14 MUSEUM BULLETIN NO. 26. 



and the Kamloops districts. These regions, owing to the scant precipi- 

 tation and to the nature of the soil, have a flora which strangely contrasts 

 with that of the other parts of the British Columbia mainland. 



In the dry belts two floristic subdivisions may be recognized, which, 

 however, run more or less into each other and, for this reason, will not be 

 dealt with separately. The one subdivision is characterized by so called 

 bunch grasses, of which Agropyrum spicatum and Elymus condensatus 

 are the most prominent species, and is more or less destitute of forest 

 forming trees. The other floristic subdivision of the dry belts is more 

 densely wooded, the characteristic tree of the forest being the Yellow Pine 

 (Pinus ponderosa). On the whole, the dry belt may be said to be 

 parklike in general character. 



Besides the above mentioned plants the following may be noted: 

 Eriogonum niveum, E. heracleoides, A triplex argentea, Thelypodium lacinia- 

 tum, Lesquerella Douglasii, Ribes cereum, Kuntzia tridentata, Astragalus 

 collinus, A. convallarius, A. Purshii, Sphceralcea Munroana, Mentzelia 

 albicaulis, M. Io2vicaulis, M. integrifolia, Oenothera pallida, 0. andina, 

 Phlox longifolia, Gilia aggregata, G. Harknessii, G. pungens, Collomia 

 grandiflora, C. linearis, Pectocarya penicillata, Senecio Thomsoniensis, 

 Erigeron concinnus, E. filifolius, Chtenactis Douglasii, Chrysothamnus 

 nauseosus, C. puberulus, Artemisia trifida, A. tridentata. 



CONCLUSION. 



While it is impossible in a few pages more than to outline briefly 

 the general characteristics of the flora of so large a country as Canada 

 a flora represented by nearly 5,000 well defined species and varieties 

 of flowering plants the enumeration of species representative of the 

 different zones will, it is hoped, serve to give a fair idea of the flora as 

 a whole and help a botanist unfamiliar with a particular region to 

 determine what he may find there. Although there is a large and 

 growing number of local botanists in Canada the general flora of the 

 country is known to few but professional botanists, and it is chiefly 

 for the information of the former class, and for those who do not reside 

 in Canada, that this article has been written. 



