40 GEOLOGICAL SURVEY OP CANADA. 



Judge Logie, but as both these species have been included in 

 D. laciniata,T. consider the above references to apply to it, No. 128 

 of my Catalogue (1878) refers to the same polymorphous species. 



42. CARDAMINE, Linn. (BITTER-CRESS.) 



(124.) C. rhomboidea, DC. Spring-cress. 



Arabis rhomboidea, Pers. Pursh., 437. 



C. rotundifolia, var. a., Torr. & Gray, Fl. L, 83. 



Pictou and Truro, N. S. (McKay & Lawson.) Wet meadow at 

 Stinson's Saw Mill on the Moira near Belleville ; also in a wet boggy 

 wood at Amherstburgh, Lake Erie. (Macoun.} Wet places, common 

 at London, Ont. (Burgess.} flalt, Ont, (Miss Crooks.) Maiden, Out, 



(Maclagan.) 



(125.) C. rotundifolia, Michx. Mountain Water-cress. 

 C. rotundifolia var. y., Torr. & Gray, Fl. I., 83. 



In a piece of rich ground within the limits of Belleville, Ont. 

 (Macoun.) In a springy wood at Billings Bridge, near Ottawa. 

 (Fletcher.) 



Var. purpurea, Torr. 



C. rotundifolia, Michx. Hook. Fl. I., 44. 



C. rotundifolia var. /?. Torr. & Gray, Fl. L, 83. 



Beauharnois Co., Q. ; vicinity of Port Colborne, Ont. (McGill Coll. 

 Herb.) Quite common in the vicinity of Hamilton, Ont. (Logie.) 

 Wet, shady woods, London, Ont. (Burgess.} Rocky Mountains, Lat, 

 52-57, and thence to Hudson's Bay in the same latitude. (Drummond.) 



NOTE. Much confusion exists regarding the last three forms, and 

 botanists are earnestly requested to collect all varieties wherever 

 found. The roots are particularly desirable. 



(126.) C. bellidifolia, Linn. Dwarf Water-cress. 



Summits of the Rocky Mountains, Lat. 52. (Drummond.) Through- 

 out Arctic America sparingly. (Richardson.) Greenland. (Hook. 

 Arcl. Fl.) 



(127.) C. purpurea, Cham. & Schlecht 



Possibly this species occurs in the northwestern part of British 

 Columbia, as it is not rare in Alaska, 



