CATALOGUE OP CANADIAN PLANTS. 41 



(128.) C. angulata, Hook. Fl. I., 44. 



In rich soil around Victoria, Vancouver Island, and near New West- 

 minster, B.C. This is the C. paucisecta of my Catalogue, 1878. 



(129.) C. pratensis, Linn. Ladies' Smock. 

 C. digitata {?) Richards. Frankl. Journ., 15. 

 Wet, swampy meadows, Labrador. (Brunei.) St. Patrick, Charlotte 

 Co., N. B. (Vroom.) Near Ottawa and Prescott Railway; vicinity of 

 Prescott Junction ; also three miles south- of Ottawa. (Billings.) 

 Wet meadows and swamps, Hastings County, Ont. (Macoun.) Near 

 Millgrovo, Ont. {Logic.) Shore along Lake Burwell, Lambton Co, Ont. 

 (Gibson.) Whiskey Island, Georgian Bay. (,/. Bell.) Hudson's Bay. 

 (Drumniond.) Throughout Arctic America. (Richardson.) East coast 

 of Hudson's Bay. (R. Bell.) Greenland. (Hook. Arct. PL) The 

 Canadian form is usually more slender than the European, and always 

 white flowered. 



(130.) C. hirsuta, Linn. Small Bitter-cress. 

 C. Pennsylvanica, INIuhL Pursh, 240. 

 Very abundant in rivulets and around springs, fi-om Nova Scotia to 

 the shores of the Arctic Sea and we?t to the Pacific. Eastern forms are 

 readily distinguished from western ones, but are scarcely diff'erent 

 enough to found a vaiiety upon. A peculiar form grows on the height 

 of land west of Lake Superior, which seems to connect the species with 

 the following variety : — 



Var. sylvatica. Gray, Manual, t!7. 



C Virgimca, Michx. Pursh, 439. 



C. hirsuta, var. Virgimca, Torr. & Gray Fl. I., 8,"). 



C. sylvatica, Gray- Macoun's Cat, No. 12(i. 



Dry rocks close to Shannonville station of the G. T. P., Ont., 1864. 

 (Macoun.) Rocks at the Montmorenci Falls, Quebec. (Brunet.) 

 Found at Gait, Ont. (Logic.) Jones' Falls, near Owen Sound. (Mac- 

 lagayi.) Vicinity of Ottawa. (Fletcher Fl. Ott.) 



(131.) C. oligosperma, Nutt. Torr. & Gray Fl. I., 85. 



In low, wet places around Victoria, Vancouver Island, 1875. Appar- 

 ently common. (Macoun.) 



43. ARABIS, Linn. (ROCK-CRESS.) 



(132.) A. lyrata, Linn. Lyre-leaved Rock-cress. 

 Sisymbrium arabidoides. Hook. Fl. I., 63. 

 Common on the banks of rivers fi'om the Eastern Provinces to Lat. 



