CATALOGUE OF CANADIAN PLANTS. 43 



(137.) A. retrofracta, Graham. 



Turrtlis retrofracta. Hook. Fl. I., 41. 

 Portage du Port, Ottawa Eiver. (Gibson.) Hudson's Bay to the 

 Eocky Mountains, and from the Eastern Provinces to Lat. 68° at the 

 Mackenzie Eiver. {Richardson.) Sereno Watson, in his Botanical 

 Index, unites this with the preceding, but I am led to agree with 

 Hooker and consider it distinct, on account of its refracted flowers and 

 pods and its different habitat. 



(138.) A. Drummondii, Gray. 



Turritis stricta, Grab. Hook. Fl. I., 40. 



Turritis glabra var. /3. Torr. & Gray Fl. I., 78. 



(?) Turriti'! spathviata, Nutt. Torr. & Gray Fl. I., 78. 

 Eel Eiver, Eestigouche, KB. (Fowler's Cat.) Prairies of the 

 Eocky Mountains, Lat. 52°-56°. (Drummond.) Abundant on the 

 rocky banks of streams throughout Quebec and Ontario, and west- 

 ward to the Pacific, both on the prairie and in the forest. A fine 

 species, and very distinct. 



Var. brachycarpa, Gray. 



Turritis brachycarpa, Torr. & Gray, Fl. I., 79. 

 On the sandy spit at the mouth of the Magdalen Eiver, Gasp^, 1882. 

 West of Touchwood Hills, N. W.T. (Macoun.) 



(139.) A. Lyallii, Watson. Lyall's Tower-mustard. 



A. Drummondii, var. alpina, Watson. 



{?) A. micropliylla, Nutt. Torr. & Gray, Fl. I., 32. 



This species was found by Dr. G. M. Dawson in 1875, near the 49th 

 parallel, at an attitude of 7,000 feet, and in the .summer of 1881 he 

 again found it near the same locality. 



(140.) A, perfoliata, Lam. Smooth Tower-mustard. 



Turritis glabra, Linn. Hook. Fl. I., 40. 



Turritis macrocarpa, Nutt. Torr. & Gray, Fl. I., 78. 



Montreal Mountain. (McGill Coll. Herb.) Vicinity of Ottawa. 

 (Fletcher Fl. Ott.) Amherstburgh and islands in Detroit Eiver. 

 (Maclagan.) Whiskey Island, Lake Huron. (J. Bell.) Counties of 

 Hastings and Northumberland, Ont. ; abundant at Port Stanley, 

 Ont. ; Owen Sound, Lake Huron ; shore of Lake Superior and 

 fifteen miles up the Kaministiqua. (Macoun.) Hudson's Bay to the 

 Eocky Mountains and as far north as Lat. 64°. (Richardson.) Occasion- 

 ally onthe Great Plains ; at Fort Assiniboine, on the Athabasca, west 

 of Slave Lake ; northern British Columbia. (Macoun.) 



