Northern Dominion District. 551 
Anemone Drummondii Wa Sibbaldia procumben 
patens. L. var. Na Gray. Oxytropis Fee ER Rydb. 
Ranunculus alvall L. var. Eschscholtzii Wats. Epilobium anagallidifolium Lam. 
(=R. Eschscholtzii Schl.). ryanthus glanduliflorus Gray 
> alpeophilus - Nelson Gaultheria humifusa Graham. 
pygmaeus Wa Androsace subumbellata A. Nelson, 
Draba nivalis Liljb. G ARGIDEIh Are ida Kunth 
Heuchera glabra Willd. 
Leptarrhena amplexifolia Sternb. 
Pr) 
® 
- 
© 
=} 
2 
L. (= V. Wormskjoldii R. & S.). 
Myosotis ae Schmidt. 
Mitella Breweri Gray. Se Lyalli Gra 
Saxifraga er LE; (Pyır Ban Brandegei A. Gray. 
> En Kigeron simplex Greene (=E. uniflorus Hook.). 
> Er st. Senecio triangularis Hook. 
Viola canina £ var. adunca Gray (= V. adunca Taraxacum rupestre Greene. 
Dryas octopetala L. (Smith). » scopulorum Gray. 
Rubus arcticus L. var. grandiflorus Ledeb. 
In concluding this sketch of the vegetation of the Canadian Rocky Mount- 
ains it can be said that the alpine plants are not confined exclusively to the 
mountains above timber-line.e Owing to the presence of large glaciers that 
descend into the valleys the presence of large amounts of treeless morainic 
deposits and varied conditions of soil and light exposures many alpine plants 
descend to the treeless areas much below the true altitudinal limit of the ar- 
borescent species. 
B. Southern Park Mountain District. 
This district comprehends the Stony, or Rocky mountains south of the 
international boundary. The ranges have a general north and south trend 
and between them there are valleys of larger or smaller size known as parks. 
Above the timber-line the peaks are naked, below on the flanks of the 
mountains, great forests stand, and often spread over elevated plateaus, while 
the valleys are beautiful prairies or parks. Small and picturesque parks exist 
sometimes called gardens. This is, therefore, a land of mountain ranges and 
valleys, of peaks and parks, of naked crags, forest clad mountains, lakes and 
plateaus (see ante page 106). 
ı. The southern Rocky Mountains Forests. 
a) Coniferous Forest Formations. 
The forest formations of this district are essentially coniferous. Here, as 
compared with the eastern deciduous forest region, there is a more equable 
ae of temperature throughout the year, with winter rains and dry 
summer 
The a element is largely confined to edaphic situations along the 
water courses‘). Timber line seems to exist in the Sawatch and other in 
ı) The writer is indebted to the following mentioned in the Bibliography page 7174: 
L£ißer6, J. B.; Aykes, H. B.; Town, F. E.; Tweedy, FR.; BRANDEGERE, T. $.; JocK, JoHn G. 
