40 GEOLOGICAL SURVEY OP CANADA. 



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

 D. laciniata, I Consider the above references to apply to it, No. 128 

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



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



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

 Arahh rhomboidea, Pers. Pursh., 437. 

 C. rolundifolia, var. a., Torr. & Gray, Fl. I., 83. 



Pictou and Truro, ISI. S. {McKay & Laioson.) "Wet meadow at 

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

 wood at Amherstburgh, Lake Brie. (Macoun.) "Wet places, common 

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

 (Maclagan.) 



(125.) C. rotund ifolia, Michx. Mountain "Water-cress. 



C. rolundifolin 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. 



a rolundifolia, Michx. Hook. Fl. I., 44. 



C. rolundifolia var. /3. Torr. & Gray, Fl. I., 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.) Eocky 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 Eocky Mountains, Lat. 52°. (Drummond.) Through- 

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

 Arci. Fl.) 



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



Possibly this species occurs in the northwestern part of British 

 Columbia, as it is not rare in Alaska. 



