50 GEOLOGICAL SURVEY 01? CANADA. 



the Mackenzie along the coast. (Simpson.) Island of St. Lawrence. 

 (Rothr. Alask.) 



Var. glacialis, Dickie. 



D. gUicinUx, Adams. Hook. Fl. I., 51. Macoiin's Cut. No. 159. 



D. oligospcrma, Hook. Fl. I., 51. 



D. densifolia, Nutt. Torr. & Gray, Fl. I., 104. 



Rocks on the loftiest of the Rocky Mountains, Lat. 52°-57°. (Drum- 

 mond.) Rare on the shores of the Arctic Sea ; summit of a limestone 

 hill, Mackenzie River, Lat. 68°. (Richardson.) Bow Eiver Pass. 

 (Macoun.) Summit of S. Kootauie Pass. (Dawson.) Cape Lisburnc. 

 As.sistanco Bay, and Garry Island. (Rothr. Alask.) 



Var. (?) micropetala, Durand. 



D. iiiicTopctala, Hook. Fl. I., 52. 



Sea coast between the Mackenzie and Coppermine Rivers. (Richard- 

 son.) 



Var. (?) corymbosa, Durand. 



D. corymbosa, R. Br. Hook. Fl. I., 52. 

 D. alpina var. S., Hook. Fl. I., 50. 

 Labrador. (Brunei.) Shores of the Arctic Sea. (Capt. Ross.) 

 Greenland. (ITook. Arct. PI.) 



(170.) D. stellata, Jacq. Hook. Fl. I., 53. 

 Unalaschka and Kotzebue Sound. (Torr. & Gray, I., 105.) 



Var. nivalis, Eegel. 



D. mtricella, Wahl. Hook. Fl. I., 52. Macoun's Cat. No. 156. 



Labrador. (Colmaster.) Arctic Shores of America. (Parry.) 

 Wooded country, Lat. 54°-64°. (Richardson.) Stuart Lake Mountain, 

 B. C. (Macoun.) "Wainwright Inlet. (Rothr. Alask.) 



Var. hebecarpa, DO. Hook. Fl. L, 53. 



Arctic America. (Richardson.) Kotzebue Sound, Ounalashka, and 

 Island of St. Lawrence. (Rothr. Alask.) 



Var. Johannis, Eegel. 



f D. lievipes. DC. Hook. Fl. I., 53. 

 D. stellata. Macoun's Cat. No. 160. 



Eocky Mountains, Lat. 52°-5'7°. (Brummond.) Bow Eiver Pass ; top 

 of Mount Selwyn, Peace River Pass; Stuart Lake Mountain, B.C. 

 (Macoun.) 



