THE EOCKY MOUNTAIN EEGION OF CANADA. 9 



Salisburia— Nuts of. (Plate II. Fig. 4.) 



Ovate smooth niitlets like those of the modern G-iukgo, but smaller, abouud in some of 

 beds of the Kootanie series, and are doubtless the fruit of some of the above species. 



Baiera longifolia, Heer. (Plate II. Fig. 5.) 



Heer, Jura Flora Ost-sibiriens, p. 52, PI. VIII. 



Many fragments of leaves of a Baiera occur at Martin Creek. They indicate a species 

 of the genus, and so far as the material avails, are not far from that above named. Bdiem 

 dichotoma and B. cretosa, wlii.h occur in the Lower Cretaceous of Greenland, are also allied 

 forms. Plants of this genus have been phved by Heer among the Taxineœ, near to Salis- 

 buria, which, perhaps, represents their probable atfinities as well as any other arrange- 

 ment. 



Collected by G. M. D. 



PiNUS SUSKWAEN8IS, Dciwson.. (Plate II. Figs. 6, 6a.) 



Dawson, Trans. Eoy. Soc. Can., Vol. I. Sec. IV. p. 23, PI. III. Fig. 3t. 



This species was described, in my former memoir above cited, from imperfect examples 

 obtained at Sirskwa Eiver, the characters given being its long narrow linear leaves, 

 about three inches in length, and borne about eight in a sheath. Many additional spe- 

 cimens both of detached leaves and bundles of leaves occur in the present collections. 

 They shew that the prevalent number of leaves in a sheath was eight, that the leaves 

 were as much as 8 centimetres in length, and that they were rigid, angled and one-nerved. 

 The present species may be compared in age and appearance to P. NonletiskioldU from the 

 Jvirassic of Siberia, and to P. Petersoni from the Lower Cretaceous of Greenland. It is an 

 interesting anticipation of the recent Puius strobus, which it exceeds in the number of 

 leaves in a sheath. 



Collected by G. M. D. at Martin Creek, Coal Creek, Crow's Nest Pass. 



Along with this species there are detached one-nerved leaves of broader form, which 

 may have belonged to some other species of Pinus, or allied coniferous tree. 



Sequoia Smittiana, Heer. (Plate II. Figs. T, *7a.) 



Heer, Kreide-flora der Arctishen Zone, Pis. XVII and XX. 



" Branches elongate, leaves an inch long, rigid and coriaceous, linear, smooth, some- 

 what obtuse but acuminate, tending to a distichous arrangement, slightly narrowed at 

 base, adnate-decurrent, mid-rib strong." 



This species abounds in the Lower Cretaceous of Greenland, and is there the represen- 

 tative of S. Langsdorjfii of the Tertiary, and of the modern S. sempervir^ns ; but is a finer 

 and more luxuriant species than either. After studying the specimens in the present 

 collections, I am now convinced that the Sec^uoia from the Coal measures of Vancouver 

 Island, hitherto referred to S. Langsdorffd, really belongs to this more luxuriant and better 

 developed species. A cone probably of this species occurs in the collections from the 

 Middle Fork, North Branch, Old Man River. 



Large leafy branches collected by G. M. D. at Coal Creek, Crow's Nest Pass. 



Glyptostrobus Grœnlandicu.s, Heer, loc. cit. (Plate III. Fig. 8.) 



Fragments not improbably of this species occur along with Asplenium Dicksonianum in 



Sec. IV., 1S85. 2. 



