50 ROYAL SOCIETY OF CANADA 
under the name of Physagenia parlatorii, and the opinion is expressed 
that all specimens passing under that name, and abundant in Canada 
and the United States, represent species of Equisetum. In the present 
instance, it seems highly probable that all of these species as figured, 
may be referred to E. arcticum, though the identity is not clearly 
established by the figures and descriptions so far published. 
SEQUOIA COUTTSIÆ, Heer. 
Heer, Flora of Northerm Greenland (1869), 464, Pl. XLI., I-9; XLII., 1; XLVIII. 
Knowlton, Fossil Flora of the Yellowstone National Park, ENCRES, 681. 
Dawson, Trans. R. Soc. Can., V. (1887), iv., 35. 
Rept. Geol. Surv. Can., N. Ser., II. (1886), 135 E. 
Eocene of the Red Deer River, Canada; Laramie of the Yellowstone National 
Park; Lower Miocene of Greenland; Cretaceous of Staten Island. 
Numerous fragments of leafy branches together with one specimen 
showing two cones, apparently young. This species was found in 
the former collections recorded by Sir William Dawson from the same 
locality. 
4 
SEQUOIA NORDENSKIOLDII, Heer. 
Heer, Miocene Fauna and Flora of Spitzbergen (1870), 36, Pl. II, 136. 
Newberry, Later Extinct Floras of N. America, XXXV., 20, Pl. XXVI., 4. 
Dawson, Trans. R. Soc. Can., IV. (1886), iv., 22. 
Miocene of John Day Valley, Oregon; Mackenzie River. 
Upper Laramie (Eocene) of Porcupine Creek, Great Valley and Red Deer 
River, Canada. 
In the original description of this well known species from Cape 
Staratschin, Spitzbergen, Heer lays stress upon the decurrent char- 
«cter of the leaves. In the present material from the Red Deer River, 
which consists of three specimens of short, leafy branches, there is 
an exact agreement with the diagnosis, except that the leaves are 
here spreading, while in the type they are more or less conspicuously 
appressed to the branch. Newberry, on the other hand, in describing 
specimens from the Laramie of the Yellowstone River in Montana, 
figures several branches in which the leaves are spreading exactly as 
in the specimens from the Red Deer River. 
