414 OK>I,(>(lICAI, SURVEY OF CANADA. 



along brooks, Oak Hills, South Hastings, Out. (Macoitn.) Vicinity 

 of Hamilton. (Buchan.) Near St. Thomas. (Miss Kate Croohs.) 

 St. Cathorinos, Niagara and Maiden. (Marlagan.) Thickets at King- 

 ston, Ont.. ;m(l at Port Stanley, on Lake Eric, (Burgess.) Borders 

 of a crook hall a mile west of London, Ont. (Saujiders.) North 

 shore of Lake Superior. (Agassiz.) Climbing over bushes at the 

 Qu'Appelle Lakes, N.W.T. (J. M. Macoun.) Forming almost impene- 

 trable thickets near the source of the Qu'Appelle, at Swift Current 

 Creek. an<l at the eastern end of the Cypress Hills, N.AV.T. (Macoun.) 

 Winnipeg and North-West Angle Eoad, also Turtle Mountain, 49th 

 ])arallel. (Bauson.) 



(1!H)0.) P. TARTARicuM, Linn. Eough Buckwheat. 



In cultivated and waste gi'ounds; escaped from cultivation. Culti- 

 vated and waste gi-ounds, N.B. (Fowler's Cat.) 



519. FACOPYRUM, Coertn. (BUCKWHEAT.) 



(1001.) F. EscuLENTUM, Mocnch. 



Polygonum Fagopijnim, Pursh, Fl. I., 273. 

 Adventitious in cultivated fields, on waste heaps, by roadsides, and in 

 the neighbourhood of towns and villages from Nova Scotia throughout 

 Canada where there are settlements, 



520. OXYRIA, Hill. (MOUNTAIN SORRELL.) 



(1902.) O. digyna, Campdera. 



0. reniformis, Hook, Fl. II., 129. 

 Rumex digynm, Pursh. Fl. I. 248. 



On high mountains or exposed shores in the north. Summit of Mount 

 Albert, Shickshock Mountains, Gasp^, Que. (Macoun.) Labrador. 

 (Morrison.) Nachvak, coast of Labrador, Port Burwell (Cape Chud- 

 leigh). Cape Prince of Wales, Nottingham and Digge's Islands off 

 Cape Wolstenholme, Hudson Straits. (B. Bell.) Common in the 

 Eocky Mountains and on the Arctic sea-shores. (Richardson & Drum- 

 mond.) Eocky Mountains 6,000 feet altitude, 49th parallel, also eastern 

 summit of North Kootanie Pass. (Dawson.) On high mountains in 

 the Bow Eiver and Kicking Horse Passes, and on Mount Selwyn in the 

 Peace Eiver Pass, also common in the Selkii-k Mountains, B. C. 

 (Macoun.) Eocky Mountains. (Bourgeau.) Islands of Sitka, Ouna- 

 lashka and St. Lawrence, Kotzebue Sound, Cape Lisburne and the 

 Arctic coast. (Rothr. Alask.) 



