522 GEOLOGICAL SURVEY OP 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. 



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

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



Not rare along the Labrador coast. (TF. E. Steams.) Not uncom- 

 mon north of Lake Superior, also at Current Eiver, 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. Douglasii, Lindl. Stone Fort, Eed Eiver, near Sel- 

 kirk, Man. (J. M. Macoun.) Emerson, Eed Eiver, 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, Eed Eiver, N.W.T. (David Macoun.) Wild Horse 

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

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

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

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

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



(683.) C. rivuiaris, Nutt. Flathead Eiver, B.C. (Dawson.) In 

 thickets at the mouth of Harrison Eiver, 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. ainifolia, Watson. Port Arthur, west side of take 

 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 Eocky MouQtains. (Macoun.) Fort Sel- 

 kirk, Toucon Eiver, Lat. 62° 45'. (Schwatka.) 



