522 GEOLOGICAL SURVEY OF CANADA. 



N.B., are identical with them. Mr. Watson believes the former to be 

 P. Arcuparia, and hence introduced. We may have three forms in- 

 stead of two in Canada, and eastern collectors would do well to pro- 

 cure specimens in both fruit and flower. 



Var. microcarpa, Torr. & Gray. 



Sorbus Aucuparia, var. a. Michx. Fl. I., 290. 

 S. microcarpa, Pursh, Fl. I., 341. 



Not rare along the Labrador coast. (W. E. Stearns.) Not uncom- 

 mon north of Lake Superior, also at Current River, 1884. (Macoun) 



174. CRAT/ECUS. 



Page 147. 



(679.) C. tomentosa, Linn. Neighborhood of Quebec and along 

 the road to Lorette. (St. Cyr.) 



Var. punctata, Gray. Ste. Anne de la Parade, Champlain Co., 

 Q. (St. Cyr.) 



Page 148. 



(682.) C. Douglas ii, Lindl. Stone Fort, Red River, near Sel- 

 kirk, Man. (J. M. Macoun.) Emerson, Red River, Man. Dr. Burgess 

 writes that it is likely all Dr. Dawson's specimens should be placed 

 here. Cypress Hills, N.W.T. (J. M. Macoun.) Tail Creek, near 

 Buffalo Lake, Red River, N.W.T. (David Macoun.) Wild Horse 

 Creek, Kootanie valley, B.C. (Dawson) In thickets at Winnipeg and 

 westward to the Rocky Mountains ; also in the Columbia valley at 

 Donald and along Beaver Creek in the Selkirk Mountains, B. C. 

 (Macoun.) Apparently all the prairie Cratcegus is this form, but 

 whether it is identical with the Pacific form is still an open question. 



(683.) C. rivularis, Nutt. Flathead River, B.C. (Dawson.) In 

 thickets at the mouth of Harrison River, Fraser valley, B.C., 1875. 

 (Macoun.) Base of York Mountain, near Sumass, Fraser valley, B.C. 

 (A. Bowman.) Common in the vicinity of Victoria, Vancouver Island. 

 (Fletcher.) 



175. AMELANCHIER. 



(684.) A. alnifolia, Watson. Port Arthur, west side of Lake 

 Superior, along the shore; also in thickets at Emerson, Man. (Bur- 

 gess.) We now refer the whole of the prairie Amelanchier to this form, 

 as well as that found in the Rocky Mountains. (Macoun.) Fort Sel- 

 kirk, Youcon River, Lat. 62 45'. (Schwatka.) 



